View Single Post
Old 05-08-2024, 06:26 PM   #4
weq92f
Registered User
 
weq92f's Avatar
 
Join Date: Oct 2016
Location: Dallas Texas
Posts: 2,969
Re: pedal to booster ratio mechanism

Quote:
Originally Posted by Rust_never_sleeps View Post
Leverage is constant, but you're getting diminishing returns for the same "work".
That doesn't sound like a problem with your linkage.
Could be your booster isn't holding vacuum, as a first guess.
.

I do suspect the booster however it passes the tests:

Check valve is good
Vacuum to unit feels strong
It holds the pedal after engine shutdown
Eng off, pump away any vacuum hold pressure on pedal start engine pedal drops slightly

Just trying to figure out whether my replacement booster needs that bell crank or not.


-Kevin
__________________
67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi
07 335 sport turbo 6sp
94 Trans Am GT LT1 6sp posi -- sold after 22yrs
99 540 sport V8 6sp -- sold
73 240z L24 4sp -- given to friend
68 C10 step 350/350 3.73 open -- sold
weq92f is offline   Reply With Quote