I've got a friend that blew the rear line on his LR4 on a recent trip. This is the second time it's happened for him. I'm a big fan of air suspension but not a big fan of blown lines. We are putting together a plan to bullet proof the airlines. The valves/struts/compressor can still fail, but next time it won't be the air lines. Before someone says "Just swap to coils" let me stop you there. Not interested for this application.
Basic premise is to replace the 6 mm nylon airline with 3/16" ID high pressure (1500 psi) braided stainless line.
Fittings for Air strut (1/8" BSPP) to -4 JIC (same as AN fitting) - https://www.mcmaster.com/5097K41/ You need these for both ends of each line you are going to replace.
-4 JIC hose end - https://www.mcmaster.com/52515K41/ also need one for each end of each line you are going to replace.
High pressure teflon/stainless hose - https://www.mcmaster.com/52515K1/ I don't know how much is required but I'll measure as we do the lines.
I'll follow up with photos as we make and install the lines. We are installing some front struts in the next couple weeks and will start with the front lines at the same time.
LR3/4 bullet proof airlines
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swamijake
- Out of Africa
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bsa_m21
- Spanner Man
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Re: LR3/4 bullet proof airlines
Interesting fix. Post lots of pics when done, pls.
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swamijake
- Out of Africa
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Re: LR3/4 bullet proof airlines
I've got all the parts now. Taking it on next week. Will be taking all the pictures.
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Colb45
- Newbie
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Re: LR3/4 bullet proof airlines
Were the air lines failing due to rubbing or being pinched? This is something i have wondering since its the next weakest and oldest part of my suspension.
Another alternative once you know the lengths of air line required to take this one step further would be having the ends crimped (like a hydraulic hose) versus a mechanical fastener. Random thought :mrgreen:
Another alternative once you know the lengths of air line required to take this one step further would be having the ends crimped (like a hydraulic hose) versus a mechanical fastener. Random thought :mrgreen:
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swamijake
- Out of Africa
- Posts: 417
- Joined: Tue Jan 08, 2008 1:31 pm
- Location: Lower Mainland
Re: LR3/4 bullet proof airlines
Haven't done it yet to be honest. We had a trip with another LR4 and he blew a rear airline, and had blown one on a previous trip as well. We haven't had any problems yet. I had bought new struts for the front as the LR4 is starting to sag a bit if left for a couple days, and was planning to do the struts and lines at the same time.
Will post pics of all of it when I do it eventually.
Will post pics of all of it when I do it eventually.