1974 302 - air presure issue

by james
(rhode island)

I have a 100 psi 125 cfm I 1974 302. When i open the valve all the way it builds up pressure slowly. the engine revs up, but the pressure builds slow.


When I open the valve to the pressure drops to 90 then 80 then 60 and holds.

Every so often it will leak antifreeze out of the overflow tube.

When I turn the valve back to Idle the air pressure drops to 30 psi fast. It used to slowly go back to 30 psi.

I do not see any air leaks anywhere.

I have done a tune-up and replace the coil and the distributor. The timing is spot on.

Comments for 1974 302 - air presure issue

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Oct 20, 2018
Your 1974 302 compressor...
by: Doug in s.d.ca.

What's the make? Actual model? Piston or screw?

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