Re: [MBZ] 606 semi stripped belt tensioner hole
Whichever one it was, never had an issue with it. Sent from my iPhone > On Oct 25, 2020, at 11:28 PM, OK Don via Mercedes > wrote: > > One of the 300D 2.5T's you got from me had the epoxy fix for that exact > bolt - I don't remember which one. > >> On Sun, Oct 25, 2020 at 11:25 PM OK Don wrote: >> >> It depends on how long you expect him to keep the car. If it will be >> replaced in a year or two, use the thread fixing epoxy, if longer, do it >> right with a helicoil. >> >> On Sun, Oct 25, 2020 at 6:02 PM Kaleb Striplin via Mercedes < >> mercedes@okiebenz.com> wrote: >> >>> My biggest concern with that is getting the hole drilled straight. >>> Probably would need to remove the radiator to have more room to work. >>> >>> On 10/25/2020 5:48 PM, OK Don via Mercedes wrote: Having done all of the above, I would helicoil it. On Sun, Oct 25, 2020 at 5:43 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: > I do not think I am going to helicoil it. I see the potential to make > it much worse. I see several folks on the forums mentioning they just > coated the threads with JB Weld and it has been fine. I also have seen > this Locktite thread repair and thought about trying it. Basically you > coat the bolt with a release agent, then mix the 2 part epoxy. Coat >>> the > bolt with it then run the bolt in the hole for 5 minutes. After 5 > minutes, remove the bolt and then let the epoxy set for 30 minutes > before then screwing the bolt in. Supposedly it it forms new threads > using the bolt as the pattern. > > > >>> https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSEUII > > > On 10/25/2020 5:38 PM, OK Don via Mercedes wrote: >> My next concern would be cleaning up the shavings after tapping and >> installing the helicoil. I have first hand experience with this from >> helicoiling a head hold down stud in a VW case once - despite out best >> efforts at containing and then removing the chips, the engine seized >>> in >> about a mile or two. Tear-down revealed lots of aluminum shavings in >>> the >> crank bearings. >> I read a tip on an airplane forum the other day where he >> recommended filling the area with shaving cream before drilling, >>> tapping, >> and breaking off the tang of the helicoil, then vacuuming it out >> afterwards. He claimed that you get all the chips out and that the > shaving >> cream (soap) doesn't hurt anything. I've never tried this, YMMV. >> >> It's a metric thread, use a pair of calipers and measure the diameter >>> --- >> If you don't have a pair of calipers, I can recommend this set (the HF > ones >> died early and were not repeatable) >> > >>> https://www.amazon.com/gp/product/B001AQEZ2W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8=1 >> I like them so much that I bought two, one for each side of the >>> hangar so >> I'm running back and forth all the time looking for them. >> >> On Sun, Oct 25, 2020 at 4:04 PM Kaleb Striplin via Mercedes < >> mercedes@okiebenz.com> wrote: >> >>> Any idea what size helicoil it would be? >>> >>> On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: Time for a Helicoil thread repair kit. That mounting is a high stress area, with a repeated high failure > rate.. >>> It needs full thread contact and regular inspection of the bolt for > working loose. Spend the money and time to repair the thread, It should last for a > good while... Don't repair it, just kluge it with JB or something, and >>> when > it lets go and the pulley/ belt/ fan eats whatever is handy at highway speed... you get to buy lots of new parts and labor... Your call... Helicoil repair kit would be mine.. On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: > Working on my fathers 98 e300 doing routine maintenance. Noticed >>> the >>> belt > tensioner was cockeyed. Typical. On this car the tensioner was >>> loose >>> with > the PO and he I believe used some lock tight and tightened it back > down. > The threads were somewhat stripped out. I was aware at some point >>> it >>> could > become an issue. When I removed the bolt it was tight, not loose so > I’m > sure the tensioner is just worn out. When I go to replace it I >>> don’t >>> think > I’m going to be able to crank down on it like normal. It appears >>> the >>> first > half of the threads are stripped so it’s just grabbing with the >>> back >>> half. > Think I should clean it up real good and used either red or blue >>> locktite? > What about JB welding it? What about running a
Re: [MBZ] 606 semi stripped belt tensioner hole
Good tip. I'll have to remember that one. Rick From: mercedes@okiebenz.com Sent: October 25, 2020 10:12 PM To: mercedes@okiebenz.com Reply-to: mercedes@okiebenz.com Cc: astr...@indiana.edu Subject: Re: [MBZ] 606 semi stripped belt tensioner hole Axle grease in the drill flutes and in the thread tap catches the shavings. I've never had an issue with shavings remaining if I do that. Work slowly! Allan ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 606 semi stripped belt tensioner hole
