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Mystery part

Malachy

Enthusiast
Messages
39
Location
Uk
#1
1983 French GTL
This is a view from the near side rear suspension. It's a strong coil spring approx 20mm diameter attached to the chassis and to the trailing arm it's not in tension and never is as it's not adjusted to be so. In fact in it's present state it does nothing. I've checked out two manuals nothing.
Any ideas?? Screen Shot 2019-06-18 at 14.31.52.png Screen Shot 2019-06-18 at 14.31.30.png
 
Messages
3
Location
Hungary
#2
Hi, i guess its the brake pressure regulator spring. During braking the rear of the car becomes light, this system "detects" it and reduces the brake pressure going to the rear axle preventing the rear wheels from blocking and the car from spinning
 

angel

Enthusiast
Messages
1,915
Location
Athens, Greece
#6
The official way of adjusting it involves measuring the rear brake line pressure. It will not normally need attention, unless the brake pressure regulator has been replaced or the rear suspension height has been altered. A rough way to do this is to gradually add tension until the rear brakes lock just after the front ones do. Obviously the rear brakes themselves should be in top condition.
 
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