clutch slipping

L

larry harding

Senior Member
my speedster has a lightened flywheel and the 9" v8 clutch, i've used this set up before with no problems. i just put in a 39 syncro trans mission with the adapter. the clutch lever on the ****** is right at 3:00 but has no play. i think the throw out bearing is under pressure and not letting the pressure plate work properly. before i pull the trany back out, any ideas what i may have done to put pressure on the throw out bearing causing the slip?
 
Adjust the clutch. There should be 1 inch play at the top before the throw out bearing starts to push on the pressure plate levers.
 
i understand what you ate telling me, but the lever on the ****** is not connected to the clutch link at this time. there is no free play in the lever on the ****** which tells me the throw out bearing is putting pressure on the pressure plate not letting it bite down on the disc. i'm reasonably sure i didn't assemble the clutch release lever backwards, trying to get an idea what to look for when i pul the ****** again. the pressure on the clutch shaft arm more than just the return spring. almost like the throw out bearing is too long.
 
Is it possible that you have the clutch fork installed on the shaft backwards? That fork is pinned to the shaft, and if it's in backwards it might not let the throwout bearing housing retract enough.
 
It is also possible that the forks are not fitting onto the throwout bearing housing properly. I had this happen to me once.
 
I think either JayJay or nkaminar are correct here. Like nk, I have had that happen and one time, when I was about to change gears, it slipped into the correct position. I couldn't disengage the clutch then.
 
Hello, also had the clutch fork hang up on bearing sleeve , had to spread it slightly to get it to fit ,was rubbing on the casting rather than sitting on the “ears” .
 
You should be able to look down through the inspection plate opening to see how the clutch actuating fork interacts with the throwout bearing carrier.
 
I am gun-shy about V-8 clutches anymore. Four of the last five I bought from reputable vendors were bad instantly or shortly after driving only a little while. Three began slipping right out of the box and one developed a slipping condition within 10 miles of installation. The fifth one went bad before one foot had been driven. The fingers gave out and caused a heck of a racket when the clutch pedal was depressed as the fingers struck the spinning clutch disk. Until further notice, I am done with V-8 clutch conversions. Too much work pulling the bad ones out and installing another questionable clutch. I never noticed much improvement over the stock clutch anyway.
You pays your money, you takes your chances...
Marshall
 
o.k guys i have embarassingly solved my problem. i consider myself a reasonably smart guy especially with mechanical problems, but i can get a case of the dumb a.. from time to time. when i put the eng. and ****** together i grabbed a used disc i had on hand and put it in. unfortunetly the used disc was only .25 thich the red book suggests minimum .30. i had a good disc that i .35 thick. i now have some travel on the ****** lever and should be able to adjust pedal travel to my liking.
 
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