clutch brake troubles

really really easy work around. Always stop in gear..

 

The proper way to adjust is to get the gap between the throwout bearing and the clutch brake between 1/2 and 9/16 of an inch with the internal clutch adjustment. Then get an 1/8 between the throwout bearing and your release forks with the linkage. If it is a peterbuilt that should give you about 3 inches of freeplay in pedal. All other trucks about 1 1/2 inches of freeplay in pedal. If it still doesnt stop the trans. Look for new clutch.

 

Take the insp cover off and measure gap between the release bearing and clutch brake, should be 1/2". You can use a 5/16" bolt with 1/2" head to measure.

If they adjusted the linkage to close the gap on the clutch brake the clutch itself will have a very high on the pedal release/engage point.

 

You may also want to check to see if the clutch brake may of came off headshaft. The two peice brakes will do this sometimes.

 

is it a high mile pete?

 

You adjust the brake with the linkage FIRST, then adjust the pressure plate to achieve the proper free play. I was told this is wrong, but after 20+ years, it's always worked for me.

 

That is doing it backwards, and there are many doing it this way, but it's not right. Gearhead stated the correct procedure by the book for best results.

 

If you set the free travel first, and the brake won't squeeze properly you say then adjust the linkage. When you adjust the linkage it changes the free travel. It's not wrong, it's just another proper way of doing it. Like stated, worked for me 20+ years without a single problem. Never have to replace brakes between clutches. Two years between adjustments.....never mind, not beating this dead horse tonight.