Oil coming out dipstick?

by Jim
(Anacortes, WA)

Husky Pro VT631503AJ (Photo: www.auctionflex.com)

Husky Pro VT631503AJ (Photo: www.auctionflex.com)

Bought an upright Model VT631503AJ Husky Pro 26 gal, 2 HP, cast iron pump, compressor---- used. It had dirty oil all over the tank top and the dipstick was loose and appears short, possibly broken---i.e., vented but with no "condenser" or oil catcher on top of dipstick vent hole. The dipstick also does not seem to fit into the hole for it. I changed the oil, replacing the quart that I drained out. Then, I cleaned all surfaces.


When I run it, oil splatters out of short dipstick. This explains why it was so dirty. It does the same thing with the air filter removed, so probably not plugged air filter. The oil in the sump looks like there are small bubbles in it.

Should there be oil splatter? Is the dipstick supposed to be vented and yet supposed to catch and return oil to the sump? If so, I will buy a new dipstick. If that is not the fix, then something more serious is happening. By the way, it sounds fine to my inexperienced ear.

Finally, thank you for your help. Jim
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Hi Jim... my experience is this.

If you have not overfilled the oil sump so that the vibration of the compressor operation splashes oil out of the oil fill cap, the it seems likely to me that the piston seals are worn.

As the piston reciprocates, oil on the wall of the cylinder wicks past the seals into the air, and ultimately ends up in the tank.

If oil can get through one way, then air can get through the other, and if enough air is wicking past the piston seals into the sump it pressurizes the sump a bit, and oil flows up and out the fill tube. The oil is splattered by the compressor vibration.

If there is a cap on the fill tube, and that cap is vented, then it should work.

My money is on badly worn piston seals allow a lot of air into the sump, driving oil up the tube.

Cheers,

Bill

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Oct 29, 2012
Oil Splash out of dipstick.
by: Jim

Bill,
Thank you for your comment. I think I found the problem. I replaced the oil in the one quart volume I had drained, since I had no manual. Last night, I found a manual online for the cast iron pump on my compressor. It stated an 8.5 OZ fill was appropriate. I drained out about 23 OZ and no more splash. One last question--overnight, the pressure bled down from about 130 lbs in the tank and 70 lbs line pressure to nearly nothing. Is that OK? It was slow. I had checked it after two hours and it was down a about 15 lbs. Thank you.
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Jim, overfill is a common problem. Good that you resolved it. If you have soap tested all connections and found no leaks, my feeling is that your compressor check valve is leaking a bit. Removing, cleaning and replacing it, if there are no mechanical issues with it, should resolve the issue. Drain the tank and shut down the compressor before cracking the fittings at the tank.

B.

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Husky air compressor wont turn on

by jeff
(temple hills md)

New compressor installed the electrical and it wont start model is a 60 gallon with a 230 v motor

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Bill says....

Hi Jeff. This kind of thing in a new air compressor drives me nuts!!

OK. Any air in the tank? If so, open the drain and bleed down to zero PSI.

You say you installed the power supply. Are you getting power to the pressure switch?

Now that the tank is zero PSI, the pressure switch should have tripped, and you should have power flowing to the motor circuit. Is this happening?

Please post a response here so I can follow the thread.

Cheers,

Bill

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Husky upright oil less air compressor problem ~ won't restart

The compressor will turn on and fill the tank. After using an air tool such as an impact wrench when the pressure gets low the pump will not turn back on to refill the tank. Have to shut it off for ten minutes and turn it back on to refill the tank.

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Bill says...

Curtis, when the compressor reaches the cut out pressure, do you hear or see the unloader valve dump the over-piston air when the compressor shuts off?

Not sure about the unloader, see UNLOADER VALVE.

Please post your response here so I can follow the thread.

Cheers,

Bill

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not filling past 50psi

by bob campbell
(columbus oh)

I have a 26 gallon huskey compressor that hs an issue with only filling to 50 psi then i have to unplug for a min and plug back in to gain another 10psi . how simple is it for myself to fix the problem ? thank you bob from col. oh

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Bill says...

Hey Bob.

What happens when the compressor gets to the 50 PSI level? Does it shut off, or keep running, but the pressure goes up no further?

Answer here as a comment if you would.

Cheers,

Bill

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Oct 08, 2012
Not filling past 50
by: James Long

I have the same problem, my Husky electric air compressor (5hp. 22 gal) builds up to 50 psi and keeps running.

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