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Old 06-04-2017, 03:46 PM
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eschaider eschaider is offline
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Join Date: Feb 2006
Location: Gilroy, CA
Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
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Quote:
Originally Posted by FatBoy View Post
I've cut the filter open and there's absolutely nothing metal in there.

I'd have to reassemble the engine and run it to test the oil pressure, so it makes no sense to me to not replace the oil pump while I have it out.

If, when I've fitted the new pump it still misbehaves, I'll check the pressure with another gauge.

I've spun the pump on the bench with an electric drill and it doesn't sound particularly healthy. There is a definite knock and a tight spot.

Paul
Your guardian angel has smiled upon you Paul.

Just for grins take the pump apart to see what is amiss. While you have the pan down also check the rod bearing physically farthest from the pump. If the bearing looks good, count your blessings, put a new pump in and don't worry be happy.

If the bearing show some scuffing and embedded particulate matter replace it and check the rest of the rods and mains for similar issues. If you have to replace two or more bearings just replace the entire set. Pay attention to the crank journal(s). If it (they) have become scuffed, your job just got bigger.

At this point, based on what you have discovered so far, it sounds like you have side stepped a bullet — congratulations.

BTW good Sherlock Holmes work ...


Ed
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