[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: Rear disc setting

Sachelle Babbar wrote:
> On my 84 5ksT I have a problem in that on rear disc is tight with the
> ebrake and the other is a little looser. They both work in normal service
> use (evidenced by hot wheels and dust). To make them tighter and more
> balanced, I drive in reverse and pull the ebrake and hit the brake at the
> same time. What gives? One side is looser than the other and I want to
> know why. Why?

Age, overheat.

I usualy disassemble the calipers, clean pistons and bores WELL. Also clean the 
central *worm* in the bore and it's respective bore in the piston.
Make sure that after the clean-up both pistons move in their bores equally easy. 
If so, put new O-rings and new rubber boots on the pistons and assemble the 
calipers. The rebuild kit for both rear calipers was ~$15 the last time I did 
the rebuild.

Now, if one piston requires more effort than the other one, it is likely that it 
was distorted by overheat (oval rather than round).
In this case you're looking to replace the caliper ($$$).
Igor Kessel
'89 200TQ - 18psi (TAP)
'98 A4TQ - on order...again. For the third time and counting.
Philadelphia, PA