Need Guidance, M923 loses air zero leaks found

[simp5782]

I WAS ACTUALLY WONDERING IF THERE IS A UPGRADE FOR THE ENGINE MOUNTED COMPRESSOR, I MOUNTED AN ON-BOARD AUX COMPRESSOR FOR 110 POWER.

well I installed a shut off at primary tank, crimped off hoses until the gauge stopped dropping from the remaining pressure in the lines, looks like final repair will be the foot valve, ordered overnight from Memphis equipment, will see.

appears truck had a ton of air system issues after all, likely stemmed from lack of air tank/water draining (rust in system). high condensation from overrunning the compressors due to leaks.

If you have the NHC 250 there is a dual cylinder compressor available for the engine. Stock compressors put out 13.2. Twins put out 17.2

 

[WillWagner]

Ordeal to install. If you don't use it for what it is made for, you have a big oil pump installed on your engine. Stick with the 13 CFM comp.

 

[911BRIS]

okay looks like I am satisfied with the air holding capacity now after foot valve replacement. I had replaced a wiper air switch due to leak but it does not function now. I believe I have the wrong switch. unfortunately it looks like Memphis equipment cannot help determine the correct switch not sure if anyone can help?

 

[WillWagner]

Any Mfgr names or numbers cast into the old switch?

 

[simp5782]

okay looks like I am satisfied with the air holding capacity now after foot valve replacement. I had replaced a wiper air switch due to leak but it does not function now. I believe I have the wrong switch. unfortunately it looks like Memphis equipment cannot help determine the correct switch not sure if anyone can help? View attachment 741411

It is just an updated switch. Same 3 ports on the rear of the switch. Just plumb it in accordingly. Switch manufacturer and design come and go all the time in the military contract world. It serves the same purpose.

 

[911BRIS]

any mfgr names or numbers cast into the old switch?

seems like im missing numbers but the trico stamp on it is f163c 13

 

[WillWagner]

I'm pretty sure the one you got from Memphis will work, it is just an updated deal, but, if you want one that LOOKS like your old one, try a Midland RM1720221.

https://www.haldex.com/en/na/air-wiper-motors/air-control-valves/trico-compatible/rm1720221/

Try a NAPA store, and bring your old switch,


​NAPA Auto Parts[h=1]Kevin's Auto Parts Inc[/h]
1200 Plymouth Ave,Fall River, MA 02721
Phone: (50 679-8100

 

[911BRIS]

Found the right one! Made by trico

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