I Can't Get Parts So Can I Change Pumps?

by Paul S
(Northwest Illinois)

919.16600 parts diagram

919.16600 parts diagram

I have a Craftsman Model 919.16600 6.5 Hp 60 Gallon Twin Cylinder Oil Free Compressor.

Apparently, the ACG-6 Inner Counter Balance failed, taking the cooling fan with it. This counterbalance is No Longer Available. I've been looking all over, and nobody has one. Nobody.

So now I'm trying to figure out if I can salvage the motor and the tank by installing a totally different pump. It seems that the shaft on the motor would be a standard size that would work with a different pump. Maybe I'd have to reorient the motor and do some welding on the frame...

Is this feasible? I'm having trouble coming up with the correct search terms. When I search for compressor pumps I get stuff that looks totally different than my current pump, (mostly belt driven). I'm not sure what I should be looking for.

Anyone have any experience with this? I have a second compressor to use in the meantime. I'm not interested in buying a new compressor at the moment, I'd rather fix this one as a side project.

Comments for I Can't Get Parts So Can I Change Pumps?

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Apr 15, 2016
by: Doug in s.d.ca

...that you're not in a hurry.

Good luck.

Apr 14, 2016
Counterbalance Failed During Normal Operation
by: Paul S

The counterbalance failed during normal operation. It was loudly doing its thing and suddenly it was even louder with a lower pitched buzzing. It sounded so angry I turned it off at the breaker rather than approach it. At first, I had hoped a fan blade had come off or something nice like that, but when I got the cover off I found the counterbalance in two pieces; it failed at the place where the casting was thin. It took off about half the fan's blades and slightly gouged some of the aluminum parts.

I think the chances of successfully fabricating a replacement would be near zero. It is a fairly high grade casting and while I've always wanted a forge, I'm pretty sure this one would be extremely difficult since balance and weight are going to be very important.

You probably have the right idea; since I'm not in a hurry, I should just look for a similar model to cross my path.

Thanks for correcting my model #.

Apr 13, 2016
pump on 919.166600
by: Doug in s.d.ca

It's a 919.166600, BTW.


Looks like a common failure. Any chance you can fab one?

How did it fail, anyway?

FWIW, I've never seen a whole direct drive pump sans motor. Maybe make yourself a list of units that use this part and search for used, with a broken something else.

Good luck.

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