Quote:
Originally Posted by jt20
I am having lots of trouble with the viton rings from mcmaster.
either they shear off on install or don't stay sealed for very long.
one spot in particular keeps letting air in after just a few long cycles - i have replaced it 3 times already.
Does the buna seal up better, even if it doesn't last as long?
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You most likely have a leak @ another source. I have sourced the o-rings from McMaster and not had any issue(s). Check ALL of your lines, hard fuel lines, injector return lines, etc......