Re: [Peugeot-L] 84 505 STI: some brake questions / response

From: Pug NZ <pug-yahoo2_at_azorah.co.nz>
Date: 07/12/05

The rear brake compensation valve is hooked up to the torsion bar. When you are playing with it, it is important to have the car at kerb weight.

Kerb weight = with spare wheel and full tank of fuel. Car must be on wheels, in normal ride position (ie rolled forward/backward after coming down off a jack), suggested over a pit or on ramps.
Attach a 5kg (11lb) weight to the long arm at the notch just below the spring from the torsion bar attachment.
fully push in the compensator piston
Adjust the screw below the compensator to correct clearance with 0.8 mm (0.032 in) feeler gauge for disc brakes, 1.3 to 1.8mm (0.051 to 0.071 in) for drum brake models.
If you didn't fill the fuel tank, use a thicker feeler gauge by 0.2mm (0.008 in)

Note: doesn't apply to ABS or wagon models.

Also, this will not affect the handbrake. For that, check that the levers on the inside of the calipers are returning fully, Often the cables are tightened too much in an effort to get the brake to work better, and this stops auto adjustment from working, Slacken the cables right off, push the levers fully in, put the foot brakes on hard a couple of times, then adjust the handbrake cable.

If the levers don't return, you need to service the piston (which according to Peugeot is no user serviceable parts inside, however, according to me there are :)

Kevin

petermcgarvey@att.net wrote:

>My old 505 S TD ( 1982 ) Shop Manual indicates that a 5 Kg weight be hung from notch on lever of brake proportioning valve to compensate for a loaded rear seat.
>
>Good Luck,
>
>Peter
>-------------- Original message from kenneth parker <elkeni@mac.com>: --------------
>
>
>
>
>>Tomorrow I plan on changing the brake proportioning valve on my 84 505
>>STI sedan. The old one leaks. In addition, I have trouble getting the
>>e-brake to catch and on hills, with the e-brake on full it doesn't
>>quite do it. The pads are good and properly installed (re: slot in
>>ratcheting mechanism). I have adjusted the e-brake cable nuts in as
>>far as they can go to take out any slack.
>>
>>My questions are:
>>1. Am I supposed to hang some sort of weight on the lever below the
>>proportioning valve for an adjustment and, if so, how much weight,
>>where and what is the adjustment procedure.
>>2. Is there a way to check the ratcheting devices on the rear to see
>>if they are truly functional and, if so, what is that way.
>>Thanks,
>>Ken
>>
>>
>>
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