Quote:
Originally Posted by wayne sipos
The inner bore of my aerospace pump grooved up bad when I was on alchohol....I had a machine shop bore it and put in a stainless sleeve which cured the problem....this was one of the early design pumps ....works great now....
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After every day of racing when I put the car in the trailer I remove the vacuum hose from the pump inlet side and leave it off until the next time it comes out of the trailer. Then before I start the car I squart a little PB-50 in the inlet of the pump and put the hose back on. I also send my pump back to Moroso every winter and have them go through it. They always want to know if I ever use it much because it still looks new inside.
PB-50 is a general purpose lubricant made by PB Blaster. you can find it at most Home Depot and Lowes stores.
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