i have a 3gal.air comp. 1hp. motor sears - won't go above 60 PSI

the motor won"t kick off & the gauges wont go obove 60#

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See the site map page, look in the Troubleshooting section, and read the pages relating to "will not build pressure".

There are many reasons why an air compressor will run and not build enough air pressure in the tank to reach cut out pressure.

Since you have included virtually no info about the compressor symptoms, you need to fine tune your query a bit for me.

Post additional info as a comment here so I can follow the thread.

Cheers,

Bill

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sears compressor mod# 919165611 wont build pressure above 60 lbs.

by Kenny
(Rockwall,Tx. USA)

I have a sears compressor mod# 919165611.

I would like to know which parts would I need to fix the problem.

Compression ring,cylinder sleeve,etc. The electric motor works fine I think the compressor side is just worn out. I looked on the parts fish on the web,but I,m not too sure just what to buy.

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Bill says...

Kenny, I can't tell you what to buy for sure, as there are a number of things that could be causing your Sears compressor to run and not build pressure.

Let's start with one that doesn't cost you money.

Pull off the air intake filter, make sure the filter is clean, and then start the compressor with the intake filter off. Is air being pulled into the intake port on the top of the pump, or is it being puffed back out too? Comment here with a response, and we'll press on.

Cheers,

Bill

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Model #919.165080 5.5 HP 30 gal Runs but No air pressure

Sears Model #919.165080 is a 5.5 HP 30 gal single cyclinder / oil free. Serial #2002050859 It uses a pump #AC0616.

It starts, runs but will not build any air pressure.

Also the motor has a different sound than it use to. Bought new years ago for approx. $300.00, but I sure it hasn't been used over 30 or 40 times for only short periods so it can't be wore out. Any help would be appreciated.

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Bill says...

Ken, always start with an empty tank. Please drain yours, close the drain, and start it again.

If no pressure being built in the tank at all, check the intake port to see if it is sucking air in as the piston reciprocates.

If that feels OK, shut off the compressor and pull the line from the pump to the tank. Start the compressor. Using a piece of soft material (not your bare finger or hand) try to stop air from flowing out of the pump head. If you can easily do so, then it's likely the piston seals may be going.

The compressor might not be wore out, but depending on the condition it was in when it was stored, may have an impact on it's condition when you go to use it again.

Maybe post a comment here as to your success or lack thereof?

Cheers,

Bill

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