05-26-2014, 06:39 AM
As Mike at Newell told me, I'm spending way too much time under the coach. The time was well spent since I now have a diagram of how most of it is hooked up. I'm attaching a PDF of the system exclusive of the braking parts. I'm sorry that I couldn't figure out how to get it to display in landscape mode so you will have to print it to read it, probably.
I added an isolation valve just between the rear pressure gauge and the rear 6 pack. This helps with troubleshooting leakage. I also plan to add a valve and gauge at the rear distribution block so that I can isolate that part of the system and determine leakage rate.
My hopes are that this information will speed up the search for air leaks. I'm now down to about 8 psi/hour from about 45psi/hour. The latest leak I found was the pressure switch for the dash warning light.
I added an isolation valve just between the rear pressure gauge and the rear 6 pack. This helps with troubleshooting leakage. I also plan to add a valve and gauge at the rear distribution block so that I can isolate that part of the system and determine leakage rate.
My hopes are that this information will speed up the search for air leaks. I'm now down to about 8 psi/hour from about 45psi/hour. The latest leak I found was the pressure switch for the dash warning light.
Jon Kabbe
1993 coach 337 with Civic towed
