Re: [MBZ] 92 300E Eating Serpentine Belta?
On Dec 3, 2012 1:29 PM, Dan Penoff dan d...@penoff.com@ d...@penoff.com penoff.com d...@penoff.com wrote: thinking that since everything the belt drives is attached to the engine in some fashion it wouldn't affect the belt. You've still got some extra side stress on the belt if the impact isn't being properly dampened. I wouldn't expect it to injure the belt unless it got to jumping, but over six months or a year maybe the stress of getting pushed up the pulleys could add up. The contrary to this is that you'd probably have noticed the mounts were bad, if they were that bad... A burr or offset or loose pulley would make more sense, just trying to think of what else if those don't pan out. Best, Tim ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
On Dec 3, 2012 1:29 PM, Dan Penoff dan d...@penoff.com@ d...@penoff.com penoff.com d...@penoff.com wrote: thinking that since everything the belt drives is attached to the engine in some fashion it wouldn't affect the belt. You've still got some extra side stress on the belt if the impact isn't being properly dampened. I wouldn't expect it to injure the belt unless it got to jumping, but over six months or a year maybe the stress of getting pushed up the pulleys could add up. The contrary to this is that you'd probably have noticed the mounts were bad, if they were that bad... A burr or offset or loose pulley would make more sense, just trying to think of what else if those don't pan out. Best, Tim ___ My vote is for a pulley mounted backwards, assuming the tensioner bearing is ok. ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
On 03/12/2012 5:21 PM, Peter Frederick wrote: Check the fan pulley, it can be put on wrong way round (and the water pump pulley, if I remember correctly). The difference is just about 1 and one half ribs, so eventually the belt shreds on one side (the rear on my brother's car) and works fine so long as you don't mind the mess. The difference is small enough it's hard to see. Peter ___ I had that issue on a Toyota 4Runner. It did not eat the belt but it was noisy and would squeal on turns. Discovered the fan pulley was on backwards. It had had a timing belt change not long before I got it and I guess they got in wrong on re-assembly. Randy ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
On 03/12/2012 7:03 PM, Dieselhead wrote: What if said cheaper accessory seizes? When it's belt driven, it only breaks a belt I've seen this happen more than once with a/c and alternators. Luther KB5QHUForest Park, IL '98 ML320 Max (159,xxx mi) Uh.that is what shear pins or shear bolts are for. Every powered boat has at least one. ___ They used to. Some of the smallest engines may still use that method. I think now, they mostly rely upon the rubber hub in the propeller to absorb the impact and give way. An I/O will also generally have a rubber insert in the coupler on the flywheel where the driveshaft to the outdrive connects to the engine. Randy ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Eldest son comes to me on Saturday and says the belt on his car started shredding Friday night. We replaced said belt for the exact same reason a good 6-8 months ago which up until now has been fine. When we replaced the belt the last time I made a point of inspecting all of the pulleys to make sure there were no burrs or damage, and none was found. I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Any suggestions as to what might might be causing this? Dan ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
One of the pulleys offset from the others, or the tensioner has tilted off at an angle? Mitch. ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Pulleys lined up correctly? Something cockeyed? Pulley runs true? All elements tight? --R On 12/3/12 10:26 AM, Dan Penoff wrote: Eldest son comes to me on Saturday and says the belt on his car started shredding Friday night. We replaced said belt for the exact same reason a good 6-8 months ago which up until now has been fine. When we replaced the belt the last time I made a point of inspecting all of the pulleys to make sure there were no burrs or damage, and none was found. I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Any suggestions as to what might might be causing this? Dan ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Everything appears to be tight and lined up. No slop in any of the pulleys that I could find. Dan On Dec 3, 2012, at 11:14 AM, Rich Thomas richthomas79td...@constructivity.net wrote: Pulleys lined up correctly? Something cockeyed? Pulley runs true? All elements tight? --R On 12/3/12 10:26 AM, Dan Penoff wrote: Eldest son comes to me on Saturday and says the belt on his car started shredding Friday night. We replaced said belt for the exact same reason a good 6-8 months ago which up until now has been fine. When we replaced the belt the last time I made a point of inspecting all of the pulleys to make sure there were no burrs or damage, and none was found. I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Any suggestions as to what might might be causing this? Dan ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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 For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Watch the belt while cranking the engine without starting it. Use a different brand of belt when replacing it if no problem is seen. A dial indicator rubbing on the side and the belt contact area of each slowly turned pulley with the belt off will sometimes diagnose a hidden problem. Incorrect belt tension can also cause problems. Gerrywho prefers chains or gears. From: Dan Penoff d...@penoff.com Everything appears to be tight and lined up. No slop in any of the pulleys that I could find. Dan On Dec 3, 2012, at 11:14 AM, Rich Thomas richthomas79td...