Doug&Deb Posted May 20, 2023 Report Share Posted May 20, 2023 Took the rebuilt clutch out of the Coronet today. The new disc is.025 thicker than the old one. I tried adjusting to get.060 plate departure but no joy. I ended up re-installing the old clutch assembly and adjusting to factory spec and it solved the problem. It goes against my nature to use the old clutch but it has minimal wear. Now back to driving the wheels off again. 3 Quote Link to comment Share on other sites More sharing options...
Los_Control Posted May 20, 2023 Report Share Posted May 20, 2023 Glad you got it ..... so sad that that is our future of replacement parts for classic cars. Just far to common to hear scenarios like this. I thought about this myself .... using a old clutch. I have a old engine in the corner I hope to use some day ..... It obviously had low miles on a rebuild & the clutch pressure plate is in very good condition .... I plan to run them. Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted May 21, 2023 Author Report Share Posted May 21, 2023 I’m not going to blame the vendor. He’s highly recommended and respected. It’s quite possible my mechanical incompetence is to blame. I’m definitely still learning as I go. I now have a much better understanding of how the clutch works on my car. 1 Quote Link to comment Share on other sites More sharing options...
oldodge41 Posted May 21, 2023 Report Share Posted May 21, 2023 4 hours ago, Doug&Deb said: I’m not going to blame the vendor. He’s highly recommended and respected. It’s quite possible my mechanical incompetence is to blame. I’m definitely still learning as I go. I now have a much better understanding of how the clutch works on my car. Nice response, classy for sure. 1 Quote Link to comment Share on other sites More sharing options...
Hickory Posted May 21, 2023 Report Share Posted May 21, 2023 I'm wondering if I'm going to have a similar issue with my 29. When I pulled the engine the clutch looks like new along withe the shiny pressure plate. I'm assuming it was changed not to many miles ago. But when I removed it there were washers between the pressure plate and the flywheel which I intended to remove. The washers remove the stability of the pressure plate by not being flush with the flywheel. Now I wonder..... Quote Link to comment Share on other sites More sharing options...
Dartgame Posted May 21, 2023 Report Share Posted May 21, 2023 Hickory - that sounds pretty sketchy. I doubt washers should be used as spacers on any standard style clutch....keep us posted ! Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted May 21, 2023 Report Share Posted May 21, 2023 Seems to be a some what common problem these days... It's critical the new/rebuilt shoe or clutch linings be no thicker than OE specifications listed in the factory shop manual. Quote Link to comment Share on other sites More sharing options...
Jerry Roberts Posted May 21, 2023 Report Share Posted May 21, 2023 3 hours ago, Hickory said: I'm wondering if I'm going to have a similar issue with my 29. When I pulled the engine the clutch looks like new along withe the shiny pressure plate. I'm assuming it was changed not to many miles ago. But when I removed it there were washers between the pressure plate and the flywheel which I intended to remove. The washers remove the stability of the pressure plate by not being flush with the flywheel. Now I wonder..... I used washes exactly like that on a Chevy many years ago . I had tried everything else that I could think of to correct the problem , different clutch disks , different pressure plates . I never did find the cause of the problem and drove the car using the washers . Quote Link to comment Share on other sites More sharing options...
Dave72dt Posted May 22, 2023 Report Share Posted May 22, 2023 Are the pressure plate fingers adjustable? A thicker disc moves the fingers closer to the disc. Too close to the disc and there may not be enough travel in the throw out brg to fully release the disc. Washers may have worked but they also lessened clamping pressure on the disc. Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted May 22, 2023 Author Report Share Posted May 22, 2023 I’m still having a bit of grinding into reverse. I have no idea what else to try. I’m literally running all the old components that worked fine before the engine swap. It’s adjusted exactly as the manual calls for. I’m done crawling under the car for now. I’m going to drive and hope for the best. Quote Link to comment Share on other sites More sharing options...
Sniper Posted May 22, 2023 Report Share Posted May 22, 2023 Idle RPM too high? Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted May 22, 2023 Author Report Share Posted May 22, 2023 I’m going to check. Must not be too high because the transmission up shifts fine. Quote Link to comment Share on other sites More sharing options...
Sniper Posted May 23, 2023 Report Share Posted May 23, 2023 Another thing that came to mind was what type of gear oil you are using. If it's too slippery the gears don't slow down quick enough Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted May 23, 2023 Report Share Posted May 23, 2023 Did you put a couple drops of light oil on the input shaft for the two inner/outer pilot bushings? NOT Grease! Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted May 23, 2023 Author Report Share Posted May 23, 2023 Sniper I use AW32 hydraulic oil in the transmission. Dodgeb4ya no I didn’t. I did wipe down the input shaft with a light coating of oil. I didn’t know to oil it for the bushings. I did lower the idle a bit. It’s always been hit or miss with that. I’ll set it with my tach and it’s perfect till I blip the throttle and it’s changed again. Oh well we’ll see how it works today. Quote Link to comment Share on other sites More sharing options...
Hickory Posted May 23, 2023 Report Share Posted May 23, 2023 Is this new fluid as when all the issues started. It's just strange that only reverse has been effected. Did putting it in to an another gear first and then quickly shifting to reverse help. Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted May 23, 2023 Author Report Share Posted May 23, 2023 Hickory, no it doesn’t seem to help. It’s not as bad as it was and I’m out of both options and patience so I’m just going to drive it and try to be careful. Quote Link to comment Share on other sites More sharing options...
Los_Control Posted May 23, 2023 Report Share Posted May 23, 2023 Not sure if it was suggested or you have tried ..... Try putting it in 1rst gear first, then straight up to reverse? My 1991 chebby with a NV3500 5spd ..... I have to put it into 5th first then straight down to R ..... I guess it just aligns the gears so I can put it into reverse. .... Otherwise if I try to come from 1rst to reverse it will just grind terribly. Same time the transmission shifts beautifully, is nice & tight ...just never get reverse without going to 5th first. Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted May 23, 2023 Author Report Share Posted May 23, 2023 Los I have the M6 semi automatic transmission so no 1st gear position. I’ll try a few things and see what helps. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.