Webster Compressor Queston

[NewfoundlandLaw]

Hey All

My father acquired a very old compressor and we are trying to determine whether it is usable. It seems to run fine and builds pressure fairly quickly. Seems like there are no leaks and overalll it appears to be a serviceable machine.

I've attached a picture of the compressor to this post.

It seems to be a Webster 65, but I may be wrong.

After looking around this forum it seems like there are some knowledgeable Webster owners here.

We were wondering:

1. What is the coiled housing with the brass plug on the right side of the motor? (I've circled it in black in the picture.) I assumed it is a water condenser, but I'm not sure.

2. What type of oil should I put in this compressor? Webster went out of business in 1988 so I'm assuming there are no manuals to consult.

Thanks for your help everyone!
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[NewfoundlandLaw]

the image wouldn't attach to the first post so here is the image:

 

[dr sportster]

There is oil labeled as compressor oil. Usually a straight 30 weight.

 

[Steve@Advance]

Can't really tell from the picture, but if it is a 2 stage pump, that would be called an "intercooler". It cools the air as it transfers from the 1st stage to the 2nd.

As for oil, I am a firm believer in synthetic compressor oil. It runs much cleaner, doesn't build carbon deposits. Otherwise 30 weight non detergent will work.

 

[markiz41]

What Steve@Advance said. The brass plug is to drain the intercooler. Nice unit, good luck