The Stovebolt Site Forums The Parking Lot Big Bolts Pressure plate adjustment screws?

I recently rebuilt my engine. I did not see the need to do anything to the clutch. It wasn't slipping. It looked good. Plenty of life left....

Now it is slipping when it is in 4th gear. I have backed off my adjusting nuts to make sure it is not being held up by the floor board. I did notice when I had the clutch off that there are slotted screws with jam nuts on the rear of the pressure plate. What do these do?

I really had no problems before!

I believe that those are used when the pressure plate is assembled to setup the arms/fingers correctly. I've always been cautioned to not touch them. You may want to call a shop that rebuilds them and talk with them.
This is the contact information for the shop I have used.

Fleetpride
Roseville MN
651-636-4311

www.fleetpride.com

Randy

Those are used when the pressure plate is built (or rebuilt) to set the height of the arms. there is nothing to be adjusted after it is set up.

My personal rule of thumb, after a few cases like yours over the years: If I remove an engine, replace a transmission or split a tractor for any reason - replace the clutch!
Clutch/pressure plate sets are best way to go.
It is so much work to take everything apart to do a clutch that doing it when it is right there just makes sense.

As Jim says, replace it all while it's apart and don't forget to replace the throw-out and pilot bearings while your there...come with most kits.

Mike B

Good advice about the throw out bearing, pilot bearing and a rebuilt presure plate/clutsh combo.
Don't foreget to have the flywheel kissed off on a sueface grinder to make a good, smooth working clutch.

I honestly don't know the real reason(s)for it happening, but a seemingly good working clutch that looks reasonably good on visual inspection will often fail within days of reassembly.

Theories include:

Replacement engine puts out more HP then the one you took out.

Pressure plate springs are disturbed in removal/reassembly

While the clutch plate is out it attracts moisture/dirt/oil etc.

It's a plot by the people who sell clutches.

Anyway, after having it happen to me a couple of times, I put it in the "anything that can go wrong will go wrong" category.

Well, I had the floor out and looked things over. I backed off on the adjustment to make sure the pedal wasn't hitting on the floor. Put everything back together and my clutch is not slipping anymore.

Thanks for the help. Now it's time to pull the brakes off one more time to make sure all looks good and make some parts for some Stovebolters.....