throw out bearing

canadian said:
thanks Tom , trying to get back at car to take a picture, but while looking into inspection cover shouldn't T O bearing be near fingers? mine appears to slide forward 3 or 4 inches before coming in contact with fingers , the bearing body is long style.
Click to expand...

How can the T O bearing be 3"-4 " away from the fingers? Sounds very wrong.
 
while bolting on pressure plate with aftermarket disc clutch fingers drawn in so deep that T O bearing had to travel full length to even touch fingers that were already compressed.
 
A new disc will have a much thicker lining than a worn disc and this will make the pressure plate fingers move in more. I've never heard of a disc that had too thick a lining.
How thick is the new disc?

BTW, I had to adjust the fingers on the last new pressure plate I installed. They weren't even with each other, and they were quite a bit off the 11/16" correct depth.
 
hey Tom , maybe i used a canadian expression , To Thick, the new disc is a good bit thicker than old used one , i don't have exact measurement on hand, disc was purchased from vendor in Calgary Alberta who markets Macs parts, i also noticed that the adjustment nuts were back until no thread was showing on screw, with 11/16 adjustment several threads are showing. i have two other plates and original discs and no threads showing on either of those two. i think in the end that the new disc is cheap and mass produced with no attention to detail....just to get job done
 
Your replacement plate may be significantly thicker for a reason, and not necessarily a bad one.

Many plates after the 30's were made with Marcel carriers. Separate from the center hub torsion springs, a Marcel carrier adds a wavy flat spring plate under the friction material on one or both sides of the disc. This eliminates chatter and jerky engagement while providing a broad, gentle friction point feel.

Your old plate may have had only the hub springs and a solid riveted lining, or perhaps a single sided, thinner, or less aggressive Marcel design.

A Marcel carrier (wave spring under the friction material)
makes for a thicker plate.
clutchplate1.jpg

 
Hey MikeK,
Do you happen to have a 'Marcel' type disc which can fit/be used in A/B ? If so, would you please give me a part number :)
 
Hardtimes, I have one with SMM73 on a box marked "Master Clutch". It is a single center Marcel with six center torsion springs captive on both sides. I bought six of them at Hershey several years ago, used five, and have only the one left, slated for a diaphragm PP behind a R2P now on my bench. I do not recall who the vendor was. If I could find discs equal in quality I would buy more. That number cross-ref's to APRA# CD688 but ordering one of those gets you the typical recent vendor trash with center torsion springs caged on one side only.
 
Hey Mike,
Thanks :) !
Too bad that that disc is not readily available. It appears to have the right stuff. And your use of it confirms that. I don't think that a lot of guys realize the importance of the 'captured' springs, and the problems that they prevent. That's what caught my attention.
 
hey rosella, you were the first with the KISS syndrome , Keep It Simple Stupid. and i thank you for that, i think that this forum is a wealth of knowledge , extremely professional but if you make a mistake , with terminology or description of a part or situation be prepared to be hit with insults and crap, i am up for that from both sides but i will be barred from side. TIMES 2, and you know who that is. anyway look on the map folks i am in Newfoundland Canada , drop by
 
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