09-07-2017, 01:39 PM
ok, i am back at it again,
the pictures show the modified test valve setup i used this week.
i wanted to make sure it was the front left dropping.
the modified valve setup added another ball valve on the side of the airbag/tank so that i could release and add air manually using a air hose with it isolated from the six pack. reason to follow
the data is in the two pictures.
i measured air pressure in the isolated bag and did a baseline ride height measurement at all 4 corners.
over 24 hours the front left dropped 2 1/2 inches and the other corners acted accordingly. that corresponded to 13psi from 83 to 70psi. then to make sure non of the other corners dropped i manually filled the front left bag using my shop air through the fill port if added to the valve setup. i filled the bag till it got to the same ride height as at the beginning of the test. after that i measured the other 3 corners and they were within my accuracy of being at the same ride height as at the beginning.
so for sure, the leak is between the sixpack and the bag.
i have 2 new front airbags i will have installed next week. i will hook an airline directly to the bag we take out and hopefully that will be the leak. if not, it is the airline from the bag to the tank, the tank or the line from the sixpack to the tank.
time will tell
tom
the pictures show the modified test valve setup i used this week.
i wanted to make sure it was the front left dropping.
the modified valve setup added another ball valve on the side of the airbag/tank so that i could release and add air manually using a air hose with it isolated from the six pack. reason to follow
the data is in the two pictures.
i measured air pressure in the isolated bag and did a baseline ride height measurement at all 4 corners.
over 24 hours the front left dropped 2 1/2 inches and the other corners acted accordingly. that corresponded to 13psi from 83 to 70psi. then to make sure non of the other corners dropped i manually filled the front left bag using my shop air through the fill port if added to the valve setup. i filled the bag till it got to the same ride height as at the beginning of the test. after that i measured the other 3 corners and they were within my accuracy of being at the same ride height as at the beginning.
so for sure, the leak is between the sixpack and the bag.
i have 2 new front airbags i will have installed next week. i will hook an airline directly to the bag we take out and hopefully that will be the leak. if not, it is the airline from the bag to the tank, the tank or the line from the sixpack to the tank.
time will tell
tom
2002 45'8" Newell Coach 608 Series 60 DDEC4/Allison World 6 Speed HD4000MH