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`64 stock 283 Belair fuel pump

 
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 macbubba
(@macbubba)
Active Member Registered
Joined: 1 year ago
Posts: 7
Topic starter September 16, 2024 10:56 am  

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



   
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 TonyW
(@anthony-williamson)
Member Moderator
Joined: 20 years ago
Posts: 191
September 17, 2024 3:48 am  

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



   
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 macbubba
(@macbubba)
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Joined: 1 year ago
Posts: 7
Topic starter September 17, 2024 10:49 am  

Thanks Tony



   
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Stovblt
 Stovblt
(@ole-olson)
Honorable Member Registered
Joined: 6 years ago
Posts: 435
September 17, 2024 2:15 pm  

@macbubba 

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
1946 DR 3/4 ton stake
1139 old site posts


   
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 macbubba
(@macbubba)
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Joined: 1 year ago
Posts: 7
Topic starter September 17, 2024 8:16 pm  

Blue Smoke, probably rings



   
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 TonyW
(@anthony-williamson)
Member Moderator
Joined: 20 years ago
Posts: 191
September 18, 2024 2:50 am  

@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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