One of the 300D 2.5T's you got from me had the epoxy fix for that exact bolt - I don't remember which one. On Sun, Oct 25, 2020 at 11:25 PM OK Don wrote: > It depends on how long you expect him to keep the car. If it will be > replaced in a year or two, use the thread fixing epoxy, if longer, do it > right with a helicoil. > > On Sun, Oct 25, 2020 at 6:02 PM Kaleb Striplin via Mercedes < > mercedes@okiebenz.com> wrote: > >> My biggest concern with that is getting the hole drilled straight. >> Probably would need to remove the radiator to have more room to work. >> >> On 10/25/2020 5:48 PM, OK Don via Mercedes wrote: >> > Having done all of the above, I would helicoil it. >> > >> > On Sun, Oct 25, 2020 at 5:43 PM Kaleb Striplin via Mercedes < >> > mercedes@okiebenz.com> wrote: >> > >> >> I do not think I am going to helicoil it. I see the potential to make >> >> it much worse. I see several folks on the forums mentioning they just >> >> coated the threads with JB Weld and it has been fine. I also have seen >> >> this Locktite thread repair and thought about trying it. Basically you >> >> coat the bolt with a release agent, then mix the 2 part epoxy. Coat >> the >> >> bolt with it then run the bolt in the hole for 5 minutes. After 5 >> >> minutes, remove the bolt and then let the epoxy set for 30 minutes >> >> before then screwing the bolt in. Supposedly it it forms new threads >> >> using the bolt as the pattern. >> >> >> >> >> >> >> https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSEUII >> >> >> >> >> >> On 10/25/2020 5:38 PM, OK Don via Mercedes wrote: >> >>> My next concern would be cleaning up the shavings after tapping and >> >>> installing the helicoil. I have first hand experience with this from >> >>> helicoiling a head hold down stud in a VW case once - despite out best >> >>> efforts at containing and then removing the chips, the engine seized >> in >> >>> about a mile or two. Tear-down revealed lots of aluminum shavings in >> the >> >>> crank bearings. >> >>> I read a tip on an airplane forum the other day where he >> >>> recommended filling the area with shaving cream before drilling, >> tapping, >> >>> and breaking off the tang of the helicoil, then vacuuming it out >> >>> afterwards. He claimed that you get all the chips out and that the >> >> shaving >> >>> cream (soap) doesn't hurt anything. I've never tried this, YMMV. >> >>> >> >>> It's a metric thread, use a pair of calipers and measure the diameter >> --- >> >>> If you don't have a pair of calipers, I can recommend this set (the HF >> >> ones >> >>> died early and were not repeatable) >> >>> >> >> >> https://www.amazon.com/gp/product/B001AQEZ2W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8=1 >> >>> I like them so much that I bought two, one for each side of the >> hangar so >> >>> I'm running back and forth all the time looking for them. >> >>> >> >>> On Sun, Oct 25, 2020 at 4:04 PM Kaleb Striplin via Mercedes < >> >>> mercedes@okiebenz.com> wrote: >> >>> >> Any idea what size helicoil it would be? >> >> On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: >> > Time for a Helicoil thread repair kit. >> > That mounting is a high stress area, with a repeated high failure >> >> rate.. >> It >> > needs full thread contact and regular inspection of the bolt for >> >> working >> > loose. >> > >> > Spend the money and time to repair the thread, It should last for a >> >> good >> > while... Don't repair it, just kluge it with JB or something, and >> when >> >> it >> > lets go and the pulley/ belt/ fan eats whatever is handy at highway >> > speed... you get to buy lots of new parts and labor... >> > >> > Your call... Helicoil repair kit would be mine.. >> > >> > On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < >> > mercedes@okiebenz.com> wrote: >> > >> >> Working on my fathers 98 e300 doing routine maintenance. Noticed >> the >> belt >> >> tensioner was cockeyed. Typical. On this car the tensioner was >> loose >> with >> >> the PO and he I believe used some lock tight and tightened it back >> >> down. >> >> The threads were somewhat stripped out. I was aware at some point >> it >> could >> >> become an issue. When I removed the bolt it was tight, not loose so >> >> I’m >> >> sure the tensioner is just worn out. When I go to replace it I >> don’t >> think >> >> I’m going to be able to crank down on it like normal. It appears >> the >> first >> >> half of the threads are stripped so it’s just grabbing with the >> back >> half. >> >> Think I should clean it up real good and used either red or blue >> locktite? >> >> What about JB welding it? What about running a tap down the hole to >> clean >> >> it up? Anybody know what size it would be or if that would even >> work? >> See >> >> photos and video below. >> >> >> >>
Re: [MBZ] 606 semi stripped belt tensioner hole
It depends on how long you expect him to keep the car. If it will be replaced in a year or two, use the thread fixing epoxy, if longer, do it right with a helicoil. On Sun, Oct 25, 2020 at 6:02 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: > My biggest concern with that is getting the hole drilled straight. > Probably would need to remove the radiator to have more room to work. > > On 10/25/2020 5:48 PM, OK Don via Mercedes wrote: > > Having done all of the above, I would helicoil it. > > > > On Sun, Oct 25, 2020 at 5:43 PM Kaleb Striplin via Mercedes < > > mercedes@okiebenz.com> wrote: > > > >> I do not think I am going to helicoil it. I see the potential to make > >> it much worse. I see several folks on the forums mentioning they just > >> coated the threads with JB Weld and it has been