Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks
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Is it possible for a mechanical fuel pump to draw in oil from ???? & make engine smoke? Sounds crazy but after I installed new one engine smokes, coincidence? Thanks
I dont know of any connection between oil and fuel inside the pump unless the diaphram has a hole but that would put fuel into the sump not oil into the fuel.
Tony
Thanks Tony
What color and type of smoke?
Oil will be bluish.
Too much gasoline (too rich) will be blackish gray and smell different.
If your new fuel pump produces significantly higher pressure than the old one, it will raise the fuel level in the carburetor, giving an over rich fuel mixture.
Ole S Olson
Saskatoon, Sask, Canada
1139 old site posts
Blue Smoke, probably rings
@macbubba if only at initial start possibley valve stem seals or worn valve guides but if after running you could well be right.
Tony
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