vaccume assist to manual brakes?????


kamshaft

10+ Year Member

Joined
Oct 3, 2010
Messages
170
Points
1,601
City
appleton wi
Vehicle Year
88
Transmission
Manual
im doing a 5.0 swap in an 88 ranger but the cam in the motor wont produce enough vaccume to supply the power brakes. is it hard to switch over to manual and how stiff will my pedal be to push?
 
The cam is only indirectly a part of the vacuum system. Vacuum is created by the the intake sucking air into the engine. The cam only opens the valves. If the cam is not opening the valves enough to create vacuum, you have bigger problems. Check the hose and the one way valve to the brake booster.

Changing over is not as easy as it seems. You may need different brake pedals, shorter brake actuator shaft, possibly different brake lines and other assorted odds and ends. Usually easier to fix the problem than change it out.

That being said, the pedal feel afterwards should be just a little stiffer.
 

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