fine. I also have seen > >> this Locktite thread repair and thought about trying it. Basically you > >> coat the bolt with a release agent, then mix the 2 part epoxy. Coat the > >> bolt with it then run the bolt in the hole for 5 minutes. After 5 > >> minutes, remove the bolt and then let the epoxy set for 30 minutes > >> before then screwing the bolt in. Supposedly it it forms new threads > >> using the bolt as the pattern. > >> > >> > >> > https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSEUII > >> > >> > >> On 10/25/2020 5:38 PM, OK Don via Mercedes wrote: > >>> My next concern would be cleaning up the shavings after tapping and > >>> installing the helicoil. I have first hand experience with this from > >>> helicoiling a head hold down stud in a VW case once - despite out best > >>> efforts at containing and then removing the chips, the engine seized in > >>> about a mile or two. Tear-down revealed lots of aluminum shavings in > the > >>> crank bearings. > >>> I read a tip on an airplane forum the other day where he > >>> recommended filling the area with shaving cream before drilling, > tapping, > >>> and breaking off the tang of the helicoil, then vacuuming it out > >>> afterwards. He claimed that you get all the chips out and that the > >> shaving > >>> cream (soap) doesn't hurt anything. I've never tried this, YMMV. > >>> > >>> It's a metric thread, use a pair of calipers and measure the diameter > --- > >>> If you don't have a pair of calipers, I can recommend this set (the HF > >> ones > >>> died early and were not repeatable) > >>> > >> > https://www.amazon.com/gp/product/B001AQEZ2W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8=1 > >>> I like them so much that I bought two, one for each side of the hangar > so > >>> I'm running back and forth all the time looking for them. > >>> > >>> On Sun, Oct 25, 2020 at 4:04 PM Kaleb Striplin via Mercedes < > >>> mercedes@okiebenz.com> wrote: > >>> > Any idea what size helicoil it would be? > > On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: > > Time for a Helicoil thread repair kit. > > That mounting is a high stress area, with a repeated high failure > >> rate.. > It > > needs full thread contact and regular inspection of the bolt for > >> working > > loose. > > > > Spend the money and time to repair the thread, It should last for a > >> good > > while... Don't repair it, just kluge it with JB or something, and > when > >> it > > lets go and the pulley/ belt/ fan eats whatever is handy at highway > > speed... you get to buy lots of new parts and labor... > > > > Your call... Helicoil repair kit would be mine.. > > > > On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < > > mercedes@okiebenz.com> wrote: > > > >> Working on my fathers 98 e300 doing routine maintenance. Noticed the > belt > >> tensioner was cockeyed. Typical. On this car the tensioner was loose > with > >> the PO and he I believe used some lock tight and tightened it back > >> down. > >> The threads were somewhat stripped out. I was aware at some point it > could > >> become an issue. When I removed the bolt it was tight, not loose so > >> I’m > >> sure the tensioner is just worn out. When I go to replace it I don’t > think > >> I’m going to be able to crank down on it like normal. It appears > the > first > >> half of the threads are stripped so it’s just grabbing with the back > half. > >> Think I should clean it up real good and used either red or blue > locktite? > >> What about JB welding it? What about running a tap down the hole to > clean > >> it up? Anybody know what size it would be or if that would even > work? > See > >> photos and video below. > >> > >> https://youtu.be/cWiG0ihny0M > >> > >> > >> > >> Sent from my iPhone > >> ___ > >> http://www.okiebenz.com > >> > >> To search list archives http://www.okiebenz.com/archive/ > >> > >> To Unsubscribe or change delivery options go to: >
Re: [MBZ] 606 semi stripped belt tensioner hole
Axle grease in the drill flutes and in the thread tap catches the shavings. I've never had an issue with shavings remaining if I do that. Work slowly! Allan Kaleb Striplin via Mercedes writes: > The hike opens up into the timing chain cavity. There would be a worry about > getting metal chips falling down into the engine. > > Sent from my iPhone > >> On Oct 25, 2020, at 9:35 PM, G Mann via Mercedes >> wrote: >> >> You have the threaded bolt that fits the hole. Use it to determine the >> thread count and pitch.. Perfect match. >> >> That should be a blind bottom hole. Use the Helicoil taps that will come >> with the kit for that hole size and thread match. >> Use wheel bearing grease to fill the lands of the tap. that will capture >> most of the material removed... When re tapping the hole, back the tap out >> and clean the grease out with the thread shavings. Carb cleaner spray >> works, tap held in a cardboard box and safety glasses.. Spray down the tap >> hole with carb cleaner to carry the chips out, hit it with a shop vac for a >> bit, recoat the tap with grease and gently continue threading to match the >> heilcoil thread insert.. Repeat as necessary to gently make a new set of >> threads for the insert. >> Carefully install insert threads with the kit tool... PER INSTRUCTIONS >> break off the bottom tang of the insert [this is what screws the new insert >> into position... >> If you followed the kit instructions, you then have NEW threads, and the >> pulley bolt will torque to spec and bottom to the location flange built >> into the bolt. >> >> Good luck. >> ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 606 semi stripped belt tensioner hole
