Polyair failures

Submitted: Friday, Apr 22, 2005 at 13:08
ThreadID: 22286 Views:2151 Replies:18 FollowUps:3
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I had some Polyairs installed less than 6 months ago. Today I am taking the vehicle back to the installer for the second time as the hose has come off the same side twice. Has anyone had similar problems? Is their something I may recommend to the installer to minimize such recurrences?
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Reply By: lizard - Friday, Apr 22, 2005 at 13:52

Friday, Apr 22, 2005 at 13:52
Have had my Polyairs on for two years - went to Cape York , Gurig , Kimberley (twice - towing off rd caravan second time) with no problems ... fitted in Mandurah
AnswerID: 107812

Follow Up By: Member - Melissa - Friday, Apr 22, 2005 at 23:32

Friday, Apr 22, 2005 at 23:32
Lizard, are you in Mandurah? So are we.

:o) Melissa
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Reply By: age - Friday, Apr 22, 2005 at 14:04

Friday, Apr 22, 2005 at 14:04
Had mine on for 6 years now and done some evil towing with them - never had a problem. Must be some fault at that connection. Don't be dis-heartened by this experience. They are fantastic and converted vehicle from being dangerous when towing to being superb.
AnswerID: 107814

Reply By: KiwiAngler - Friday, Apr 22, 2005 at 14:13

Friday, Apr 22, 2005 at 14:13
Had mine for a year now and have also done many k's since installation and no problems

Question:
Have you kept a minimum of 8 psi in them at all times? Even when 'not in use' you have to keep them pressurised.
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AnswerID: 107817

Reply By: Moggs - Friday, Apr 22, 2005 at 14:42

Friday, Apr 22, 2005 at 14:42
Hi Ross,

I also run Polyairs without any problems.

I don't think the problem will be with pressures, it will almost certainly be that there isn't enough slack in the airline to compensate for articulation, or alternatively check and see if the line runs past anything that can foul it, whether flung up from underneath or part of the undercarriage.

A good way to ensure that your airlines are not stretched or fouled is to piggy-back them to the brake lines - use plenty of slack and then put the airline in corrugate. I then zip tie them to the tips of the brake lines.

I would also recommend using new push on fittings now as they might be loose after coming on and off a few times.

Good luck with it and persevere with the Polyairs - they are a good bit of kit.
AnswerID: 107825

Reply By: Member - Andrew(WA) - Friday, Apr 22, 2005 at 14:49

Friday, Apr 22, 2005 at 14:49
I did a 20,000k trip around OZ towing 1.5 ton van. Never had a problem, still going strong after almost 3 years.
AnswerID: 107827

Reply By: Wizard1 - Friday, Apr 22, 2005 at 14:55

Friday, Apr 22, 2005 at 14:55
The hoses are a little on the dainty side. I am a little paranoid of a rock severing one. Have considered replacing them with heavy rubber or perhaps a braided hose.

What sort of vehicle are they fitted to and where are the valves mounted?

Perhaps there is too much strain on the hose. I like pocking around after a job like that has been done to my Prado to ensure every thing looks Koshur. When mine were fitted I had to get under the car with extra cable ties to ensure the hoses weren't hanging down too much and exposed to possble rock damage.

Fitters usually just do the bare minimum to get you out the door.

Had to take mine back to ARB in Osbourne Park a couple of times for jobs they had to rush due to overbooking. Once I time a took it back (squeeking snorkel) the other they came out to my place at Swanbourne (second battery tripping fuses) to fix the problem.

Had an Anderson Plug fitted once and watched the guy like a hawk, to find he was trying to earth it to the tow bar!

Have a look if it looks suspect get them to fix it before it fails in the middle of no where.

Wizard
Prado TD
Gold Coast

AnswerID: 107828

Reply By: Member - Nobby - Friday, Apr 22, 2005 at 16:03

Friday, Apr 22, 2005 at 16:03
Have got Polyairs on the Jack and first outing one side went down. Had a small hole in the wall. Contacted polyair and just about before I put the phone down a new set arrived by Express delivery. Since then no problems and as you can guess, couldn't be happier with the service.
AnswerID: 107834

