The Ford Barn - View Single Post - V8 Clutch in Model A: Something is not right

johnneilson · 03-30-2024, 09:06 PM

From the first picture it looks like the pressure plate is compressed too far, disk is too thick. It is positioning the arms too deep into the PP assembly, no room to actuate and release the clutch.
There are a couple causes, as I think your .380 dimension is about right for the disk.

I have not seen any issues with the pressure plate itself, only the fulcrum points on the release levers. Take a look in there and see if there are shims or washers between the pivot and the outer housing. I know there are at least two different height cover plates and pivot fulcrums.

Do not attempt to disassemble this assembly unless you have some sort of a press to contain the spring preload.

I would not add washers under the PP to flywheel to run, but you can try this to see if you can get the height correct where the arms can move to release and clear the disk.

The other option might be to run a solid disk, non spring center disk.

John

03-30-2024, 09:06 PM	#19
johnneilson Senior Member Join Date: Jun 2010 Location: 34.22 N 118.36 W Posts: 1,068	Re: V8 Clutch in Model A: Something is not right From the first picture it looks like the pressure plate is compressed too far, disk is too thick. It is positioning the arms too deep into the PP assembly, no room to actuate and release the clutch. There are a couple causes, as I think your .380 dimension is about right for the disk. I have not seen any issues with the pressure plate itself, only the fulcrum points on the release levers. Take a look in there and see if there are shims or washers between the pivot and the outer housing. I know there are at least two different height cover plates and pivot fulcrums. Do not attempt to disassemble this assembly unless you have some sort of a press to contain the spring preload. I would not add washers under the PP to flywheel to run, but you can try this to see if you can get the height correct where the arms can move to release and clear the disk. The other option might be to run a solid disk, non spring center disk. John __________________ As Carroll Smith wrote; All Failures are Human in Origin.