I have a Coleman Powermate air compressor model BL0603310.01. It has a blown out piston ring. Kits are expensive, hate to spend too much on an outdated compressor. Any ideas? Or equivalent rings?

Hi mjschulte815

Here are a few things to check, you may have already checked some of these.

Electricity...Compressors will run best with full 115Vot 15AMP/Or 220V electrical supply from a circuit, over the shortest electrical cord as possible.

Air Leaks..Place your ear close to the compressor and listen for air leaking, if you hear air that is not normal and means you have to locate and repair whatever it is that is leaking.
Check the air unloader valve... The air unloader valve will blown out air when you turned off the compressor, that is normal.
But it should not have air leaking out of it all of the time. If so then it is faulty and in need of repair/replacement.

Valves...If either the intake or exaust valves fail, breaks, or fails to seat, then your compressor will run 24 hours a day and never build up to the correct pressure for shut-off.

Gaskets...Check to see if your gaskets have failed.
You could have a gasket failure between the pistons and you will never know it because it shows no external air leak.
If this situation happens then the air will only cycle between cylinders and never build up the correct air pressure.
One way to check the gasket is remove the air filter, then put your hand over the intake.
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Bud
If correct then it will **** you hand against the intake.
If the valve or valves have failed then you will feel the air sucking in and blowing out.

Piston Rings and Cylinder...The piston rings could be stuck,broken, or worn and not allowing the correct pressure to build up in your tank.
A worn cylinder will also contribute to the problem of pressure build-up.

Pressure Switch...Check for air leaks at the pressure switch, it has a rubber diaphram that can fail and leak air out of the system.
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Bud

There may be few causes for this.
1. The piston rings are worn out. If lot of oil comes in your receiver tank ththis is the indication to tell you that the piston rings and oil scraper needs to be changed.
2. The leaf springs strip is broken or worn out. If air is coming out of the suction filter open the compressor head with proper marking check and then fix back the same way you opened it.
3. One of the gasket is damaged or broken. Once again you will find air blowing out from the suction filter.

The cylinder /piston with teflon/silicone ring is install dry. Insert the piston at an angle into the cylinder for easier entry. Good time to also replace the bearing even though it may spin fine. This bearing is the same as used on many alternators and is available at auto parts stores. Use the bearing number on the side of the bearing. Its not expensive. If you do not have a bearing puller, use dremmel tool with metal cutting blade to cut outer ring then inner ring. Before you tighten all the bolts turn the crank so that the piston goes thru the motion of full rotation. If everything seems good to go then tighten all bolts, plug-in and give-um air! Good luck with your repair.

You should be able to download a manual from this site:

http://www.powermate.com/productmanuals.php?cat_id=1

The VLF1582019 is a 20 gallon model but you should confirm if this is the model number of your unit.

Nothing makes me grunt like "Tim the Tool Man"more than having a air tool in my hand." More Power!" The first (andonly) compressor I ever bought was used and failed to build up pressure. I hadlittle idea how it worked. Anyone with a little mechanical knowledge can workthrough it with the parts manual. The. Coleman Powermate Manuals are here. With the parts manual your search will befruitful. Do a internet search for suspect part numbers. You will find suppliers. OneI've used is "Arkansas Outdoor Power Equipment" They have many parts list for you to dig through. The odds are there is a "Tool Supply and/or Repair" in your area where you can take your defective part.

Diagnostics: After you let it pump for a couple minutes turn it off and listenfor leakage.Listen quick and close. If it is leaking bad it may only be obvious for a couple seconds.

Lines and connections can leak. The Regulator (adjustable knob) can leakinside. The "Pressure Switch" can leak (usually at the valve bleeder). If it's under pressure it canleak. All leaks must be fixed. All these parts can be rebuilt or replaced. The "PressureSwitch" controls at what (low) pressurethe compressor kicks on and what (high) pressure it stops compressing.A compressor that pumps and fails to build up the pressureis leaking air as it pumps. Watch the gauges as it pumps. Does it reach acertain pressure and then no higher? If you do not hear leakage when it is offbut it fails to build up 80~90 psi in a reasonable amount of time it is quietlikely it is leaking at the piston as it pumps. A (piston assy, O Ring, and cylinder)repair kits is available online. Or you can check with local "Toolsservice/sales" stores for parts.

Remember a dusty environment requires the filter element becleaned more frequently. Run it without a filter and you'll be replacing thepiston assy sooner.
Repairing it yourself is much more manly (and less expensive) than replacing it

A search of your model number turns up a powermate compressor. Unfortunately the piston rod is not available as a seperate part, you have to order the entire pump/motor unit. The only place I could find it was at this link: http://www.ereplacementparts.com/powermate-vpp0200604-single-stage-oil-lubricated-air-compressor-parts-c-117046_117047_117049.html.

not sure but it sounds like the piston ring is worn out or you might have a bad valve.
p.s. its not your typical valve like in a car.

is it a wet compressor, check the oil.

indicates the pump has lost its capacity, assuming the line from the pump to the tank is not leaking,,, a few things could have happened, most likely a valve in the head plate has broken, or head gasket has blown. Third would be he compression ring on the piston has worn out and needs to be replaced. advise you get a parts breakdown on the pump and have at it ad start looking for something broken in the head first.

Just some information that may lead you to parts, The compressor sold thru Lowes (Kobalt) must be the same mfg. because the parts look like they would interchange. A trip to Lowes may verify. Maybe they have a compressor with bad motor for your parts. Good Luck

The ring is gone on compressor. You can buy replacement pistons and rings from colemen. Comes with instructions.Good luck