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Buick Turbo Tech General technical support for the 86-87 Buick turbo cars |
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#1
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Oil Leak
Anyone have an idea what is causing this leak? The valve covers and the intake are not leaking and it is above the head gasket. Could this be caused by a bad valve seal? The pic is taken looking up at the #5. Also, the spark plug is dry.
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#2
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Damn.... I twisted my neck trying to look at that pic.. Most likely the breathers are dripping...
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Jack Cotton Cottons Performance 413-789-0531 |
#3
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Jack,
It's not the breathers, valve covers, intake or heads. All are completely dry. The oil appears to be coming from inside the exhaust header at #5. Could this be caused by a bad valve seal? |
#4
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I can't imagine the oil being that clean if it was traveling down a hot exh valve, and I can't see there being that much oil above the exh valve seal when the motor is not running. It seems like maybe there is a small crack in the head where the bolt threads in.
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'86 Gn with an RPE bullet. Almost everything else is from Cottons. 100% street car! |
#5
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Back of the intake??
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Brian Keep it shiny side up, but show them your dirty side once in a while. 11.3@123mph on 195/75/14" whitewalls. Yes, 195s! 11.2 on the big giant slicks. What's the point? Maybe I'll go back to the whitewalls. They are lighter and have less rolling resistance. |
#6
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Quote:
No, everything is dry on top. |
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