Re: [MBZ] It’s like a whole new Bob!
I'm glad this made a big difference!! More than you want to know about adjusting the linkage is here: https://www.startekinfo.com/StarTek/outside/12265/disc_2/program/Engine/617/30-300.pdf This is really useful if someone has seriously messed things up and you need to get back to a base line. Note section C is where the 300D turbo is referenced. The biggest issues I've found is that you no longer reach the full load stop on the injection pump. That is, with your foot to the floor, you don't make it to the max stop at the pump linkage. Have a look at this, as it can make a big difference in the amount of go. As mentioned, the clunk can be vacuum. Can also be a flex disc which is sloppy. You can check this by driving on flat ground ~40mph... if you press and release the accelerator to load and unload the drive shaft and hear a clunk each time, then you have to look at the driveshaft/flex discs. If its really only on downshift, then its likely a vacuum leak. Jaime On Fri, Oct 4, 2019 at 4:32 PM Don Snook via Mercedes wrote: > The Bowden cable was sort of the issue. The linkage was not placed > corrected. When the throttle linkage moved, it was not pulling the cable at > all. I clicked it over and it was like EUREKA! So, I just went for a > drive and it downshifted, it delayed upshift as I was accelerating and it > shifted into third! It’s like a rocket by comparison. Really! > > So, the transmission was not shifting due to any input from the throttle. > It was simply shifting based on a rev limit. So, it didn’t know I was > accelerating and it never made it to third because I didn’t ever reach the > rev limit for 4th. > > WOW! You guys are great! Thanks so much to Jamie and Meade!!! > > Now, I need to figure out the big clunk when it downshifts when I’m > slowing down. Is that some sort of transmission mount? > > Donald H. Snook > > ___ > 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 > > -- Jaime Kopchinski http://www.jaimekop.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] It’s like a whole new Bob!
If (when?) I get another MB diesel I'll go through and replace all the drive line and suspension rubber first thing, unless its all perfect already I suppose. I HATE fighting through the components one at a time as they fail, I'd rather just have one marathon repair fest and get it over with... -Curt On Friday, October 4, 2019, 4:39:46 PM EDT, Meade Dillon via Mercedes wrote: Bravo! Jaime gets the credit - he nailed it. Clunk - I really don't remember enough about the 123 to offer much, definitely could be a mount or maybe a flex disc? Marshall Booth sometimes would advise whole-sale replacement of all the rubber in the driveline, from the engine mounts all the way back to the differential mounts, if they were more than ten years old. Might be money well spent if you want a really smooth and quiet ride, but there are other things to do as well for a smooth ride like injector balancing. - Max Charleston SC On Fri, Oct 4, 2019 at 4:32 PM Don Snook via Mercedes wrote: > The Bowden cable was sort of the issue. The linkage was not placed > corrected. When the throttle linkage moved, it was not pulling the cable at > all. I clicked it over and it was like EUREKA! So, I just went for a > drive and it downshifted, it delayed upshift as I was accelerating and it > shifted into third! It’s like a rocket by comparison. Really! > > So, the transmission was not shifting due to any input from the throttle. > It was simply shifting based on a rev limit. So, it didn’t know I was > accelerating and it never made it to third because I didn’t ever reach the > rev limit for 4th. > > WOW! You guys are great! Thanks so much to Jamie and Meade!!! > > Now, I need to figure out the big clunk when it downshifts when I’m > slowing down. Is that some sort of transmission mount? > > Donald H. Snook > > ___ > 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] It’s like a whole new Bob!
Downshift clunk is typically related to vacuum. -D > On Oct 4, 2019, at 5:05 PM, Andrew Strasfogel via Mercedes > wrote: > > The transmission mount needs to be replaced from time to time so please > check it ASAP to at least rule that out. Not a difficult or expensive > job.. > > On Fri, Oct 4, 2019 at 4:39 PM Meade Dillon via Mercedes < > mercedes@okiebenz.com> wrote: > >> Bravo! Jaime gets the credit - he nailed it. >> >> Clunk - I really don't remember enough about the 123 to offer much, >> definitely could be a mount or maybe a flex disc? >> >> Marshall Booth sometimes would advise whole-sale replacement of all the >> rubber in the driveline, from the engine mounts all the way back to the >> differential mounts, if they were more than ten years old. Might be money >> well spent if you want a really smooth and quiet ride, but there are other >> things to do as well for a smooth ride like injector balancing. >> - >> Max >> Charleston SC >> >> >> On Fri, Oct 4, 2019 at 4:32 PM Don Snook via Mercedes < >> mercedes@okiebenz.com> >> wrote: >> >>> The Bowden cable was sort of the issue. The linkage was not placed >>> corrected. When the throttle linkage moved, it was not pulling the cable >> at >>> all. I clicked it over and it was like EUREKA! So, I just went for a >>> drive and it downshifted, it delayed upshift as I was accelerating and >> it >>> shifted into third! It’s like a rocket by comparison. Really! >>> >>> So, the transmission was not shifting due to any input from the throttle. >>> It was simply shifting based on a rev limit. So, it didn’t know I was >>> accelerating and it never made it to third because I didn’t ever reach >> the >>> rev limit for 4th. >>> >>> WOW! You guys are great! Thanks so much to Jamie and Meade!!! >>> >>> Now, I need to figure out the big clunk when it downshifts when I’m >>> slowing down. Is that some sort of transmission mount? >>> >>> Donald H. Snook >>> >>> ___ >>> 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] It’s like a whole new Bob!