@constructivity.net wrote: Pulleys lined up correctly? Something cockeyed? Pulley runs true? All elements tight? --R On 12/3/12 10:26 AM, Dan Penoff wrote: Eldest son comes to me on Saturday and says the belt on his car started shredding Friday night. We replaced said belt for the exact same reason a good 6-8 months ago which up until now has been fine. When we replaced the belt the last time I made a point of inspecting all of the pulleys to make sure there were no burrs or damage, and none was found. I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Any suggestions as to what might might be causing this? Dan ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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 For new and used parts go to 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2634/5434 - Release Date: 12/03/12 ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
On Dec 3, 2012 9:21 AM, Gerry Archer arche...@embarqmail.com wrote: Gerrywho prefers chains or gears. Hmm. There are of course plenty of cars out there with chain-driven cams, and a few with gear-driven ones... but was an engine ever made with no belts at all? I.e., all accessories chain- or gear- driven? (Not counting motorcycle engines since they don't have any accessories to speak of.) Alex ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Maybe one of the pulleys is out is alignment causing belt to ride over the edge of the pulley? Sent from my iPhone On Dec 3, 2012, at 9:26 AM, Dan Penoff d...@penoff.com wrote: Eldest son comes to me on Saturday and says the belt on his car started shredding Friday night. We replaced said belt for the exact same reason a good 6-8 months ago which up until now has been fine. When we replaced the belt the last time I made a point of inspecting all of the pulleys to make sure there were no burrs or damage, and none was found. I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Any suggestions as to what might might be causing this? Dan ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Is there a tensioning pulley out of alignment? Any oil or other fluid leaks? They can weaken the belt so it wears out faster. -- Max Dillon Charleston SC '95 E300 '87 300TD Dan Penoff d...@penoff.com wrote: Eldest son comes to me on Saturday and says the belt on his car started shredding Friday night. We replaced said belt for the exact same reason a good 6-8 months ago which up until now has been fine. When we replaced the belt the last time I made a point of inspecting all of the pulleys to make sure there were no burrs or damage, and none was found. I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Any suggestions as to what might might be causing this? Dan ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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] 92 300E Eating Serpentine Belta?
On Dec 3, 2012 11:43 AM, Dan Penoff d...@penoff.com wrote: Everything appears to be tight and lined up. No slop in any of the pulleys that I could find. Total guess, but bad engine mounts leading to shake at idle? Or, does son usually drive with windows down in summer? Might the compressor pulley be shaking slightly under load? Best, Tim ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
On Dec 3, 2012 9:21 AM, Gerry Archer arche...@embarqmail.com wrote: Gerrywho prefers chains or gears. Hmm. There are of course plenty of cars out there with chain-driven cams, and a few with gear-driven ones... but was an engine ever made with no belts at all? I.e., all accessories chain- or gear- driven? (Not counting motorcycle engines since they don't have any accessories to speak of.) Alex .. I recall a big truck engine neighbor truck driver mentioned on which there were no belts. IIRC there were problems related to the air compressor and/or water pump. In this case I was referring to cam driving belts. V belts seem to be more forgiving of misalignment. I wouldn't mind having a car with flat belts so long as a broken belt didn't destroy the engine. (Don't remember the name of that type engine.) Gerry ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
On Mon, 3 Dec 2012 13:04:25 -0500 Gerry Archer arche...@embarqmail.com wrote: I wouldn't mind having a car with flat belts so long as a broken belt didn't destroy the engine. (Don't remember the name of that type engine.) Gerry Non-interference. With interference engines, the pistons will hit the valves if the camshaft is not rotating properly. Craig ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Car shake at idle? --R On 12/3/12 1:13 PM, Tim C wrote: Total guess, but bad engine mounts leading to shake at idle? ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
This is an interesting question, as he mention it happening when it immediately following going over some sort of bump in a driveway... I dismissed this, thinking that since everything the belt drives is attached to the engine in some fashion it wouldn't affect the belt. Could I be wrong? Dan On Dec 3, 2012, at 1:13 PM, Tim C bb...@crone.us wrote: On Dec 3, 2012 11:43 AM, Dan Penoff d...@penoff.com wrote: Everything appears to be tight and lined up. No slop in any of the pulleys that I could find. Total guess, but bad engine mounts leading to shake at idle? Or, does son usually drive with windows down in summer? Might the compressor pulley be shaking slightly under load? Best, Tim ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Is there anything near the belt that could move and bump the edge of it when the car flexes a bit? Randy On 03/12/2012 12:29 PM, Dan Penoff wrote: This is an interesting question, as he mention it happening when it immediately following going over some sort of bump in a driveway... I dismissed this, thinking that since everything the belt drives is attached to the engine in some fashion it wouldn't affect the belt. Could I be wrong? Dan On Dec 3, 2012, at 1:13 PM, Tim C bb...