Clutch woes!!!!
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CF Senior Moments Member
Joined: Jan 2004
Posts: 1,329
Likes: 1
From: Oklahoma City Oklahoma
Clutch woes!!!!
Ok so I drive my new engine carefully during break in - also new McCleod twin disc. With around 600 miles on it - I take a trip - about another 500 miles added. Purpose of the trip is to get tuned by one of the best tuners around - Doug Ring - (ECS) who happened to be in New Lenox Illinois for the weekend doing tunes at Nicks shop!
Long story short - among other glitches - my clutch stopped working!!
Nick - is handling the clutch swap this week at his shop - a new Mantic twin disc will be installed - and the car driven back home 500 miles very gently - (Doug was not able to finish the tune because of the clutch issue)
Billy - one of the better tech people at McCleod suggested that the clutch hydraulic bearing may not have been set properly and the "pressure plate fingers" may have "pushed into the bearing" so it will not release or allow proper pressure to be applied - therefore slipping mostly. That is what it seems to exhibit currently - just slipping - not holding any torque at all when in gear. We had to push the car to move it !! The issue described above is not readily apparent initially - but happens later - I guess after you get some miles and usage on it - because it was working ok no problems before this incident. It may also be using the GM hydraulic slave that contributed to the issue - but not sure at this point.
The McCleod folks do feel pretty sure that with a replacement hydraulic bearing - everything will work as designed again - that the clutch is still good!!
Nick is checking it out during "take out" and snapping some pictures.
Just thought I would throw this out - for those folks getting ready to do clutch installs - make sure you or your shop takes the necessary time and measurements before it gets slammed in and you go roaring off!!
http://www.mcleodracing.com/info/?id=5260
Long story short - among other glitches - my clutch stopped working!!
Nick - is handling the clutch swap this week at his shop - a new Mantic twin disc will be installed - and the car driven back home 500 miles very gently - (Doug was not able to finish the tune because of the clutch issue)
Billy - one of the better tech people at McCleod suggested that the clutch hydraulic bearing may not have been set properly and the "pressure plate fingers" may have "pushed into the bearing" so it will not release or allow proper pressure to be applied - therefore slipping mostly. That is what it seems to exhibit currently - just slipping - not holding any torque at all when in gear. We had to push the car to move it !! The issue described above is not readily apparent initially - but happens later - I guess after you get some miles and usage on it - because it was working ok no problems before this incident. It may also be using the GM hydraulic slave that contributed to the issue - but not sure at this point.
The McCleod folks do feel pretty sure that with a replacement hydraulic bearing - everything will work as designed again - that the clutch is still good!!
Nick is checking it out during "take out" and snapping some pictures.
Just thought I would throw this out - for those folks getting ready to do clutch installs - make sure you or your shop takes the necessary time and measurements before it gets slammed in and you go roaring off!!
http://www.mcleodracing.com/info/?id=5260
Thread Starter
CF Senior Moments Member
Joined: Jan 2004
Posts: 1,329
Likes: 1
From: Oklahoma City Oklahoma
update
Ok so I drive my new engine carefully during break in - also new McCleod twin disc. With around 600 miles on it - I take a trip - about another 500 miles added. Purpose of the trip is to get tuned by one of the best tuners around - Doug Ring - (ECS) who happened to be in New Lenox Illinois for the weekend doing tunes at Nicks shop!
Long story short - among other glitches - my clutch stopped working!!
Nick - is handling the clutch swap this week at his shop - a new Mantic twin disc will be installed - and the car driven back home 500 miles very gently - (Doug was not able to finish the tune because of the clutch issue)
Billy - one of the better tech people at McCleod suggested that the clutch hydraulic bearing may not have been set properly and the "pressure plate fingers" may have "pushed into the bearing" so it will not release or allow proper pressure to be applied - therefore slipping mostly. That is what it seems to exhibit currently - just slipping - not holding any torque at all when in gear. We had to push the car to move it !! The issue described above is not readily apparent initially - but happens later - I guess after you get some miles and usage on it - because it was working ok no problems before this incident. It may also be using the GM hydraulic slave that contributed to the issue - but not sure at this point.
The McCleod folks do feel pretty sure that with a replacement hydraulic bearing - everything will work as designed again - that the clutch is still good!!
Nick is checking it out during "take out" and snapping some pictures.
Just thought I would throw this out - for those folks getting ready to do clutch installs - make sure you or your shop takes the necessary time and measurements before it gets slammed in and you go roaring off!!
http://www.mcleodracing.com/info/?id=5260
Long story short - among other glitches - my clutch stopped working!!
Nick - is handling the clutch swap this week at his shop - a new Mantic twin disc will be installed - and the car driven back home 500 miles very gently - (Doug was not able to finish the tune because of the clutch issue)
Billy - one of the better tech people at McCleod suggested that the clutch hydraulic bearing may not have been set properly and the "pressure plate fingers" may have "pushed into the bearing" so it will not release or allow proper pressure to be applied - therefore slipping mostly. That is what it seems to exhibit currently - just slipping - not holding any torque at all when in gear. We had to push the car to move it !! The issue described above is not readily apparent initially - but happens later - I guess after you get some miles and usage on it - because it was working ok no problems before this incident. It may also be using the GM hydraulic slave that contributed to the issue - but not sure at this point.
The McCleod folks do feel pretty sure that with a replacement hydraulic bearing - everything will work as designed again - that the clutch is still good!!
Nick is checking it out during "take out" and snapping some pictures.
Just thought I would throw this out - for those folks getting ready to do clutch installs - make sure you or your shop takes the necessary time and measurements before it gets slammed in and you go roaring off!!
http://www.mcleodracing.com/info/?id=5260
My feelings so far lean towards excessive shimming of the slave - since I'm hearing that the McCleod does not usually require shimming on C5 applications. Nick did find the previous installation had it shimmed - about an 1/8th inch!!
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update - face is grooved / worn badly - like maybe there was slippage all along - that finally wore it out in approx 1200 miles.
My feelings so far lean towards excessive shimming of the slave - since I'm hearing that the McCleod does not usually require shimming on C5 applications. Nick did find the previous installation had it shimmed - about an 1/8th inch!!
My feelings so far lean towards excessive shimming of the slave - since I'm hearing that the McCleod does not usually require shimming on C5 applications. Nick did find the previous installation had it shimmed - about an 1/8th inch!!
Oh man.. it doesnt end on the install issue's.. sorry to hear that Burk.
What's tough too is that you cant expect McCloud to cover an install issue, but at least Nick will get it right for you, and I think you will be very happy with the Mantic twin.
Burning Brakes
Joined: Jan 2008
Posts: 941
Likes: 3
From: Grand Rapids MI
Ouch. I just shimmed my ACT clutch and had a few nightmares about getting it wrong. I ended up shimming about 4mm exactly, and was fairly nervous about the results of going too far!
Good luck. Keep us posted with a final verdict.
Jack
Good luck. Keep us posted with a final verdict.
Jack
