Just wanted to see if anyone has ever damaged one. I completed a swap of my old M6 pedals to an automatic setup for my new TH400. Well the brakes worked fine yesterday as I was doing a few hard pulls, then did the swap today and the brakes are totally hard. I pulled the vaccum line off the booster and I usually get that pop as air rushes in, but there was nothing. I removed the booster and it lookes like a seal is pushed out on the rod end, I tried to push it in again but it wouldn't hold. I didn't move the rod much at all during the install.

Has anyone ever had a check valve go bad when in boost that would pressurize the booster. I am going to get a new booster and checkvalve to complete the fix.

Bill

 

nope but my booster took a crap when i was swapping my t56 into my car it was also leaking from the rod end from the inside i guess they dont like being played with.

 

Interesting! I was thinking of pulling one out af a bone yard, but if these are that fragile I think I will just buy the $89 lifetime warantee one from AutoZone. Thanks

Bill

 

mine blew after i did the ls brake swap on my 94 and bought one from my junkyard for $50 and i havent had any problems yet. think its usually just a one time thing with these when you mess with the line