I have rebuilt my transmission but it keeps burning up reverse high clutch plates. It has burned up two sets so far. I am thinking that it might be something stuck in the valve body.

Any ideas or suggestions?

Eric

 

What was the clearance ? Did you do an air check for leaks ? How do the forwards look ? This should be in the trans section. Maybe a mod will move it for you ?

 

I don't remember the numbers but the clearance was good.

I didn't even realize there was a transmission section. (I had looked three times and never saw it so I posted here) I will do a new post in that section.

Eric

 

By clearance was good, do you mean that it had enough, but not too much? You can have too much clearance, which will cause slippage. You have to adjust both for too little and too much.

 

The clearances were within the specs in the 76 shop manual. The truck is a 76 F-350 with a 460, however, the transmission is from a 79. When I did the rebuild, I did a part for part replacement. It had 3 steel plates and 3 friction plates. The 76 shop manual says it should have 4 steel and 4 friction. When I tried to put in 4 and 4 then there was no way to install the snap ring. I figured that it was a difference between the 76 and the 79 because when I do 3 and 3 I get clearances that are within spec.

I would love to find the exact specs for the 79. By the way, if any one has the shop manual for a 79 F-series truck in pdf form and would like to email it to me, it would be much appreciated. Also, if any one needs any part of the 76 F-series shop manual, I would be more than willing to email it.

Eric

 

Part for part does not guarantee that the clearance stys correct, that is why it has to be checked. Sometimes 6 cylinder transmissions would use fewer clutches, so it is always a possibility somebody swapped in a different clutch drum. Some of the components are different thicknesses to be able to adjust the clearance. Also, did you replace the seals in the clutch drum?

 

I did check the clearance and it was within the specs in the 76 shop manual.

All seals and o-rings were replaced.

Eric

 

Are you sure it had only three? Mine easily had room for four. Other than that, I have nothing. I hope you figure it out.

 

It was three in there when I opened it and only three will fit back in it.

Eric