The hike opens up into the timing chain cavity. There would be a worry about getting metal chips falling down into the engine. Sent from my iPhone > On Oct 25, 2020, at 9:35 PM, G Mann via Mercedes > wrote: > > You have the threaded bolt that fits the hole. Use it to determine the > thread count and pitch.. Perfect match. > > That should be a blind bottom hole. Use the Helicoil taps that will come > with the kit for that hole size and thread match. > Use wheel bearing grease to fill the lands of the tap. that will capture > most of the material removed... When re tapping the hole, back the tap out > and clean the grease out with the thread shavings. Carb cleaner spray > works, tap held in a cardboard box and safety glasses.. Spray down the tap > hole with carb cleaner to carry the chips out, hit it with a shop vac for a > bit, recoat the tap with grease and gently continue threading to match the > heilcoil thread insert.. Repeat as necessary to gently make a new set of > threads for the insert. > Carefully install insert threads with the kit tool... PER INSTRUCTIONS > break off the bottom tang of the insert [this is what screws the new insert > into position... > If you followed the kit instructions, you then have NEW threads, and the > pulley bolt will torque to spec and bottom to the location flange built > into the bolt. > > Good luck. > >> On Sun, Oct 25, 2020 at 2:04 PM Kaleb Striplin via Mercedes < >> mercedes@okiebenz.com> wrote: >> >> Any idea what size helicoil it would be? >> >>> On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: >>> Time for a Helicoil thread repair kit. >>> That mounting is a high stress area, with a repeated high failure rate.. >> It >>> needs full thread contact and regular inspection of the bolt for working >>> loose. >>> >>> Spend the money and time to repair the thread, It should last for a good >>> while... Don't repair it, just kluge it with JB or something, and when it >>> lets go and the pulley/ belt/ fan eats whatever is handy at highway >>> speed... you get to buy lots of new parts and labor... >>> >>> Your call... Helicoil repair kit would be mine.. >>> >>> On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < >>> mercedes@okiebenz.com> wrote: >>> Working on my fathers 98 e300 doing routine maintenance. Noticed the >> belt tensioner was cockeyed. Typical. On this car the tensioner was loose >> with the PO and he I believe used some lock tight and tightened it back down. The threads were somewhat stripped out. I was aware at some point it >> could become an issue. When I removed the bolt it was tight, not loose so I’m sure the tensioner is just worn out. When I go to replace it I don’t >> think I’m going to be able to crank down on it like normal. It appears the >> first half of the threads are stripped so it’s just grabbing with the back >> half. Think I should clean it up real good and used either red or blue >> locktite? What about JB welding it? What about running a tap down the hole to >> clean it up? Anybody know what size it would be or if that would even work? >> See photos and video below. https://youtu.be/cWiG0ihny0M Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> ___ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> >> > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 606 semi stripped belt tensioner hole
You have the threaded bolt that fits the hole. Use it to determine the thread count and pitch.. Perfect match. That should be a blind bottom hole. Use the Helicoil taps that will come with the kit for that hole size and thread match. Use wheel bearing grease to fill the lands of the tap. that will capture most of the material removed... When re tapping the hole, back the tap out and clean the grease out with the thread shavings. Carb cleaner spray works, tap held in a cardboard box and safety glasses.. Spray down the tap hole with carb cleaner to carry the chips out, hit it with a shop vac for a bit, recoat the tap with grease and gently continue threading to match the heilcoil thread insert.. Repeat as necessary to gently make a new set of threads for the insert. Carefully install insert threads with the kit tool... PER INSTRUCTIONS break off the bottom tang of the insert [this is what screws the new insert into position... If you followed the kit instructions, you then have NEW threads, and the pulley bolt will torque to spec and bottom to the location flange built into the bolt. Good luck. On Sun, Oct 25, 2020 at 2:04 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: > Any idea what size helicoil it would be? > > On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: > > Time for a Helicoil thread repair kit. > > That mounting is a high stress area, with a repeated high failure rate.. > It > > needs full thread contact and regular inspection of the bolt for working > > loose. > > > > Spend the money and time to repair the thread, It should last for a good > > while... Don't repair it, just kluge it with JB or something, and when it > > lets go and the pulley/ belt/ fan eats