Technical Air compressor

Hey guys, I know this issent car related, but I was thinking I may find a answer here ..
My air compressor is on its last leg, it takes forever to pump up, Im thinking the rings are wore out ..
So I was wondering if there is anything I could pore in the cylinder via the air intake filter, to help seal the rings ?
Thanks guys .
Mark

 

You can get a new pump at harbor freight for cheap!

 

Molten lead will seal them right up.

 

belt tight?

 

I had the same problem with a 25 year old 5 hp pump.

After bring home a Harbor Freight pump. I decided to look a the original pump. Found that the heads bolt were not as tight as they should have been.
Removed the head and saw that the gasket had split between the reed valve plates. I made a gasket, out of high quality gasket material. had a enough of the old gasket to Exacto Blade cut a new one.
Needless to say the pump now works as good as new. The old Compressor, ran and average of 40 hours a week for over 25+ years.

The inside the old pump was clean as it was a new. Cylinder walls were perfect.

About a week after the rebuild, ran in to a compressor pump rebuilder. He said most problems are, the gaskets between the reed valves as the gasket is not very wide at that point, not a mechanical failure
.
He recommended to all, to check the tightness of the bolts, a little more then, 25 years of service ! DUH

Needless too say I returned the Harbor Pump

 

most of the compressors I found put out to trash the airfilters were plugged and the reed valves were burned out and charred gaskets , only if it knocked or try to blow oil out of the crankcase vent would I mess with the piston ***y . and the rebuild kits are cheaper than a replacement pump most are about 1/2 price of the pump from HF ( 25-50 bucks ) and often include a new reed plate too . one compressor the filter was just plugged with paint overspray and thats all it needed besides a oil change . $499 sears oil type single stage 2 cylinder 30 gallon thrown out because of a $5 filter .

just get the numbers off the pump tag and look up the parts

 

I had the same problem of the compressor taking a long time to pump up. On my compressor the reed valves were sticking and worn. After fixing that the compressor ran for another decade or so before the tank rusted out.
Note to self: don't forget to blow the water out of the new compressor.

 

I noticed my 20 year old 5HP Black Max was taking a long time to pump up. When I took it apart to check it out, I found a leaking head gasket and the check valve between the tank and compressor was leaking. A few cents worth of gasket paper and a little tweeking of the valve and it was running good as new again.

 

Since nobody said it , it is obvious that what you let it **** in goes through the system .

 

Maintenance

 

Lot of replies,
Thank you all for the help.
Ill check the head bolts and belts first, then if need be, pull the head and see what I see...
Thanks a million .....

 

I put a small k&n air filter on mine and clean and oil it once a month. A plugged up air filter puts a lot of strain on one and can burn stuff up over time. Think about doing that once you get it working right again.

 

Mine was taking a long time to fill, so it dawned on me the air filter hadnt been cleaned in the 4 years id owned it and it ****s a lot of overspray. Sears kid didnt want to look up what it took, so i bought a couple of common lawnmower filters and made new brackets, now home depot carries my filters year round, flows better too

 

Thanks for the tip, that is gong to come in handy.

 

Mine is taking too long to pump up but I know the pump is shot,one of the reed valves came loose after 28 years and destroyed the head but I found some used parts to get it going until I can get another pump. Its a little more noisier now after it ingested the valve and screws plus I have been seeing silver when changing the oil the last few years.