Brake Booster Replacement Trouble

940in808 · Post by **940in808** » 21 May 2011, 12:12

Hi All,

I have a 1992 Volvo 940 Turbo and I just replaced my brake booster. The problem I'm having is reinstalling the master cylinder. It seems the brake booster shaft is too long to fit in the master cylinder (Did I buy the wrong booster?).

Thank you in advance.

Brandon

Post by **jimmy57** » 21 May 2011, 13:00

the rod is not seated in the booster would be my guess. Wiggle the rod while pushing it back into booster and see if it doesn't take up the same position as the one you removed.

940in808 · Post by **940in808** » 21 May 2011, 14:44

I tried the "wiggle" but its a no go. I know what you mean cause I tried it on the old one as well. I went back to the part store and no several other part stores, no one seems to know how to adjust it. I think my last hope is just to try and get another booster to see if I can match it up to my old one.

On a side note do you think the master cylinder shaft is too far forward and needs to be further in? I changed my booster cause when I would step on the break it felt completely solid, as if there was no assist. I'm starting to wonder if that affected the master cylinder at all. Maybe the shaft on the brake booster is in fact the correct length and the master cylinder shaft just needs to go in further.....idk...I'm lost.

940in808 · Post by **940in808** » 21 May 2011, 19:39

Come to find out I was sold the wrong booster. Everything was the same as the original booster I had except the booster shaft was about 3 inches too long. Once I got the correct booster in hand, I installed it and everything is working out perfectly right now.