@crone.us wrote: On Dec 3, 2012 11:43 AM, Dan Penoff d...@penoff.com wrote: Everything appears to be tight and lined up. No slop in any of the pulleys that I could find. Total guess, but bad engine mounts leading to shake at idle? Or, does son usually drive with windows down in summer? Might the compressor pulley be shaking slightly under load? Best, Tim ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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 For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Not sure - I'll have to take a closer look. What is interesting is his comment about hitting a bump in this person's driveway and then the belt shredding. As one might expect, a small piece came loose and started whipping around. Thankfully, he's smart enough to shut off the engine and investigate. He cut off the loose part and picked the threads that were stuck around the engine off. Dan On Dec 3, 2012, at 3:19 PM, Randy Bennell rbenn...@bennell.ca wrote: Is there anything near the belt that could move and bump the edge of it when the car flexes a bit? Randy On 03/12/2012 12:29 PM, Dan Penoff wrote: This is an interesting question, as he mention it happening when it immediately following going over some sort of bump in a driveway... I dismissed this, thinking that since everything the belt drives is attached to the engine in some fashion it wouldn't affect the belt. Could I be wrong? Dan On Dec 3, 2012, at 1:13 PM, Tim C bb...@crone.us wrote: On Dec 3, 2012 11:43 AM, Dan Penoff d...@penoff.com wrote: Everything appears to be tight and lined up. No slop in any of the pulleys that I could find. Total guess, but bad engine mounts leading to shake at idle? Or, does son usually drive with windows down in summer? Might the compressor pulley be shaking slightly under load? Best, Tim ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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 For new and used parts go to 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 For new and used parts go to 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] 92 300E Eating Serpentine Belta?
On Dec 3, 2012 9:21 AM, Gerry Archer arche...@embarqmail.com wrote: Gerrywho prefers chains or gears. Hmm. There are of course plenty of cars out there with chain-driven cams, and a few with gear-driven ones... but was an engine ever made with no belts at all? I.e., all accessories chain- or gear- driven? (Not counting motorcycle engines since they don't have any accessories to speak of.) Alex BMW airhead motorcycles have accessories that are not belt driven, alternator and starter. Alt is direct drive off the cam, and the cam is chain driven, and that chain is a high mileage item. MB postwar at least engines with distributors have a gear drive off the timing chain that also drives the oil pump Many trucks have accessory drives for air compressors and such (even though they use belts for alternator and such) I have often wondered why auto accessories are not gear/chain driven, other than custom (and bean counters). VW vs MB shows why a chain is preferable, at least for camshaft. ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
What if said cheaper accessory seizes? When it's belt driven, it only breaks a belt I've seen this happen more than once with a/c and alternators. Luther KB5QHUForest Park, IL '98 ML320 Max (159,xxx mi) On 12/3/2012 3:07 PM, Dieselhead wrote: On Dec 3, 2012 9:21 AM, Gerry Archer arche...@embarqmail.com wrote: Gerrywho prefers chains or gears. Hmm. There are of course plenty of cars out there with chain-driven cams, and a few with gear-driven ones... but was an engine ever made with no belts at all? I.e., all accessories chain- or gear- driven? (Not counting motorcycle engines since they don't have any accessories to speak of.) Alex BMW airhead motorcycles have accessories that are not belt driven, alternator and starter. Alt is direct drive off the cam, and the cam is chain driven, and that chain is a high mileage item. MB postwar at least engines with distributors have a gear drive off the timing chain that also drives the oil pump Many trucks have accessory drives for air compressors and such (even though they use belts for alternator and such) I have often wondered why auto accessories are not gear/chain driven, other than custom (and bean counters). VW vs MB shows why a chain is preferable, at least for camshaft. ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Check the fan pulley, it can be put on wrong way round (and the water pump pulley, if I remember correctly). The difference is just about 1 and one half ribs, so eventually the belt shreds on one side (the rear on my brother's car) and works fine so long as you don't mind the mess. The difference is small enough it's hard to see. Peter ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
The fan is out of whack and slowly nicking bits of the belt until you get a failure condition clay On Dec 3, 2012, at 7:26 AM, Dan Penoff wrote: Eldest son comes to me on Saturday and says the belt on his car started shredding Friday night. We replaced said belt for the exact same reason a good 6-8 months ago which up until now has been fine. When we replaced the belt the last time I made a point of inspecting all of the pulleys to make sure there were no burrs or damage, and none was found. I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Any suggestions as to what might might be causing this? Dan ___ http://www.okiebenz.com For new and used parts go to 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 For new and used parts go to 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] 92 300E Eating Serpentine Belta?