whatever is handy at highway > > speed... you get to buy lots of new parts and labor... > > > > Your call... Helicoil repair kit would be mine.. > > > > On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < > > mercedes@okiebenz.com> wrote: > > > >> Working on my fathers 98 e300 doing routine maintenance. Noticed the > belt > >> tensioner was cockeyed. Typical. On this car the tensioner was loose > with > >> the PO and he I believe used some lock tight and tightened it back down. > >> The threads were somewhat stripped out. I was aware at some point it > could > >> become an issue. When I removed the bolt it was tight, not loose so I’m > >> sure the tensioner is just worn out. When I go to replace it I don’t > think > >> I’m going to be able to crank down on it like normal. It appears the > first > >> half of the threads are stripped so it’s just grabbing with the back > half. > >> Think I should clean it up real good and used either red or blue > locktite? > >> What about JB welding it? What about running a tap down the hole to > clean > >> it up? Anybody know what size it would be or if that would even work? > See > >> photos and video below. > >> > >> https://youtu.be/cWiG0ihny0M > >> > >> > >> > >> Sent from my iPhone > >> ___ > >> http://www.okiebenz.com > >> > >> To search list archives http://www.okiebenz.com/archive/ > >> > >> To Unsubscribe or change delivery options go to: > >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >> > >> > > ___ > > http://www.okiebenz.com > > > > To search list archives http://www.okiebenz.com/archive/ > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 606 semi stripped belt tensioner hole
My biggest concern with that is getting the hole drilled straight. Probably would need to remove the radiator to have more room to work. On 10/25/2020 5:48 PM, OK Don via Mercedes wrote: Having done all of the above, I would helicoil it. On Sun, Oct 25, 2020 at 5:43 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: I do not think I am going to helicoil it. I see the potential to make it much worse. I see several folks on the forums mentioning they just coated the threads with JB Weld and it has been fine. I also have seen this Locktite thread repair and thought about trying it. Basically you coat the bolt with a release agent, then mix the 2 part epoxy. Coat the bolt with it then run the bolt in the hole for 5 minutes. After 5 minutes, remove the bolt and then let the epoxy set for 30 minutes before then screwing the bolt in. Supposedly it it forms new threads using the bolt as the pattern. https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSEUII On 10/25/2020 5:38 PM, OK Don via Mercedes wrote: My next concern would be cleaning up the shavings after tapping and installing the helicoil. I have first hand experience with this from helicoiling a head hold down stud in a VW case once - despite out best efforts at containing and then removing the chips, the engine seized in about a mile or two. Tear-down revealed lots of aluminum shavings in the crank bearings. I read a tip on an airplane forum the other day where he recommended filling the area with shaving cream before drilling, tapping, and breaking off the tang of the helicoil, then vacuuming it out afterwards. He claimed that you get all the chips out and that the shaving cream (soap) doesn't hurt anything. I've never tried this, YMMV. It's a metric thread, use a pair of calipers and measure the diameter --- If you don't have a pair of calipers, I can recommend this set (the HF ones died early and were not repeatable) https://www.amazon.com/gp/product/B001AQEZ2W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8=1 I like them so much that I bought two, one for each side of the hangar so I'm running back and forth all the time looking for them. On Sun, Oct 25, 2020 at 4:04 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: Any idea what size helicoil it would be? On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: Time for a Helicoil thread repair kit. That mounting is a high stress area, with a repeated high failure rate.. It needs full thread contact and regular inspection of the bolt for working loose. Spend the money and time to repair the thread, It should last for a good while... Don't repair it, just kluge it with JB or something, and when it lets go and the pulley/ belt/ fan eats whatever is handy at highway speed... you get to buy lots of new parts and labor... Your call... Helicoil repair kit would be mine.. On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: Working on my fathers 98 e300 doing routine maintenance. Noticed the belt tensioner was cockeyed. Typical. On this car the tensioner was loose with the PO and he I believe used some lock tight and tightened it back down. The threads were somewhat stripped out. I was aware at some point it could become an issue. When I removed the bolt it was tight, not loose so I’m sure the tensioner is just worn out. When I go to replace it I don’t think I’m going to be able to crank down on it like normal. It appears the first half of the threads are stripped so it’s just grabbing with the back half. Think I should clean it up real good and used either red or blue locktite? What about JB welding it? What about running a tap down the hole to clean it up? Anybody know what size it would be or if that would even work? See photos and video below. https://youtu.be/cWiG0ihny0M Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To
