philcollins
Well-Known Member
Want to install a 1973 oem brake booster on my 1971. There a "spacer w filter" that goes between the booster and master. Which way does it goes?
Brake booster installation
- Thread starter philcollins
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ScampMike
Despicable Damn Yankee
the metal side goes toward the booster - the black plastic faces forward
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ScampMike
Despicable Damn Yankee
before you go too much further with this - what engine are you running?
philcollins
Well-Known Member
372, 18 in of vaccumm at idle
BillGrissom
Well-Known Member
Face drain hole downward. That way any leaks past the MC piston won't flow into your booster. Note many newer cars have a vacuum seal there between MC and booster. Those boosters are a thin pancake shape and don't have the inner bellows on the fwd side. Brake fluid leaks in those run into the booster.
ScampMike
Despicable Damn Yankee
I asked because I recently put a set of fabricated valve covers on a small block and with the larger booster (which one do you have there?) they hit each other.. just a word of caution.
philcollins
Well-Known Member
1973 booster with stock 1971 valve covers.
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