I'm doing an R134 conversion as part of my engine swap.. the car is an early 85 so no barrier hoses. How can one tell if a hose is a barrier type? I need the ones under the dash, and I see them on Ebay but I don't want to plunk down money and end up with the same I already have. Any markings, etc that could narrow it down?
Announcement
Collapse
No announcement yet.
How to distinguish barrier AC hoses?
Collapse
X
-
I don’t believe that they were ever sold as barrier hoses. If you want to convert them, you’ll need to go get barrier hose crimped on.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
-
I don't believe there is a uniform standard of hose marking, but I can say that if you see any with Eaton labelled hose you should be in business.
If you want to be really sure, just make your own SUR&R and Eaton EZ Clip systems/kits are out there that will work for the application, but maybe not the budget.
Comment
-
Way back when, I bought a hose crimping kit. It’s been very valuable to me.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
Not sure exactly which hoses you are needing, but I've been able to get several 134a hoses new from BMW. On the parts diagram at RealOEM, it will list whether the hose is compatible with 134a. Just be sitting down when you find a current price.1992 325i Cabrio
1988 320i Touring
2000 M5
1977 530i
2015 328i - Euro Delivery/Performance Center Delivery
BMWCCA
E30CCA
Comment
-
Originally posted by cory58 View PostNot sure exactly which hoses you are needing, but I've been able to get several 134a hoses new from BMW. On the parts diagram at RealOEM, it will list whether the hose is compatible with 134a. Just be sitting down when you find a current price.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
-
Originally posted by nrubenstein View PostWAY cheaper to get new hose crimped on to the old ends.
So true if you have a good crimping tool or reliable source for hoses.1992 325i Cabrio
1988 320i Touring
2000 M5
1977 530i
2015 328i - Euro Delivery/Performance Center Delivery
BMWCCA
E30CCA
Comment
-
I spoke with Aeroquip who made the OE hoses I was replacing and they confirmed they were not barrier hoses. They also gave me the spec for refrigerant leakage in grams/inch/hour or something to that effect. The difference between r12 and f134 on the OE hoses was about 10x, keeping in mind that the mineral oil impregnated in to the OE hose will help in the short term.
I also needed the 2 hoses behind the glove box and one was NLA the other was silly expensive. Luckily I found a NIB pair on eBay from a seller In Israel, and sent those out to have the hoses converted. As I recall, barrier hose is actually thinner than non and typically there are markings just as there are on fuel lines so you can tell what you've got.
Look for shops that do hydraulics as some are equipped for and are willing to do hose upgrades.
Hoses to the condenser are still available and are upgraded. I just bought the condenser to drier hose on amazon for $37. Made by Four Season who makes most of the replacement AC parts sold, including compressors. FWIW I also got a behr drier on amazon for $18.Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com
https://www.r3vlimited.com/board/sho...86#post4944786
Alice the Time Capsule
http://www.r3vlimited.com/board/showthread.php?t=360504
87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220
Comment
-
Originally posted by r-mm View PostIts technically for ac only not hydraulic lines but the mastercool manual crimp tool is $150 well spent on a very nicely made easy to use tool. Coldhose.com has all the bits and pieces you need to make pretty much any line.
https://www.amazon.com/MASTERCOOL-71.../dp/B000WBQ4U2
That said, if you’re only doing one car, it’s probably still cheaper to get a shop to do it. And a proper hydraulic crimper will get a nicer crimp on.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
Comment
Comment