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Go to your local hydraulic etc. strore and ask there. Here in Finland our local hydraulic's shop's sell those sightglases with o-rings.

we supply kinds of oil sight glass and breather vents.

More information,please visit website removed or email to me e-mail removed


Thank you Tony

That's good news.

I had an old Welch Duoseal pump that dribbled oil everywhere. Never had to change oil in it, just topped it off now and then.

The head on my pump is new. Unscrewed the brass hex nut holding the sight class...no fricik' O ring! Scavenged the O ring from the old head ...screwed the brass back in...leak stopped.

If you do it hvaclover lets us know how it goes, mine is leaking as well

Originally Posted by AC5096

Yes

You should be able to hook another pump to the oil fill plug threads, Maybe???

Hell yeah! No maybe about it. That's a great idea...have to keep the oil level just below the sight glass to maintain a tight seal from the rest of the pump.

Originally Posted by hvaclover

Robinair 15600....I think you mean pull a vacuum on the pump needing repair...correct?..cause the sight glass is not on vacuum side of pump....least that is what I was told by a service agent of Robinar.

Yes

You should be able to hook another pump to the oil fill plug threads, Maybe???

Robinair 15600....I think you mean pull a vacuum on the pump needing repair...correct?..cause the sight glass is not on vacuum side of pump....least that is what I was told by a service agent of Robinar.

What brand and how old?

Maybe some JB weld and pull a slight vacuum on it. I repaired many studio apartment size refrigerator evaporator coils with this method.
May not look to pretty.

Leaky oil sight glass on vac pump

Any body got a fix for it? The glass is pressed into the shell.