| Author | Message | ||
| David Evans (Dmd)
Registered Member Username: Dmd Post Number: 374 Registered: 10-2004 Posted From: 96.232.132.245  Rating: N/A |
Hey all. I am rebuilding the rear floor in the aft bedroom over the trans and dropbox and just noticed that from the engine to the front defroster there are no less than 11 90degree elbows and one 45 in 3/4 copper.ONE WAY!!! I am pretty sure i could eliminate about 8 (or 16) of those by running pex or rubber hose. I also would probably go up to 1" while i was at it. I am unsure of any drawbacks to this, i am sure i can route these to be free of chafe. Maybe antifreeze incompatibility with pex? Any ideas, comments or words of wiz-dumb please let me know. Mean while back to the bus. must not watch ball game Thanks dave | ||
| thomas flocks (Taflocks)
Registered Member Username: Taflocks Post Number: 33 Registered: 9-2009 Posted From: 69.205.11.117 Rating: N/A |
i use pex for my radient heat at home and have had no problems,any idea on a 4106 how it is heated while driving as the a/c package was removed? i have a knob at the top of the stairs that i have no idea what it is for. could this be heat? | ||
| David Evans (Dmd)
Registered Member Username: Dmd Post Number: 375 Registered: 10-2004 Posted From: 96.232.132.245 Rating: N/A |
Tom, i have i no idea for a new bus like yours! Our bus has 2 isolation valves in the rear that shut off the coolant going foward in the summer. Then i just have a fan switch for the heater defroster. You need to get a operators manual that will show you all the bell ande whistles or take a picture or ask some of the GM guys. Lots of 06 guys on this board. Is it by the door close handle or on the other side of the wheel? Look in the back for 2 valves from the engine going thru the bulkhead foward. | ||
| Cullen Newsom (Cullennewsom)
Registered Member Username: Cullennewsom Post Number: 157 Registered: 2-2009 Posted From: 129.7.52.191  Rating: N/A |
David you could probably finance the project by selling the Copper! Not sure if I would use larger than 1/2" due to the large volume of pipe that would then have to be filled, though it would probably be a short enough run to not matter. I made the mistake of using 3/4" pipe in a house once. It took longer to get hot water through the 3/4" inch line, but without any appreciable difference in flow volume or pressure. | ||
| David Evans (Dmd)
Registered Member Username: Dmd Post Number: 376 Registered: 10-2004 Posted From: 96.232.132.245 Rating: N/A |
I was thinking larger diameter less flow restriction. before the repower it had 3/4 running fore and aft, maybe i willl just stick with that. I am waiting to hear if auto antifreeze will be ok in the pex. | ||
| Phil Smith (Phil_smith)
Registered Member Username: Phil_smith Post Number: 46 Registered: 3-2006 Posted From: 24.116.71.31 Rating: N/A |
I used pex in my webasto/engine coolant system and it's just fine after 2 years. | ||
| David Evans (Dmd)
Registered Member Username: Dmd Post Number: 377 Registered: 10-2004 Posted From: 96.232.132.245 Rating: N/A |
Thanks Phil. |