Hello All,I have a 65 GMC that I removed the 305 V6 from. I replaced it with a 67 283. All is well with it and it runs great. I am having issue with the clutch. It will not disengage.I have been through it form the pedal to the fork and it is adjust all the way up to where the throw-out bearing is just touching the fingers of the pressure plate.When you push in the clutch pedal it moves and does what it is supposed to. The problem is that it does not travel far enough to give enough distance to spin freely for shifting.The linkage, bell crank and all the clutch parts are for the 283 and a Chevy truck of the year. Has anyone had this problem? I have even checked the throw-out bearing and it is the larger one so that isn't even the issue. The fork looks different form what the parts stores show, could that be it? Maybe the fork is for a car and not the truck?I sure hope someone can help me out. I really do not want to drop the tranny. Thanks all.
It has been sitting for about a yer in the High School shop while the kids were using it for a project. Could the friction disc just be stuck to the pressure plate and flywheel? they were a bit rust and I would imagine the kids didn't do anything to clean it up before they installed it. I did notice that when you depress the clutch pedal it appears the at the friction disc separates a bit like each side is sticking.
i have had them rust the frictions to the pressure plate and the flywheel face..make sure that the clutch linkage will disengage the disc fully.. use mirrors and flash light if you need to .. to cure this issue.. while the truck is POSITIONED where it will NOT HIT anything if it moves...or jacked up with the parking brake fully applied...hold the clutch down.. place truck in 4th gear.. direct thru the transmission..while holding the clutch down.. crank the engine over with the starter.. there is a fairly good chance of the rust separating and allowing the system to return to normal..i would probably do this with the ignition coil disconnected. so the engine will NOT start.. once it breaks free.. a skilled operator.. the instructor.. somebody with knowledge.. may want to start the engine.. again with the parking brake on hard... step on the clutch... stick the transmission again in 4th gear... and rev the engine slightly while allowing the clutch pedal slightly up off the floor.. this may burnish the clutch facing and machined surfaces.. to smooth down the rust..rust on the clutch faces will/MAY cause issues later on.. could something have gone wrong in the clutch linkage??? adjustment???pedal and Z bar lever ratio???and a HUGE WARNING.. there is a chance that this truck could crank its way into a wall or another object if this goes WRONG.. so jacking up.. setting rear axle on jack stands.. and the parking brake on.. is the safest way to go..