The transmission mount needs to be replaced from time to time so please check it ASAP to at least rule that out. Not a difficult or expensive job.. On Fri, Oct 4, 2019 at 4:39 PM Meade Dillon via Mercedes < mercedes@okiebenz.com> wrote: > Bravo! Jaime gets the credit - he nailed it. > > Clunk - I really don't remember enough about the 123 to offer much, > definitely could be a mount or maybe a flex disc? > > Marshall Booth sometimes would advise whole-sale replacement of all the > rubber in the driveline, from the engine mounts all the way back to the > differential mounts, if they were more than ten years old. Might be money > well spent if you want a really smooth and quiet ride, but there are other > things to do as well for a smooth ride like injector balancing. > - > Max > Charleston SC > > > On Fri, Oct 4, 2019 at 4:32 PM Don Snook via Mercedes < > mercedes@okiebenz.com> > wrote: > > > The Bowden cable was sort of the issue. The linkage was not placed > > corrected. When the throttle linkage moved, it was not pulling the cable > at > > all. I clicked it over and it was like EUREKA! So, I just went for a > > drive and it downshifted, it delayed upshift as I was accelerating and > it > > shifted into third! It’s like a rocket by comparison. Really! > > > > So, the transmission was not shifting due to any input from the throttle. > > It was simply shifting based on a rev limit. So, it didn’t know I was > > accelerating and it never made it to third because I didn’t ever reach > the > > rev limit for 4th. > > > > WOW! You guys are great! Thanks so much to Jamie and Meade!!! > > > > Now, I need to figure out the big clunk when it downshifts when I’m > > slowing down. Is that some sort of transmission mount? > > > > Donald H. Snook > > > > ___ > > 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] It’s like a whole new Bob!
Bravo! Jaime gets the credit - he nailed it. Clunk - I really don't remember enough about the 123 to offer much, definitely could be a mount or maybe a flex disc? Marshall Booth sometimes would advise whole-sale replacement of all the rubber in the driveline, from the engine mounts all the way back to the differential mounts, if they were more than ten years old. Might be money well spent if you want a really smooth and quiet ride, but there are other things to do as well for a smooth ride like injector balancing. - Max Charleston SC On Fri, Oct 4, 2019 at 4:32 PM Don Snook via Mercedes wrote: > The Bowden cable was sort of the issue. The linkage was not placed > corrected. When the throttle linkage moved, it was not pulling the cable at > all. I clicked it over and it was like EUREKA! So, I just went for a > drive and it downshifted, it delayed upshift as I was accelerating and it > shifted into third! It’s like a rocket by comparison. Really! > > So, the transmission was not shifting due to any input from the throttle. > It was simply shifting based on a rev limit. So, it didn’t know I was > accelerating and it never made it to third because I didn’t ever reach the > rev limit for 4th. > > WOW! You guys are great! Thanks so much to Jamie and Meade!!! > > Now, I need to figure out the big clunk when it downshifts when I’m > slowing down. Is that some sort of transmission mount? > > Donald H. Snook > > ___ > 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] It’s like a whole new Bob!
The Bowden cable was sort of the issue. The linkage was not placed corrected. When the throttle linkage moved, it was not pulling the cable at all. I clicked it over and it was like EUREKA! So, I just went for a drive and it downshifted, it delayed upshift as I was accelerating and it shifted into third! It’s like a rocket by comparison. Really! So, the transmission was not shifting due to any input from the throttle. It was simply shifting based on a rev limit. So, it didn’t know I was accelerating and it never made it to third because I didn’t ever reach the rev limit for 4th. WOW! You guys are great! Thanks so much to Jamie and Meade!!! Now, I need to figure out the big clunk when it downshifts when I’m slowing down. Is that some sort of transmission mount? Donald H. Snook ___ 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
