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02-13-2016 07:31 PM #1
CHR Member
- Join Date
- Nov 2010
- Location
- lebanon
- Car Year, Make, Model: 65 Nova big tire car 73 Nova big block
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- 44
7.5 professional rebuild 15K miles no oil pressure at hot idle
Hi guys,
I need your opinions on this one. I had a 95 7.5 out of my F250 totally gone through at a professional shop. No corners cut. After I put it back in I changed oil every 1K to 3K miles and used Shell Rotella oil. Runs great. Around 15K miles I noticed that I had 0 oil PSI at idle with a hot engine. Changed sending unit and oil/filter. Still 0 PSI at hot idle. Checked with a mechanical gage 0 PSI at hot idle. Now the part that drives me nuts. 1K rpm and the same great PSI as when just rebuilt. Bring RPM up to 1K and the gage snaps right up to 60 PSI.
What do you all think?
I should also say that when the thing drops to 0 PSI there is no valve noise no difference in sound what so ever.Last edited by twolaneblacktop; 02-13-2016 at 07:52 PM.
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