77 Corvette plug bolt engine question
Forum: C3 Engines, Driveline and Handling
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At the rear of the engine block there is a small square plug bolt. We think that oil is leaking from it. What is that plug for?
Can remove it and reseal it with a new plug bolt?
Thanx,
Anni 77 Red Corvette
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Is this on the driver side, by the oil filter? If so, it is the location for the oil pressure sending unit on some cars, but not all. You can remove, and seal the plug with teflon tape, or any number of sealants.
Joel Adams
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Adam's Apple .... I beleive so. It's just below and right of where the distributer sits if your standing in front of the car. It's good to know that we can remove it and reseal it with some teflon tape. Oil leaks are not acceptable 
Thanx!
Anni
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V
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Joel was talking about the fitting down by the oil filter, but the good news is that yours is also an oil gallery hole, and can also be sealed.
Larry
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#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Yup...I thought you were referring to the one on the bottom driver side of the block, but the one at the rear of the intake is the same...just a different location!
One thing tho...if you think that plug is leaking, by all means seal it. However...unless it is actually loose, it's not likely it is leaking. A more likely leak is the rear of the intake manifold, where it meets the rear of the engine block.
Another possible leak is the distributor itself. Be sure there is a paper gasket on the distributor where it fits into the intake. Without the gasket, it will likely leak a bit there.
hth
One thing tho...if you think that plug is leaking, by all means seal it. However...unless it is actually loose, it's not likely it is leaking. A more likely leak is the rear of the intake manifold, where it meets the rear of the engine block.
Another possible leak is the distributor itself. Be sure there is a paper gasket on the distributor where it fits into the intake. Without the gasket, it will likely leak a bit there.
hth
Joel Adams
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