1970 Chevrolet C20 Pickup - Motor Leaking Oil - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lil hoodlum · 07-29-2024, 03:19 AM

Quote:

Originally Posted by 72c20customcamper

I really like the Dawn Powerwash for degreasing . Didn’t think it work all that well but I was impressed. If you really want it clean use a heated pressure washer. I rented one and it was well worth it never even took it off the trailer hose was 20 ft long . Like others have said it’s most likely the intake /valve cover or oil line .

I also agree, sbc usually like to leak around the intake and/or valve covers. My 327 still likes to mark it's spot wherever I park. Recently replaced valve cover gaskets and that helped a bunch.

72c20customcamper · 07-29-2024, 08:17 AM

Quote:

Originally Posted by lil hoodlum

I also agree, sbc usually like to leak around the intake and/or valve covers. My 327 still likes to mark it's spot wherever I park. Recently replaced valve cover gaskets and that helped a bunch.

The motor I took out and replaced ran well but was leaking a lot . Guess the prior owner tried to seal it up . Big ol gob of RTV on the valley of the intake front and back and it still was leaking . I’m going to reseal it and put it in the Anniversary truck

ggalv · 08-18-2024, 11:54 PM

Hi, regarding the how many miles question the odometer has 40426, then it has an 8 with a white background. Not sure how many miles would this be?

Below is a picture I took today, not sure if this might be where it is leaking oil. I had the starter replaced recently, and it was covered with oil. Should some hose or some kind of cap go in the valve cover opening (circled in red)? Also, there seems to be a decent amount of oil in bolt (circled in red).

Appreciate your advice, on where this oil might be leaking from?

Greasey Harley · 08-19-2024, 01:05 AM

Best engine degrease I have ever found is Totally Awsome from the Dollar store.
I'm dead serious, this stuff will amaze you!!
With a cold engine mist everything with cold water.
While it's still wet start spraying Totally Awesome everwhere.
Let it set for about 5 minutes then spray it off with cold water and watch the grease and grime melt away.
Depending in how nasty the engine is, you may need to hit it several times, but it WILL come clean.
https://www.familydollar.com/las-tot...20oz/FD1412251

08-18-2024, 11:54 PM	#3
ggalv Registered User Join Date: Feb 2008 Location: Los Angeles, CA Posts: 35	Re: 1970 Chevrolet C20 Pickup - Motor Leaking Oil Hi, regarding the how many miles question the odometer has 40426, then it has an 8 with a white background. Not sure how many miles would this be? Below is a picture I took today, not sure if this might be where it is leaking oil. I had the starter replaced recently, and it was covered with oil. Should some hose or some kind of cap go in the valve cover opening (circled in red)? Also, there seems to be a decent amount of oil in bolt (circled in red). Appreciate your advice, on where this oil might be leaking from? Attached Images

08-19-2024, 01:05 AM	#4
Greasey Harley Registered User Join Date: May 2013 Location: Post Falls, ID Posts: 889	Re: 1970 Chevrolet C20 Pickup - Motor Leaking Oil Best engine degrease I have ever found is Totally Awsome from the Dollar store. I'm dead serious, this stuff will amaze you!! With a cold engine mist everything with cold water. While it's still wet start spraying Totally Awesome everwhere. Let it set for about 5 minutes then spray it off with cold water and watch the grease and grime melt away. Depending in how nasty the engine is, you may need to hit it several times, but it WILL come clean. https://www.familydollar.com/las-tot...20oz/FD1412251 __________________ Insert clever text here:



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