Screen Removal Bargman L-300 Door Handle brakes Satellite Fuel Tank Fire Extinguishers Roof Antenna Tech Talk Forum Shortcut Motor Oil Window Generators headlights batteries Radiator AC Unit Grab Handle Wiper Blades Wiper Blades Door Locks Door Locks Door Locks Door Locks Rims Front Shocks Rear Shocks Front Tires Oil Filter Steps Roof Vent Awning Propane Tank Mirror Info Clearance Lights Clearance Lights Clearance Lights Clearance Lights Clearance Lights Spartan Chassis Gillig Chassis Freightliner Chassis P-32 Chassis MCC Chassis
    Forums    Tech Talk    Dash Air
Go to...
Start A New Topic
Search
Notify
Tools
Reply To This Topic
  
Dash Air
 Login now/Join our community
 
Supporting Member of Barthmobile.com 4/08
posted
Dash air was originally r12 which I used until no longer available. then converted to R134. New problem as it kept losing R134. Was told this was due to molacule size and the hose in the Barth leaked it out thru the rubber. Finally last year tried propane. Works better and no longer loosing fluid.


'92 Barth Breakaway - 30'
5.9 Cummins (6B) 300+ HP
2000 Allison
Front entrance
 
Posts: 1185 | Location: Minneapolis/Yuma | Member Since: 08-17-2006Reply With QuoteReport This Post
Official Barth Junkie
Supporting Member of Barthmobile.com 1/24
Picture of Steve VW
posted Hide Post
R12 and R134 are indeed similar but not identical. Newer R134 systems are designed for higher pressures than the old R12 systems. The car companies had to use better hoses on the R134 systems to prevent the leakdown.

Had the companies used better hoses in the first place, leakdown with either type would not have been a problem. Same goes for exhaust systems. When they were steel they lasted a few years. When they finally switched to stainless for a few bucks more, they were lifetime systems. I had a 1994 Ford Ranger for 21 years, nothing but rubber hangers were ever replaced. Same for my beater 04 Chevy pickup. Original cats, pipes, and mufflers.

Remember Ziebart, etc for rust proofing? Now the companies put an effort into corrosion protection and the cars go 10 years instead of 3 or 4.

Pet peeve, but I have been long disappointed by US car companies. Their engineers have known for years how to build things right but the bean counters force them to build inferior products.

As for propane, it is cheap and it works very well in auto AC systems. My old Chevy cools like crazy with propane. Nobody uses it for OEM because, oh my God, it is flammable...

Gimme a break. My truck has about one pound of propane in it and 36 gallons of gasoline! Our RVs already have gallons of propane in their tanks, fuel as well. AC systems usually leak down slowly so accumulation of propane would be almost impossible. Even in a crash and dumping the whole system it is a pretty small amount.

Propane is environmentally pretty harmless, a minor component in natural gas. Seems compatible with most AC lubricants too. Like Gary, my experience with propane has been good.


9708-M0037-37MM-01
"98" Monarch 37
Spartan MM, 6 spd Allison
Cummins 8.3 325+ hp
 
Posts: 5168 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 4/08
posted Hide Post
quote:
Topic I may be wrong, but I think some countries require propane in new cars.




Forums Tech Talk Dash Air

Email Us | Home | Terms of Service
This


'92 Barth Breakaway - 30'
5.9 Cummins (6B) 300+ HP
2000 Allison
Front entrance
 
Posts: 1185 | Location: Minneapolis/Yuma | Member Since: 08-17-2006Reply With QuoteReport This Post
  Powered by Social Strata  
 

    Forums    Tech Talk    Dash Air

This website is dedicated to the Barth Custom Coach, their owners and those who admire this American made, quality crafted, motor coach.
We are committed to the history, preservation and restoration of the Barth Custom Coach.