Thread: Loss in Oil Pressure

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Watch the hole as you run the priming tool. There should be a boat load of oil gushing in the distributor bore area of the block. One possibility is the "hidden" plug was not re-installed OR the outside part of the distributor shaft is worn and bypassing. A couple of tidbits to look at.

i fired it up before to do my breakin but its timing was off, but it ran for several minutes with 10-20 psi, and oil was coming out of the pushrods, i cant figure out how it would just stop, also sometimes it would smoke slightly out of the valvecover breather

possible air bubbles in your sending unit line, bleed it....


Mike...

Definitely use a priming tool, don't start it again until you get it to make pressure. Did you change the cam bearings? If they aren't aligned right they can block pressure to the gauge port, or other places.

You have to watch out on the new oil pumps I've seen where the factory put too much cosmoline on the pumps to prevent rusting will stick the relief valve open and you have no oil pressure. So take the pump apart and clean it real good and make sure the relief valve is working freely. Then apply 50 wt oil inside the pump so it will prime up quicker.