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Re: [GMCnet] Required air pressure for quad bag rear suspension [message #329344 is a reply to message #329276]

Tue, 20 February 2018 19:31

Bullitthead

Messages: 1411
Registered: November 2013

Karma:

Senior Member

The GMC right side used to fall down at 15 degrees F. This was when I winterized it and allowed it to get cold inside as well. It was 23 degrees inside when it was 15 outside. Before I put a block under the right rear, I learned valuable lesson about door not opening enough for me to get in and correct the situation Laughing

Could not find leak after pumping system back up while running engine and compressor. Surmised it was the supply line to the right bag, and the control valve also leaking system air to the bag when there was enough pressure differential. Bags and system held up all the rest of the year. Found problems next temp drop(using leak check that doesn't freeze)...PLASTICS...did not warm up engine or interior, used external compressor for air in system. In addition to the internal valve leak, the plastic hose compression type connection for the right bag leaked when it got that cold. Fixed the hose with warmth followed with a little bit of disassembly and rework. Still haven't found the rebuild kit for the valves, but was informed of JR's replacements. I'm too cheap right now for new valves, and have further system mods being added on which may get incorporated into that system. There are some compression unions under the coach that didn't leak back then, but after they got blasted with exhaust leakage last summer (muffler explosion) they leaked to the point that the system only stayed up for about 15 minutes. Was able to stop leakage by tightening, but reworked 2 of the connections to be sure. Those connections are not supposed to be there, I can tell by the way the hoses ended up being routed. Muff explosion due to ignition cutoff from electrical spike must have happened to the P.O. also Confused

The temperature changes really affect the plastics...all of them...

Terry Kelpien ASE Master Technician 73 Glacier 260 Smithfield, Va.

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[Message index]

		Required air pressure for quad bag rear suspension By: gibsongo on Tue, 06 February 2018 09:10
		Re: Required air pressure for quad bag rear suspension By: Bullitthead on Tue, 06 February 2018 09:27
		Re: Required air pressure for quad bag rear suspension By: gibsongo on Tue, 06 February 2018 09:48
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: jimk on Tue, 06 February 2018 09:45
		Re: Required air pressure for quad bag rear suspension By: Larry on Tue, 06 February 2018 09:58
		Re: Required air pressure for quad bag rear suspension By: gibsongo on Tue, 06 February 2018 10:01
		Re: Required air pressure for quad bag rear suspension By: gibsongo on Tue, 06 February 2018 10:09
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: James Hupy on Tue, 06 February 2018 10:23
		Re: Required air pressure for quad bag rear suspension By: Larry on Tue, 06 February 2018 11:01
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: USAussie on Tue, 06 February 2018 15:42
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: James Hupy on Tue, 06 February 2018 15:52
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Carl S. on Tue, 06 February 2018 16:09
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: USAussie on Tue, 06 February 2018 16:49
		Re: Required air pressure for quad bag rear suspension By: RF_Burns on Tue, 06 February 2018 17:37
		Re: Required air pressure for quad bag rear suspension By: gibsongo on Tue, 06 February 2018 22:52
		Re: Required air pressure for quad bag rear suspension By: RF_Burns on Wed, 07 February 2018 05:58
		Re: Required air pressure for quad bag rear suspension By: Larry on Wed, 07 February 2018 08:10
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: k2gkk on Wed, 07 February 2018 09:50
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Larry on Wed, 07 February 2018 10:16
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: johnd01 on Wed, 07 February 2018 12:16
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Ken Burton on Wed, 07 February 2018 13:08
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: emerystora on Wed, 07 February 2018 14:06
		Re: Required air pressure for quad bag rear suspension By: JohnL455 on Wed, 07 February 2018 08:02
		Re: Required air pressure for quad bag rear suspension By: 77Royale on Wed, 07 February 2018 08:31
		Re: Required air pressure for quad bag rear suspension By: TR 1 on Wed, 07 February 2018 08:48
		Re: Required air pressure for quad bag rear suspension By: gibsongo on Thu, 15 February 2018 19:28
		Re: Required air pressure for quad bag rear suspension By: Ken Burton on Thu, 15 February 2018 23:02
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: jimk on Fri, 16 February 2018 12:03
		Re: Required air pressure for quad bag rear suspension By: gibsongo on Fri, 16 February 2018 20:48
		Re: Required air pressure for quad bag rear suspension By: Ken Burton on Sat, 17 February 2018 05:02
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Tangerine on Sat, 17 February 2018 10:38
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: jimk on Sat, 17 February 2018 11:00
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: k2gkk on Sat, 17 February 2018 14:54
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Tangerine on Sun, 18 February 2018 09:35
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: jimk on Sun, 18 February 2018 12:42
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: James Hupy on Sun, 18 February 2018 12:56
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Tangerine on Mon, 19 February 2018 05:37
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Bullitthead on Tue, 20 February 2018 19:31
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Bullitthead on Tue, 20 February 2018 19:36
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: jimk on Tue, 20 February 2018 20:24
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Bullitthead on Tue, 20 February 2018 20:52
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: jimk on Wed, 21 February 2018 00:14
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: bdub on Wed, 21 February 2018 06:12
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: Tangerine on Thu, 22 February 2018 07:36
		Re: [GMCnet] Required air pressure for quad bag rear suspension By: USAussie on Tue, 20 February 2018 19:39
		Re: Required air pressure for quad bag rear suspension By: NextGenGMC on Sat, 17 February 2018 12:51

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