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Old 07-10-2024, 07:16 PM   #4
GASoline71
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Join Date: Sep 2007
Location: Whidbey Island, Washington
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Re: 1970 Chevrolet C20 Pickup - Motor Leaking Oil

Small Block Chevy's just leak... it's what they do. Especially if it's the original engine with high miles and all original gaskets. A lot of them leaked in spots very shortly after leaving the show room floor.

A lot of leaks at the rear of the engine are caused by leaking valve cover gaskets, or the oil pressure sending unit on the back of the block behind the intake manifold.

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

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I would never rebuild a 305.
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I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
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Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
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Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
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