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1968 GMC P/U.

Tiny
JOHN FOX
  • MEMBER
  • 1968 GMC
My 1 1/2 year old, 305 CI long block, is starting to collect emulsified oil in the rocker arms. This is not being seen on dip stick, or in drained oil.

Is this a intake gasket, or head gasket problem?
Please don't tell me I might have a cracked block!

Thank you
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Friday, December 15th, 2006 AT 6:14 PM

1 Reply

Tiny
MICKEY-D
  • MECHANIC
  • 304 POSTS
I believe what you are describing is sort of normal condensation buildup from a poorly vented engine. Make sure the valve cover vent is clean, and the PCV valve is working properly.
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Thursday, January 7th, 2010 AT 11:42 PM

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