[sdo]

Bring back an old topic,

Dose any one have an exploded view of the 4-way protection valve, mine is leaking (I can hear it but have not gotten under the truck to check it out closer) I have a full truck manual but it dose not have an exploded view of the valve. Judging by the photos above, I will pull the front cover off of it and see if there is crud inside it, but a diagram would help too.

thanks

 

[sdo]

I sprayed the whole area with soapy water and did not find any bubbles, I am going to pull the tire off the truck tomorrow to give me better access to the area. Refill the air system and get my head in there and see if I can narrow it down.

If its the 4-way I will pull it apart and see if I can repair it.

Is there a gasket between the top plate and the body, that I should be wary of?

thanks

 

[sdo]

Fixed it, the valve was leaking from the back of it. I pulled off the front of the valve and cleaned and re greased the inside. But there was no way to get the rear chamber from the front cover, so I had to remove the 8 lines form it and pull the valve off the frame. Once off I found there is a 2" plug on the back of the valve, held on with a snap ring. I removed the ring and found it was very rusty on the inside and after wire wheeling it, there where pin holes in it. So I got a piece of 1/4" AL, cut out a circle of it, cut a grove for the O ring that is behind it and put it all back together. Leak is now gone.

 

[sdo]

Valve was easy to service, take it off, open it up and clean it all out. I used Vaseline to rebuild it.