Thread: 383 oil issues
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08-02-2013 06:45 AM #4
The rods averaged around .0015 and the mains were slightly wider at closer to .002 give or take .0001
The oil pump it had it in when i got it was a melling m55hv After I pulled it down the 2nd time I replaced it with another NEW Melling m55hv.
I have seen low oil pressure with excessive clearances, but normally the oil pressure drop is directly related to the temp. the warmer it gets the lower the oil pressure.. This thing seems to just suddenly decide to lose pressure, the gauge goes down like the second hand on a clock, going from pointing straight up to 0 in about the same time the second hand on a clock would go from 12 to 6. Bumping the throttle makes it jump about ten psi, but it continues to fall after. IE if the pressure has dropped to 40 it will jump to 50 when I hit the throttle.. if its at 30 it will jump to 40, then resume falling.
with such rapid loss I assumed there was a cam bearing problem, which is why they were replaced. I am going to start tearing this back down today. 80% chance of rain so good day to be in the shop.





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I'm happy to see it back up, sure hope it lasts.
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