[Vwdiesel] '02 Jetta Honks When Backing Up

[sandy cameron]

On 5/11/2015 11:05 PM, Andrew .Libby wrote:
> Disc front and rear.
>
I took the back axle off an A2 Carat, to GET RID OF THE REAR DISC BRAKES 
and replaced it with a drum brake axle!
The rear discs are a lot fussier to maintain, only contribute about 10% 
of the braking effort, and need to be attended to every spring.
And  much more expensive to service, if you pay for it.

The pistons SCREW into the cylinders to enable the automatic adjusting 
system to operate, and you have to UNSCREW them to back them off. 
(Special VW tool # %@#$& required).

The groaning is probably rust build up on the discs from winter roads 
(they rust twice as fast as the front ones) , and because of the 
adjusters, can't back off as far when released. The sneaky rust builds 
up, making the disc thicker, and the piston is a one way device, and so 
can't back off to accomodate it, and then they drag, stick, and groan.

Also, if you are an infrequent parking brake user, the parking brake 
mechanism is a nightmare for rust-up in winter road conditions.
Parking brakes need to be exercised several times a day, or, NEVER used.
Pull them on infrequently, and they stay on when "released".

Been there! Good luck.

Sandy






> On Mon, May 11, 2015 at 6:01 PM, VE3AAC <scameron at storm.ca 
> <mailto:scameron at storm.ca>> wrote:
>
>     DRUM OR DISC?
>