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My fuel pump is squirting oil all over my engine block out the small vent hole. Would anyone know why????

Split in diaphragm? If there is, could be sucking fuel into sump(pan).

Good Evening all...If you think that you have gas in your oil, don't drive it until you can drain the pan(sump)and put in new oil...very inexpensive insurance...Ernie in Arizona

The lever and linkages which operates the pump are exposed to oil in the crankcase. The chamber where the linkage sits is separated from the areas the diaphragms sit and the chamber they work (which is vented to outside air) by an oil seal around the rod(s) that operate the diaphragm(s). The first guess is a seal has failed allowing oil to enter the vented diaphragm space and the pump is need of a rebuild.

If you have a dual pump with the vacuum portion it is also possible the vacuum diaphragm has failed and vacuum from the intake manifold is pulling oil into the pump and the seals cannot contain the excess. As has been mentioned there could be fuel getting into the crankcase too if a diaphragm has problems so best repair the pump before more driving.

Here are views of the pumps used in 40 models. You can see the location of the oil seals in each pump.

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That's it, thank you Howard....

Hi guys;
I am taking this moment to thank each and every one of you for the help provided with our 1940 110 Sedan. She is on the Road...certified and runs like a charm.
It never would have been done without all of your help and advice.
THANK YOU ONE AND ALL

I'm not sure if I got the photos on here right but I tried...lol

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Hi paka40,
To see the pictures they need to be gif, jpg or png. So I move your photos over from the zip file.
Great looking car!
Wes

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Thanks for doing that. Yes, welcome it..