Reply By: Member - Jeff M (WA) - Friday, Apr 22, 2005 at 16:04

Friday, Apr 22, 2005 at 16:04
Why take it back? Seems like a lot of messing around. Just get under there and plug it back in!
If it's anything like the Firestone Air Helpers I have (which I presume it is) the hose just "clicks" into place. While your under there have a look around for any reason it keeps comming off (as suggested above) see if there is enough slack etc. If all else fails it may be that the connection itself is not 100%. Try whacking some silicone around the connection once it's re-connected (it's my answer for everything). That will allow some give on rough corrugations but stop it from popping out completley.
AnswerID: 107835

Reply By: Topend - Friday, Apr 22, 2005 at 17:57

Friday, Apr 22, 2005 at 17:57
Check that the holes above the spring that the hose fits through is large enough to allow some movement from side to side. This has caused some problems on mine in the past. The instructions will show the size of the drill required for this hole.

Topend.
AnswerID: 107853

Reply By: Eric from Cape York Connections - Friday, Apr 22, 2005 at 18:18

Friday, Apr 22, 2005 at 18:18
I have had my poly airs for about 6 or 7 years and no trouble to date.

all the best
Eric
AnswerID: 107859

Reply By: Michael ( Moss Vale NSW) - Friday, Apr 22, 2005 at 18:21

Friday, Apr 22, 2005 at 18:21
i think from memory, the polyairs have little screw on fittings to secure the tube to the bag. It is more than likely the over nut is faulty or ther incorrect tube.. you call it a "Polyair failure". Just get the Manufacturer to replace the faulty side, the problem will go. Michael
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AnswerID: 107860

Reply By: Member - Duncan W (WA) - Friday, Apr 22, 2005 at 19:46

Friday, Apr 22, 2005 at 19:46
Showing my ignorance here, but what are Polyairs?? I gather that they are used as part of a towing system.

Thanks

Dunc.
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AnswerID: 107876

Follow Up By: Member -Peter (York 4x4) - Friday, Apr 22, 2005 at 20:24

Friday, Apr 22, 2005 at 20:24
They are air bags that fit inside your coils and can be pumped up or down to give extra weight carring ability to your 4x4 also great if you have to level out the 4x4 with to much weight on one side ,this is just a simple decription go to ARB or Opp lock and have a look at them I have them in my coil cab and love them , never had a problem with them
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FollowupID: 364747

Follow Up By: Eric from Cape York Connections - Saturday, Apr 23, 2005 at 06:52

Saturday, Apr 23, 2005 at 06:52
Or on top of leaf springs.

All the best
Eric
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FollowupID: 364768

Reply By: Member - Duncan W (WA) - Friday, Apr 22, 2005 at 21:43

Friday, Apr 22, 2005 at 21:43
Thanks Peter I know what your all on about now. Bet I wasn't the only one who didn't know either?

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AnswerID: 107893

Reply By: Member - Phil G (SA) - Friday, Apr 22, 2005 at 22:10

Friday, Apr 22, 2005 at 22:10
They may have cut the tube too short. There needs to be enough slack in the tube for the polyair bag to sit at the bottom of the coil spring during full articulation. And the tube is best left hanging free at the top, and not cabletied to something close by.

Cheers
Phil
AnswerID: 107897

Reply By: Mouldy - Friday, Apr 22, 2005 at 23:25

Friday, Apr 22, 2005 at 23:25
Hi Ross,

Inherited polyairs with my car. Only problem I had was couldnt inflate/deflate one side. Turned out it had a kink in the line which was fixed by opp lock bunbury free of charge. Sounds like the line needs to be a bit longer and fixed so that it doesnt pull out. As for concerns about the line being danaged by rocks, run it through another tube for protection, alternatively lagg it up. Mine works well, especially towing and with the long range fuel tank, just firm things up around the rear end. (Always liked a firm rear end!).

Good luck.
AnswerID: 107906

Reply By: govo - Saturday, Apr 23, 2005 at 09:09

Saturday, Apr 23, 2005 at 09:09
Had the same problem as you for awhile, so i removed the small spring clips and used two small zippy ties on each of them....never had a problem with them since
AnswerID: 107928

Reply By: Member - Andrew R (VIC) - Saturday, Apr 23, 2005 at 14:35

Saturday, Apr 23, 2005 at 14:35
This might be a stupid question, but you're not over inflating them are you?
AnswerID: 107945

Reply By: Coops (Kalgoorlie) - Saturday, Apr 23, 2005 at 20:32

Saturday, Apr 23, 2005 at 20:32
5 years and no problems other than a punctured air line
AnswerID: 107962

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