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Weak air compressor?

 
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twvandusen



Joined: 20 Sep 2017
Posts: 10
Location: Clark Fork Idaho

PostPosted: Sat Sep 08, 2018 11:06 am    Post subject: Weak air compressor? Reply with quote

My Nanchang can’t get up to 30 ATMs for takeoff. Several leaks were fixed during a recent annual but a small leak still exists. The compressor may be weak and unable to compensate for the leak. Is there a way to test the compressors performance?

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Keebler



Joined: 26 Oct 2018
Posts: 2

PostPosted: Fri Dec 14, 2018 11:12 am    Post subject: Re: Weak air compressor? Reply with quote

Did you ever get a response. I think I may have a weak compressor as well but not sure how to check it.

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Clouddog



Joined: 02 Jun 2016
Posts: 99
Location: Lebanon, TN

PostPosted: Fri Jul 10, 2020 4:16 am    Post subject: Re: Weak air compressor? Reply with quote

First of all, try posting maintenance issues on the YAK list. I'm an RPA member and long time CJ owner and didnt even know this RPA list existed until now. I think everyone uses the YAK fourm for maintenance issues.

Regardless, make sure your filter is clean, and pull the banjo fitting from the compressor and clean the valve on the inside of the fitting. This gets gunked up and will not allow the air to flow. When you put the banjo fitting back on, you may need to have some new crush washers available from Doug Sapp . Look for leakes in the line from the compressor to the snot valve. Also clean the snot valve and insure the knob remains closed should have a spring on it to keep it closed. If the snot valve does not close then your air is leaking.another possibility is your over pressure relief valve your need servicing. If its acting up then pressure will vent overboard.

Again, try using the YAK list for maintenance questions in the futyre.


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Clouddog



Joined: 02 Jun 2016
Posts: 99
Location: Lebanon, TN

PostPosted: Fri Jul 10, 2020 4:16 am    Post subject: Re: Weak air compressor? Reply with quote

First of all, try posting maintenance issues on the YAK list. I'm an RPA member and long time CJ owner and didnt even know this RPA list existed until now. I think everyone uses the YAK fourm for maintenance issues.

Regardless, make sure your filter is clean, and pull the banjo fitting from the compressor and clean the valve on the inside of the fitting. This gets gunked up and will not allow the air to flow. When you put the banjo fitting back on, you may need to have some new crush washers available from Doug Sapp . Look for leakes in the line from the compressor to the snot valve. Also clean the snot valve and insure the knob remains closed should have a spring on it to keep it closed. If the snot valve does not close then your air is leaking.another possibility is your over pressure relief valve your need servicing. If its acting up then pressure will vent overboard.

Again, try using the YAK list for maintenance questions in the future.


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