Volvo RWD 120-130 Forum

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bleeding brakes (w/ Lockheed booster) 120-130

My '68 Amazon has had 2 brake bleeds, but pedal action still seems pretty soft, sinking close to floor before any resistance.

The car has the dual circuit master cylinder, front discs, rear drums (self adjusting Wagner style) AND a Lockheed brake booster.

Is any special technique needed when bleeding brakes which have a (Lockheed) booster attached, or is it completed the same way (when there is no booster?)

Booster worked fine before the car was taken out of commission for restoration. Brake cylinders are new. No leaking of fluid anywhere I can tell.

One of my fears is a possibly damaged master cylinder. It worked fine before, unfortunately my previous "mechanic" decided to take the thing entirely apart while car was in his shop, after I told him not to mess with it. If this was put together incorrectly, could that cause symptoms I'm experiencing? Any reliable/ easy test available, to determine if master cylinder is causing problems?






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New bleeding brakes (w/ Lockheed booster) [120-130]
posted by  Damian  on Sun May 29 05:40 CST 2005 >


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