The car is a 92 Civic si hatch.

We have a vacuum leak where the MC bolts to the booster. I think the MC has been switch over by the previous owner, but I don't think the BB was ever swapped. Is an integra MC compatible with a stock Civic Brake Booster?

I am trying to determine if I should replace the booster with the stock unit or if the Integra part will bolt up? Also I am wondering if the leak is due to the MC not mating properly cause it is not compatible. Any help!??!

 

Sorta, sometimes you have to adjust the play of the piston in the BB, I believe it takes a special 14pt socket or something.

-PHiZ