Re: [MBZ] 606 semi stripped belt tensioner hole
Having done all of the above, I would helicoil it. On Sun, Oct 25, 2020 at 5:43 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: > I do not think I am going to helicoil it. I see the potential to make > it much worse. I see several folks on the forums mentioning they just > coated the threads with JB Weld and it has been fine. I also have seen > this Locktite thread repair and thought about trying it. Basically you > coat the bolt with a release agent, then mix the 2 part epoxy. Coat the > bolt with it then run the bolt in the hole for 5 minutes. After 5 > minutes, remove the bolt and then let the epoxy set for 30 minutes > before then screwing the bolt in. Supposedly it it forms new threads > using the bolt as the pattern. > > > https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSEUII > > > On 10/25/2020 5:38 PM, OK Don via Mercedes wrote: > > My next concern would be cleaning up the shavings after tapping and > > installing the helicoil. I have first hand experience with this from > > helicoiling a head hold down stud in a VW case once - despite out best > > efforts at containing and then removing the chips, the engine seized in > > about a mile or two. Tear-down revealed lots of aluminum shavings in the > > crank bearings. > > I read a tip on an airplane forum the other day where he > > recommended filling the area with shaving cream before drilling, tapping, > > and breaking off the tang of the helicoil, then vacuuming it out > > afterwards. He claimed that you get all the chips out and that the > shaving > > cream (soap) doesn't hurt anything. I've never tried this, YMMV. > > > > It's a metric thread, use a pair of calipers and measure the diameter --- > > If you don't have a pair of calipers, I can recommend this set (the HF > ones > > died early and were not repeatable) > > > https://www.amazon.com/gp/product/B001AQEZ2W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8=1 > > I like them so much that I bought two, one for each side of the hangar so > > I'm running back and forth all the time looking for them. > > > > On Sun, Oct 25, 2020 at 4:04 PM Kaleb Striplin via Mercedes < > > mercedes@okiebenz.com> wrote: > > > >> Any idea what size helicoil it would be? > >> > >> On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: > >>> Time for a Helicoil thread repair kit. > >>> That mounting is a high stress area, with a repeated high failure > rate.. > >> It > >>> needs full thread contact and regular inspection of the bolt for > working > >>> loose. > >>> > >>> Spend the money and time to repair the thread, It should last for a > good > >>> while... Don't repair it, just kluge it with JB or something, and when > it > >>> lets go and the pulley/ belt/ fan eats whatever is handy at highway > >>> speed... you get to buy lots of new parts and labor... > >>> > >>> Your call... Helicoil repair kit would be mine.. > >>> > >>> On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < > >>> mercedes@okiebenz.com> wrote: > >>> > Working on my fathers 98 e300 doing routine maintenance. Noticed the > >> belt > tensioner was cockeyed. Typical. On this car the tensioner was loose > >> with > the PO and he I believe used some lock tight and tightened it back > down. > The threads were somewhat stripped out. I was aware at some point it > >> could > become an issue. When I removed the bolt it was tight, not loose so > I’m > sure the tensioner is just worn out. When I go to replace it I don’t > >> think > I’m going to be able to crank down on it like normal. It appears the > >> first > half of the threads are stripped so it’s just grabbing with the back > >> half. > Think I should clean it up real good and used either red or blue > >> locktite? > What about JB welding it? What about running a tap down the hole to > >> clean > it up? Anybody know what size it would be or if that would even work? > >> See > photos and video below. > > https://youtu.be/cWiG0ihny0M > > > > Sent from my iPhone > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > >>> ___ > >>> http://www.okiebenz.com > >>> > >>> To search list archives http://www.okiebenz.com/archive/ > >>> > >>> To Unsubscribe or change delivery options go to: > >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>> > >> ___ > >> http://www.okiebenz.com > >> > >> To search list archives http://www.okiebenz.com/archive/ > >> > >> To Unsubscribe or change delivery options go to: > >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >> > >> > > ___ >
Re: [MBZ] 606 semi stripped belt tensioner hole
