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Oil in cooling system

Tiny
TIRE44
  • MEMBER
  • 1969 CHEVROLET CORVETTE
  • 0.6L
  • V8
  • 2WD
  • MANUAL
  • 96,000 MILES
My car listed above for the past three years has been getting motor oil in the cooling system. But I never get antifreeze in the oil pan. Motor was rebuilt but problem is still there. It is a 427, 390 hp, 4 speed. Don't know what to do to correct the problem. Any help would be appreciated.

Mike Bednar
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Friday, September 4th, 2020 AT 2:00 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

Just curious. When the motor was rebuilt did they sonic check or magnaflux the block and heads to check for cracks? Sounds like there might be a slight crack allowing oil into the cooling system. Hopefully you don't have leaking head or intake manifold gaskets. Hope this helps and thanks for using 2CarPros.
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Saturday, September 5th, 2020 AT 11:58 AM

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