Water in air dryer constant

[LPAS4500]

M923A2--Water is constantly building in the bottom of the air dryer and causes the 150 psi valve (between tank and air dryer)to blow, instead of the dryer blowing at 120 psi. If I pull on the nut at the bottom of the air dryer with vice grips, a teaspoon of water will come out every 10 minutes. Primary and secondary gauges consistently pass 120 psi and go to 150 psi. I have changed the air dryer filter and all air tanks are dry. Sure it's humid in Louisiana, but my buddy has no problem of this sort with his identical truck. AND...The dryer heater seems to be working(warm, but not too hot to touch).Also, I always open the petcock valves each time after truck use.

Any thoughts??? Where is this water coming from? How do I stop it??

 

[wheelspinner]

It's coming from the spitter valve not purging when the governor kicks off at 120. The 150 is a safety valve. Do you have wipers and horn? If not the PPV is stuck. Otherwise you may have a bad governor. Both are easy. Lots of water is normal but it is usually expelled on every cut-off. If you are new to air systems do yourself a favor and read up on the system and how everything works together. It will make you insane if you don't follow how the whole system works.

 

[RustyM923]

If the "water" contains coolant (faint smell), you could have a problem with your compressor. It's cooled by the cooling system via two hard lines coming from the rear driver's side of the engine (8.3L)

 

[LPAS4500]

Fairly familiar with air system, but not sure where splitter valve is or what it looks like

 

[wheelspinner]

Fairly familiar with air system, but not sure where splitter valve is or what it looks like

the expelling valve on the bottom of the air dryer. It is activated when the governor cuts out at 120. If you are getting to 150 it is MOST LIKELY one of the two items I mentioned earlier.

 

[LPAS4500]

That's the nut I pull on with vice grips and water comes out. Should the heater "loop" be too hot to touch?

 

[LPAS4500]

Air pressure regulator/governor is new.

 

[LPAS4500]

Put new o-rings in air dryer from underneath...lubed inner sleeve with white lithium also

 

[LPAS4500]

Almost positive it's going to 150 psi bc of the water...

 

[wheelspinner]

You never answered if the wipers and horn work.

 

[LPAS4500]

No they do not work....& The governor is new

 

[LPAS4500]

They did not work before I changed the governor. Then they did after governor replacement 2wks ago. Now they don't. Did not used to have this water issue

 

[wheelspinner]

Ok. Go back to my first post. Your PPV or pressure protection valve is stuck. Replace it.

 

[LPAS4500]

Is that what opens when I pull on the nut at the bottom side of air dryer?

 

[wheelspinner]

NO! Do your self a favor and search for that description. There are a few threads on it.

 

[LPAS4500]

I found what you are talking about. Is that something that can be taken apart, lined and put back together? I also read where a heat gun helped...

 

[Mike929]

NO! Do your self a favor and search for that description. There are a few threads on it.

http://steelsoldiers.com/showthread.php?110230-Pressure-Protective-Valve-quot-PPV-quot

 

[LPAS4500]

Gonna give it a shot!! Ty!

 

[LPAS4500]

Took PPV apart, very easy, cleaned and lubed up and air dryer blew at 120 psi. Drove it all day and never had another problem and everything is great. Thank you very much for your guidance...and patience!!