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Oil pressure drops after warm-up

Tiny
DC42
  • MEMBER
  • CHEVROLET TRUCK
Put new oil pump and screen in 1975 chevy c-10 and oil pressure still drops now motor knocking just a little. When I put new pump on at first it sounded though it would stop but once it warmed up it starte knocking again. Took valve cover off on right -side it seems to be oiling but could not tell if was clogged or return hole clogged. Can you help me?
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Monday, November 5th, 2007 AT 3:02 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
One a knock always a knock, a new oil pump will not fix bad bearings! Either a connecting rod or wrist pin is bad. Oil pressure always decreases as it warms up!
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Monday, November 5th, 2007 AT 4:26 PM

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