TwinTurbo.NET: Nissan 300ZX forum - Oil pump will not prime
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Subject Oil pump will not prime
     
Posted by ctheobal on May 04, 2026 at 1:05 PM
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Message I had the engine out for ten years. Replaced front, rear seal, oil pan gasket, valve cover gaskets. Put it back in, filled oil filter with oil, filled oil cooler and crankcase. Turned engine over with fuel pump relay removed for 15 seconds at a time, looking in the oil filler hole for signs of fresh oil, nothing. Did this for about 15 times waiting a few minutes between attempts. Is there any other way to prime the pump with the engine in the car? Or pulling the pump while engine in the car?
Thanks!!!

     
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