Quote:
Originally Posted by BruceWilkie
Change regulator spring or shim it or modify spring cap so you can make it adjustable.
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Ive changed springs and also I've shimmed the spring (changed caps).....at one time i had 100psi with the same configuration I had in my mellings pump (purple spring)! The Butler pump comes with the same yellow spring thats in the mellings 60psi pump. So I took the mellings cap off and reinstalled the Bultler cap (one cap is deeper then the other), with the same purple spring that was in my mellings pump....now I'm only getting 45psi and that it. Just doesn't make sense psi should be at least 70?
GTO George