I do not think I am going to helicoil it. I see the potential to make it much worse. I see several folks on the forums mentioning they just coated the threads with JB Weld and it has been fine. I also have seen this Locktite thread repair and thought about trying it. Basically you coat the bolt with a release agent, then mix the 2 part epoxy. Coat the bolt with it then run the bolt in the hole for 5 minutes. After 5 minutes, remove the bolt and then let the epoxy set for 30 minutes before then screwing the bolt in. Supposedly it it forms new threads using the bolt as the pattern. https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSEUII On 10/25/2020 5:38 PM, OK Don via Mercedes wrote: My next concern would be cleaning up the shavings after tapping and installing the helicoil. I have first hand experience with this from helicoiling a head hold down stud in a VW case once - despite out best efforts at containing and then removing the chips, the engine seized in about a mile or two. Tear-down revealed lots of aluminum shavings in the crank bearings. I read a tip on an airplane forum the other day where he recommended filling the area with shaving cream before drilling, tapping, and breaking off the tang of the helicoil, then vacuuming it out afterwards. He claimed that you get all the chips out and that the shaving cream (soap) doesn't hurt anything. I've never tried this, YMMV. It's a metric thread, use a pair of calipers and measure the diameter --- If you don't have a pair of calipers, I can recommend this set (the HF ones died early and were not repeatable) https://www.amazon.com/gp/product/B001AQEZ2W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8=1 I like them so much that I bought two, one for each side of the hangar so I'm running back and forth all the time looking for them. On Sun, Oct 25, 2020 at 4:04 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: Any idea what size helicoil it would be? On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: Time for a Helicoil thread repair kit. That mounting is a high stress area, with a repeated high failure rate.. It needs full thread contact and regular inspection of the bolt for working loose. Spend the money and time to repair the thread, It should last for a good while... Don't repair it, just kluge it with JB or something, and when it lets go and the pulley/ belt/ fan eats whatever is handy at highway speed... you get to buy lots of new parts and labor... Your call... Helicoil repair kit would be mine.. On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: Working on my fathers 98 e300 doing routine maintenance. Noticed the belt tensioner was cockeyed. Typical. On this car the tensioner was loose with the PO and he I believe used some lock tight and tightened it back down. The threads were somewhat stripped out. I was aware at some point it could become an issue. When I removed the bolt it was tight, not loose so I’m sure the tensioner is just worn out. When I go to replace it I don’t think I’m going to be able to crank down on it like normal. It appears the first half of the threads are stripped so it’s just grabbing with the back half. Think I should clean it up real good and used either red or blue locktite? What about JB welding it? What about running a tap down the hole to clean it up? Anybody know what size it would be or if that would even work? See photos and video below. https://youtu.be/cWiG0ihny0M Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 606 semi stripped belt tensioner hole
My next concern would be cleaning up the shavings after tapping and installing the helicoil. I have first hand experience with this from helicoiling a head hold down stud in a VW case once - despite out best efforts at containing and then removing the chips, the engine seized in about a mile or two. Tear-down revealed lots of aluminum shavings in the crank bearings. I read a tip on an airplane forum the other day where he recommended filling the area with shaving cream before drilling, tapping, and breaking off the tang of the helicoil, then vacuuming it out afterwards. He claimed that you get all the chips out and that the shaving cream (soap) doesn't hurt anything. I've never tried this, YMMV. It's a metric thread, use a pair of calipers and measure the diameter --- If you don't have a pair of calipers, I can recommend this set (the HF ones died early and were not repeatable) https://www.amazon.com/gp/product/B001AQEZ2W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8=1 I like them so much that I bought two, one for each side of the hangar so I'm running back and forth all the time looking for them. On Sun, Oct 25, 2020 at 4:04 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: > Any idea what size helicoil it would be? > > On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: > > Time for a Helicoil thread repair kit. > > That mounting is a high stress area, with a repeated high failure rate.. > It > > needs full thread contact and regular inspection of the bolt for working > > loose. > > > > Spend the money and time to repair the thread, It should last for a good > > while... Don't repair it, just kluge it with JB or something, and when it > > lets go and the pulley/ belt/ fan eats whatever is handy at highway > > speed... you get to buy lots of new parts and labor... > > > > Your call... Helicoil repair kit would be mine.. > > > > On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < > > mercedes@okiebenz.com> wrote: > > > >> Working on my fathers 98 e300 doing routine maintenance. Noticed the > belt > >> tensioner was cockeyed. Typical. On this car the tensioner was loose > with > >> the PO and he I believe used some lock tight and tightened it back down. > >> The threads were somewhat stripped out. I was aware at some point it > could > >> become an issue. When I removed the bolt it was tight, not loose so I’m > >> sure the tensioner is just worn out. When I go to replace