Hi all, I finally got my 327 running in my 65 GMC. It was quite a conversion from the old 305 V6. The kids at my local High School auto shop used it for a project since I know the instructor. School ended and they didn't have time to wrap everything up so I finished it through the summer. Now that it is running the way I want it, I have another issue and then I can drive it. I push in the clutch pedal and nothing happens. There is just a lot of tension and the rod from the pedal to the Bell Crank flexes. I have gone through it and everything is moving the way it is supposed to with the exception that it will not press the pressure plate to release the disc. I feel like I know that answer but wanted some input. I believe that the kids put the friction disc in backwards and not there is no movement to release the friction disc. I am sure I will be dropping the transmission this weekend to find that one out. Thanks for any other input that you all may have.
If the disc was in backwards, the springs would be hitting the flywheel bolts, but would release. If it has a diaphram pressure plate, the spring may be broken. Pilot bushing might be tight ...
Is it possible that the fork is not the correct one for this application? I have looked up a replacement and it looks like the one I have in my shop and not like the one that the kids installed while they had it for their cl*** project. The current one seems to be a bit sloppy on the pivot ball. It also has only about a 1/2" travel before it will hit the back of the bell housing hole that the fork extends out of to connect to the clutch rod.
You may have already answered your own queastion, at least partially. Flex in the push rod is lost motion that may not let the clutch fully disengage. Also look at the Z-arm (bell crank) for any flexing or distortion and check the welds closely where the two levers attach to the cross shaft, especially if the Z-arm is used.
X2. OP, with the engine off and trans in any gear, can you move the truck like if it was in neutral? If yes, wrong Throw Out Bearing, it's to long.
Sometimes a rebuilt pressure plate will come with wood blocks under the fingers to hold the springs compressed until it is installed at which point you need to remove the blocks. I had a ford tractor dealer put in a special clutch and pressure plate I had ordered in tractor one time. They called me up and wanted me to come in and see them because the clutch I provided was "no good". When I got there the service manager said they had found the problem and he did not want to talk about it. I found out later they had not taken the blocks out. You might have something like that going on. Just a thought. B
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