I own either a 61,62 or 63 215 which I installed in 1973 Chevy Luv pickup. It sporadically loses oil pump prime after setting for days, weeks, or months. Can anyone out there advise me what causes this and how can it be fixed? It goes without saying that this is a royal pain in the you know what to re prime.
I am also looking for a two barrel intake manifold and a Rochester 2GC carb. I have several four barrel manifolds also many engine parts , heads, valves, rocker arms, cranks, blocks, pistons, all used. Willing to swap whatever for a good intake and carburetor, also willing to sell whatever else I have. I also have one long block complete, that has been sitting for 20 years. Thanks for any help you can give me. Captrevans
Your oil pump gears may be worn to the point that they allow the prime to slowly dissipate over time. Your oil pressure will be lower than desired also. You can replace the gears with new ones. They are not hard to find and it is easy to do. Also, check your oil pump cover for wear and scoring. If the scoring is not too deep you can sand it smooth. Otherwise, repair kits are available that provide a spacer plate that goes between the cover and the housing on the front cover, which will increase your oil pressure. Hope this helps.