air compressor pump

[fubar008]

My compressor has been taking longer and longer to build air and I've been getting oil in tank. I'm thinking to just replace the pump rather than buy a whole new compressor. Can I buy a bigger pump or do I need to get the same one? wheres a good place to buy one? Thanks

 

[bulldogr6]

Research the pump and see if you can get replacement parts for it and consider a top end replacement.

Sent from my E6782 using Tapatalk

 

[SGKent]

have you checked the filters? That will cause low pressure and **** oil up into the cylinder too.

 

[engineer2]

Check the tank check valve too. Heat can kill them.

 

[Citation]

That's a common Campbell Hausfeld pump so parts should be easy too get. I would check the check valve and pull the head. If the cylinder walls are good you might just need a valve plate.

 

[fubar008]

maybe a stupid question but what exactly am I looking for with the check valve? I have not taken anything apart yet.

 

[EOC_Jason]

maybe a stupid question but what exactly am I looking for with the check valve? I have not taken anything apart yet.

I would just make sure oil & gunk have not built up on it. Usually the check valve is just a ball and a weak spring.

I agree, you probably need to change your air filter if you haven't done that in a long time. Likewise make sure the belt is tight.

I would order new head gaskets and pull the head too, your reeds have probably encrusted with oil, they are easy to clean though. You might also find an issue with one of your reeds which might be causing the issue.

Refill with a NON-detergent, preferably synthetic compressor oil. Available at any big-box store, Amsoil online, or some auto-parts stores will carry it. Don't use regular automotive oil as it has detergents and the foaming will cause oil to reach the head, cook, and become a black crusty mess...

 

[metalmagpie]

You already saved the money when you bought that one. Scrap it or sell it as a project to someone dumb and buy a Quincy. Game over. Done.

metalmagpie

 

[sberry]

Take the head off, run it and see if oil comes past the rings and pools on top of the piston.

 

[pancho400cid]

A pump with more delivery will require a bigger motor. As said, those CH pumps are common. The motor you have is about a 3.5 HP in terms of "real" HP I think. Post the full load amps (FLA) or a pic of the nameplate on the motor to make sure. That 7 HP number on the tank is the "max developed" HP which is a BS number motor mnfr's used to sell motors.

If you have the original manual or can find a model number etc., you can google and find a replacement CH pump.

If you really want to "poor boy" it - and I'll probably get flamed for saying it but.... Harbor Freight makes pumps that get OK reviews and will work for light duty use. Not sure of your needs. Forget servicing them if you go that route. Your existing pressure switch will mean the on/off pressures would be same as now. You have to read their manual and be sure the speeds are right - very important.

https://www.harborfreight.com/3-hp-145-psi-cast-iron-twin-cylinder-air-compressor-pump-60383.html

PS - If I had a bunch of oil in the tank I'd pressure wash and drain it... I'm skeered of flammables under pressure. I'll probably get flamed for that comment too 'cause millions of people run flammables in their tanks all the time and only a few of them get blown to smithereens...

 

[chaosracing]

Its a common pump, made in China. My dad's compressor had one to (forget name brand) but that pump is used on many compressors from Harbor Freight, to Job Smart, to Ingersoll Rand and so on. My dads did the same thing. Reeds inside were cracked. Could not find parts even though it is common and still newer. Wound up just getting a new pump for it.

 

[bob15]

You already saved the money when you bought that one. Scrap it or sell it as a project to someone dumb and buy a Quincy. Game over. Done.

metalmagpie

Sell the compressor without telling the looker about the issue at hand? What happened to honesty and integrity?