Help me reanimate this Quincy compressor!

[Tremelune]

I dragged home a QT-5 with a Balder motor...I'm very much hoping I'll never have to replace it in my life...or ever move it again! It's a daunting way to make air smaller.

I don't know too much about it, but I was told it ran well before it was unplugged. The wheel cage is pretty tweaked. I can't get a good look at the wheels or shafts, but hopefully they're not...Is there a good way to check or spin this thing without putting it under a heavy load? I'm familiar with car and motorcyle engines, but not this tractor.

My plan is to clean it up, put fresh oil in it, change the air filter, and...see what it does. Is there anything else to know about these puppies? I plan to leave it full unless I'm sure I won't be using it for weeks at a time. Its purpose will be sandblasting occasionally, powering my lift locks, and some air tools. If I get ambitious, I'll run some hard and soft lines around the garage to make hookups easier (and permanent).

Is there a way I can find out what year any of the components are?

 

[MacMcMacmac]

Looks like someone might have dropped it on its side and bent the crankshaft snout. The flywheel is wrong. Someone replaced it with a plain sheave with no finned blades. I'd hook it up electrically and spin it up before I would spend much money on it. Sometimes you can straighten the snout by putting a hydraulic cylinder between the flywheel and block and bending it back into alignment. Long term reliability??? I got a few down to a few thou doing this. Might be better to tear it down and use some sort of jig or a press. All else fails you could replace the crankshaft.

The setup looks OEM, so find the builder's tag on the tank and it will tell you what year the tank was built. The rest of the components should be nearly the same age. I don't think anyone holds on to stock for very long with lean manufacturing methods.

 

[Tremelune]

Well that *****. Guess I'll take the cage off and see if I can see/measure if it's square.

 

[cvairwerks]

A new crank is about 250$ if yours is bent and you want to rebuild it. New, the entire compressor runs between 1300 and 2600$.

 

[Wrench97]

Looks like someone might have dropped it on its side and bent the crankshaft snout. The flywheel is wrong. Someone replaced it with a plain sheave with no finned blades. I'd hook it up electrically and spin it up before I would spend much money on it. Sometimes you can straighten the snout by putting a hydraulic cylinder between the flywheel and block and bending it back into alignment. Long term reliability??? I got a few down to a few thou doing this. Might be better to tear it down and use some sort of jig or a press. All else fails you could replace the crankshaft.

The setup looks OEM, so find the builder's tag on the tank and it will tell you what year the tank was built. The rest of the components should be nearly the same age. I don't think anyone holds on to stock for very long with lean manufacturing methods.

What image did you see that in?
The only clear pulley image is of motor pulley no?

 

[csp]

Take the cage and belt off and spin the pump by hand to see. It should be smooth throughout the entire rotation. If you have that and the oil is clean it should be good on the bottom end.

Call Quincy for history on it. They are extremely helpful. You can also find manuals on their website. I recently acquired three Quincy's in my search for just one. They are great compressors.

 

[The Cobbler]

Looks like someone might have dropped it on its side and bent the crankshaft snout. The flywheel is wrong. Someone replaced it with a plain sheave with no finned blades. .......

What image did you see that in?
The only clear pulley image is of motor pulley no?

I agree. all I can see is the motor pulley.

 

[MacMcMacmac]

I agree. all I can see is the motor pulley.

Well, scrambled eggs all over my face...I thought it was the compressor end. When the pulley didn't line up with the grill on the belt guard I thought it was wobbly. Looks like bad advice on my part all around. My apologies. I'd like to blame it on pandemic shutdown beer goggles, but sometimes you just have to admit you screwed up.

 

[Tremelune]

This is all still great info! I'm gonna dig a bit further and see what I find.