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PT & WB (Twin Axle Pusher Unique Issues) If you have a unique issue with your PT or WB model coach and it can't be answered in one of the other forums here, then this is where you can list it....list your PT Parts here too.

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  #51  
Old 08-27-2019
Butch Charpentier Butch Charpentier is offline
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Great pictures, that's my valve exactly. If what Randy says is true than there wouldn't be any movement in that is visible. So everything would be internal. By breaking the solenoid down as I have done, replacing the internal and external o-ring and complete cleaning I may have fixed my problem?
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  #52  
Old 08-27-2019
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Quote:
Originally Posted by Butch Charpentier View Post
Great pictures, that's my valve exactly. If what Randy says is true than there wouldn't be any movement in that is visible. So everything would be internal. By breaking the solenoid down as I have done, replacing the internal and external o-ring and complete cleaning I may have fixed my problem?
I don't think you have it all apart yet.
From the pics you sent me,the spool is still inside and the tiny hole in that spool must be clear.
Look at Johns pics,do you see that tiny hole in the end of the flat thing?
I think that hole os what controls the whole thing,it lets fluid go into a chamber and that fluid pushes the spool into the cartridge.
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  #53  
Old 08-27-2019
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Originally Posted by GregOC View Post
An option would be with this guy and his all in one temp controlled wax valve.
http://sourcerv.com/conversion
You guys should lookinto this and readup about the people who use it on the country coach rigs



This could be used on the early WBs (96-88) by changing the fan motor to the lxi style.
Then some new hoses and the kit Greg found and your in business.
You would also need the switch that the LX has to turn the fan on when the AC is on.
You would still have the old style pump on the engine,but everything else will be newer.


Of course the fan speed controller like Butch has is pretty simple,now that we have figured it out (maybe)
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  #54  
Old 08-28-2019
Butch Charpentier Butch Charpentier is offline
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Randy I disassembled it again and came in the back way with air. the little passage way you are referring to is clear. As far as disassembling the rest of it I couldn't figure it out short of a plasma cutter. But I'm pretty sure the spool and passage way are clear. If the is a trick to getting the front apart please let me know.
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  #55  
Old 08-28-2019
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Quote:
Originally Posted by Butch Charpentier View Post
Randy I disassembled it again and came in the back way with air. the little passage way you are referring to is clear. As far as disassembling the rest of it I couldn't figure it out short of a plasma cutter. But I'm pretty sure the spool and passage way are clear. If the is a trick to getting the front apart please let me know.
I have never had one apart.
I have had lots of other stuff apart,and i may be totally wrong,but i think the thing with the tiny hole slides out,its a piston or spool.
it will move in thebore and close off or open up the holes around the main body.
If you can't close those holes off it will not work.
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  #56  
Old 08-28-2019
Butch Charpentier Butch Charpentier is offline
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You know if something was broke in there you would think you would hear it when you manually pushed the piston with the small hole in it in. It is also spring loaded so it comes out automatically. With the back apart and the pin and spring out if you apply air to it air comes out those side holes as well as the pin hole in the front. I don't know what happens when it is in the valve body and there is the pressure from the pump on it. So I am at the point now where I'm ready to reinstall unless somebody can tell me how to take the solenoid completely apart?
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  #57  
Old 08-28-2019
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Quote:
Originally Posted by Randy Dupree View Post
I have never had one apart.
I have had lots of other stuff apart,and i may be totally wrong,but i think the thing with the tiny hole slides out,its a piston or spool.
it will move in thebore and close off or open up the holes around the main body.
If you can't close those holes off it will not work.
Quote:
Originally Posted by Butch Charpentier View Post
You know if something was broke in there you would think you would hear it when you manually pushed the piston with the small hole in it in. It is also spring loaded so it comes out automatically. With the back apart and the pin and spring out if you apply air to it air comes out those side holes as well as the pin hole in the front. I don't know what happens when it is in the valve body and there is the pressure from the pump on it. So I am at the point now where I'm ready to reinstall unless somebody can tell me how to take the solenoid completely apart?
Since you've proved that the piston can be pushed in, it's probably worth putting the cartridge back and trying it.

I haven't had a cartridge like ours apart either but it looks to me like there's an O-ring holding the lower piston assembly of the cartridge into the upper assembly of the cartridge. (Note: the attached drawing shows a totally different valve body that does not represent how ours is ported (so ignore the body) but it does show the cartridge O-ring that I'm referring to). I'm not sure you could remove the lower part of the cartridge and get it back on (in the field) due to that O-ring.

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1991 40' WB ...From 2008 - Present
1984 ½ PT-36 .From 2000 - 2008
1973 FC-31 .....From 1991 - 2001
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  #58  
Old 08-28-2019
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Quote:
Originally Posted by Butch Charpentier View Post
You know if something was broke in there you would think you would hear it when you manually pushed the piston with the small hole in it in. It is also spring loaded so it comes out automatically. With the back apart and the pin and spring out if you apply air to it air comes out those side holes as well as the pin hole in the front. I don't know what happens when it is in the valve body and there is the pressure from the pump on it. So I am at the point now where I'm ready to reinstall unless somebody can tell me how to take the solenoid completely apart?
You never mentioned the spool would move,its good to get all of the info,saves time and fingers.
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  #59  
Old 08-29-2019
Butch Charpentier Butch Charpentier is offline
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Hey Randy unless you forgot I'm old. I'm lucky to remember where I live (of course the yelling helps) most of the time. Also it only dawned on me what the spool was that you've been referring to recently. It looks like if that interior o-ring is bad the valve is toast. Unless someone knows how to break it down so the o-ring can be replaced.
Another question I have is what grade/weight hydraulic oil is used in that system?
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  #60  
Old 08-29-2019
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Quote:
Originally Posted by Butch Charpentier View Post
Hey Randy unless you forgot I'm old. I'm lucky to remember where I live (of course the yelling helps) most of the time. Also it only dawned on me what the spool was that you've been referring to recently. It looks like if that interior o-ring is bad the valve is toast. Unless someone knows how to break it down so the o-ring can be replaced.
Another question I have is what grade/weight hydraulic oil is used in that system?
I wasn't implying that the O-ring is bad, I was just pointing out that according to the drawing, the groove for that O-ring has "square" shoulders. If so, it may require enough force to shear the O-ring in order to pull the cartridge apart.

10W-30 Motor Oil is what the owner's manual recommends.
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1991 40' WB ...From 2008 - Present
1984 ½ PT-36 .From 2000 - 2008
1973 FC-31 .....From 1991 - 2001
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