Re: oil leak on 305E exhaust manifold
Quote:
Originally Posted by sclor
GMCNut:
Question would be why the No. 1 cylinder is throwing that much oil out of the exhaust? What other symptoms are you having? Is exhaust pipe putting out a blue smoke screen? What does the spark plug from that cylinder look like? Have you tried a compression test on that cylinder? Have you checked the valve lash on that cylinder? Hopefully those questions help. What you see is out of the ordinary. I think you need to do some more fact finding to decide what is causing it.
Regards,
Steve
New Orleans
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Thank you Sclor - oddly I never see any Blue smoke to indicate the oil is being burned....I have a mechanic who knows these engines, and I will have to get him to check these ideas you have I guess. The truck runs like a top so no complaints and its the most dependable truck I have ever owned - if there was ever a perfect running engine this 305 E seems to be it, but it might be about to come apart and I just don't know it too 
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My 60-66 GMC Projects:
1960 1001 Custom Cab short wideside BBW, 305A V6, factory PB, Hood Jet, Radio and Hydramatic.
1962 K1000 4x4 short wideside, BBW, 305D w/ SM420, PTO Winch
1965 1500 Custom Cab w/ Factory assembly-line installed AC, PS & PB, and rare GMC sliding rear glass
1966 1001 Custom Cab short wideside, w/ 351E, PS, PB, AT, super rare Sport Trim option interior (bucket seats)
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