sp 11 vacuum pump

[Little Ems Maples]

hi all.
I have a sp11 vacuum pump that pulls good vacuum but the problem i am having is it blows oil out of the top hole and a over flow hole that is behind the sight tube in the crank case. i have the oil about 1 half an inch in the sight tube. it seemed like it was a little warm so i put a good size fan on it and it stays cool but i am worried it will run out of oil and blow up my pump. anybody have any ideas on what could be the problem. Thanks

[BreezyHill]

Can you send me a pic of the pump. My dad was a surge dealer and there were several pumps that I saw and don't recall the model numbers.
I have a bb2 that did the same when it would get hot; but a fan would keep it cool on those warm days at the end of season.

A box fan on high will usually drop a pumps temp to a good level if the air is cool enough.

Ben