it I don’t > think > >> I’m going to be able to crank down on it like normal. It appears the > first > >> half of the threads are stripped so it’s just grabbing with the back > half. > >> Think I should clean it up real good and used either red or blue > locktite? > >> What about JB welding it? What about running a tap down the hole to > clean > >> it up? Anybody know what size it would be or if that would even work? > See > >> photos and video below. > >> > >> https://youtu.be/cWiG0ihny0M > >> > >> > >> > >> Sent from my iPhone > >> ___ > >> http://www.okiebenz.com > >> > >> To search list archives http://www.okiebenz.com/archive/ > >> > >> To Unsubscribe or change delivery options go to: > >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >> > >> > > ___ > > http://www.okiebenz.com > > > > To search list archives http://www.okiebenz.com/archive/ > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don "Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain “Basic research is what I’m doing when I don’t know what I am doing.” Wernher Von Braun 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 606 semi stripped belt tensioner hole
Any idea what size helicoil it would be? On 10/25/2020 4:01 PM, G Mann via Mercedes wrote: Time for a Helicoil thread repair kit. That mounting is a high stress area, with a repeated high failure rate.. It needs full thread contact and regular inspection of the bolt for working loose. Spend the money and time to repair the thread, It should last for a good while... Don't repair it, just kluge it with JB or something, and when it lets go and the pulley/ belt/ fan eats whatever is handy at highway speed... you get to buy lots of new parts and labor... Your call... Helicoil repair kit would be mine.. On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: Working on my fathers 98 e300 doing routine maintenance. Noticed the belt tensioner was cockeyed. Typical. On this car the tensioner was loose with the PO and he I believe used some lock tight and tightened it back down. The threads were somewhat stripped out. I was aware at some point it could become an issue. When I removed the bolt it was tight, not loose so I’m sure the tensioner is just worn out. When I go to replace it I don’t think I’m going to be able to crank down on it like normal. It appears the first half of the threads are stripped so it’s just grabbing with the back half. Think I should clean it up real good and used either red or blue locktite? What about JB welding it? What about running a tap down the hole to clean it up? Anybody know what size it would be or if that would even work? See photos and video below. https://youtu.be/cWiG0ihny0M Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 606 semi stripped belt tensioner hole
Time for a Helicoil thread repair kit. That mounting is a high stress area, with a repeated high failure rate.. It needs full thread contact and regular inspection of the bolt for working loose. Spend the money and time to repair the thread, It should last for a good while... Don't repair it, just kluge it with JB or something, and when it lets go and the pulley/ belt/ fan eats whatever is handy at highway speed... you get to buy lots of new parts and labor... Your call... Helicoil repair kit would be mine.. On Sun, Oct 25, 2020 at 1:52 PM Kaleb Striplin via Mercedes < mercedes@okiebenz.com> wrote: > Working on my fathers 98 e300 doing routine maintenance. Noticed the belt > tensioner was cockeyed. Typical. On this car the tensioner was loose with > the PO and he I believe used some lock tight and tightened it back down. > The threads were somewhat stripped out. I was aware at some point it could > become an issue. When I removed the bolt it was tight, not loose so I’m > sure the tensioner is just worn out. When I go to replace it I don’t think > I’m going to be able to crank down on it like normal. It appears the first > half of the threads are stripped so it’s just grabbing with the back half. > Think I should clean it up real good and used either red or blue locktite? > What about JB welding it? What about running a tap down the hole to clean > it up? Anybody know what size it would be or if that would even work? See > photos and video below. > > https://youtu.be/cWiG0ihny0M > > > > Sent from my iPhone > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] 606 semi stripped belt tensioner hole
Working on my fathers 98 e300 doing routine maintenance. Noticed the belt tensioner was cockeyed. Typical. On this car the tensioner was loose with the PO and he I believe used some lock tight and tightened it back down. The threads were somewhat stripped out. I was aware at some point it could become an issue. When I removed the bolt it was tight, not loose so I’m sure the tensioner is just worn out. When I go to replace it I don’t think I’m going to be able to crank down on it like normal. It appears the first half of the threads are stripped so it’s just grabbing with the back half. Think I should clean it up real good and used either red or blue locktite? What about JB welding it? What about running a tap down the hole to clean it up? Anybody know what size it would be or if that would even work? See photos and video below. https://youtu.be/cWiG0ihny0M Sent from my iPhone ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