What if said cheaper accessory seizes? When it's belt driven, it only breaks a belt I've seen this happen more than once with a/c and alternators. Luther KB5QHUForest Park, IL '98 ML320 Max (159,xxx mi) Uh.that is what shear pins or shear bolts are for. Every powered boat has at least one. ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
No experience with these kinds of belts, but had a problem once with metal gears where the bearings did not last. Finally checked between the teeth on every gear and found debris that had been flattened so much it was not obvious on casual inspection. Scraped it out and the bearing problem was solved. Could there be debris between the pulley teeth on the Focus; possibly left over from a previous belt failure? Gerry From: Dan Penoff d...@penoff.com Not sure - I'll have to take a closer look. What is interesting is his comment about hitting a bump in this person's driveway and then the belt shredding. As one might expect, a small piece came loose and started whipping around. Thankfully, he's smart enough to shut off the engine and investigate. He cut off the loose part and picked the threads that were stuck around the engine off. Dan On Dec 3, 2012, at 3:19 PM, Randy Bennell rbenn...@bennell.ca wrote: Is there anything near the belt that could move and bump the edge of it when the car flexes a bit? Randy On 03/12/2012 12:29 PM, Dan Penoff wrote: This is an interesting question, as he mention it happening when it immediately following going over some sort of bump in a driveway... I dismissed this, thinking that since everything the belt drives is attached to the engine in some fashion it wouldn't affect the belt. Could I be wrong? Dan On Dec 3, 2012, at 1:13 PM, Tim C bb...@crone.us wrote: On Dec 3, 2012 11:43 AM, Dan Penoff d...@penoff.com wrote: Everything appears to be tight and lined up. No slop in any of the pulleys that I could find. Total guess, but bad engine mounts leading to shake at idle? Or, does son usually drive with windows down in summer? Might the compressor pulley be shaking slightly under load? Best, Tim ___ ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Someone is getting confused. No mention of a Focus - this is a 1992 300E. Dan On Dec 3, 2012, at 8:37 PM, Gerry Archer wrote: No experience with these kinds of belts, but had a problem once with metal gears where the bearings did not last. Finally checked between the teeth on every gear and found debris that had been flattened so much it was not obvious on casual inspection. Scraped it out and the bearing problem was solved. Could there be debris between the pulley teeth on the Focus; possibly left over from a previous belt failure? Gerry From: Dan Penoff d...@penoff.com Not sure - I'll have to take a closer look. What is interesting is his comment about hitting a bump in this person's driveway and then the belt shredding. As one might expect, a small piece came loose and started whipping around. Thankfully, he's smart enough to shut off the engine and investigate. He cut off the loose part and picked the threads that were stuck around the engine off. Dan ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
Dan, Disconcerting to hear- I'd replaced that belt ROUGHLY a year before you bought it. The interesting thing was I'd been getting an occasional squeak so I got a Continental replacement; found that the belt on the car (which had about 30k miles/2 years) showed signs of imminent failure with chunks of individual ribs gone and cracking throughout where ribs were still present. But I'd not seen a belt fail that quickly and that dramatically before. When you mentioned replacement of the belt I'd replaced it sounded strange. I assume you've taken a straightedge to the idler pulley face? The idler assy was replace in the year b/f I bought the car, but that means it's from 2006 or so. You've checked for nicks; I can't think of anything else. Other than re-checking all pulleys to be true- I've had the pulley off the crank, p/s, water pump (and tensioner when I did the head gasket) back about 2007. The only other thing I can think of is Conti quality has gone away, but we would have heard of that by now, right? Tony Wirtel From: Dan Penoff d...@penoff.com To: Mercedes List mercedes@okiebenz.com Subject: [MBZ] 92 300E Eating Serpentine Belta? Message-ID: 2c336742-bfea-4955-87a2-1053acf9b...@penoff.com Content-Type: text/plain; charset=us-ascii Eldest son comes to me on Saturday and says the belt on his car started shredding Friday night. We replaced said belt for the exact same reason a good 6-8 months ago which up until now has been fine. When we replaced the belt the last time I made a point of inspecting all of the pulleys to make sure there were no burrs or damage, and none was found. I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Any suggestions as to what might might be causing this? Dan ___ http://www.okiebenz.com For new and used parts go to 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] 92 300E Eating Serpentine Belta?
I looked at the belt and saw that just as it had before, the belt had shredded just a small portion, maybe 1/8 on the inboard edge. The rest of the belt is intact and undamaged. Belt alignment? Specifically any angle on an idler pulley, or perhaps an alternator with incorrect spacers? -- Jim ___ http://www.okiebenz.com For new and used parts go to 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
