Airbag goes bang!

[atwood]

There are a number of really useful threads here about D2 saggy bum and causes. Profuse thanks to these publishers. I had the problem - so I decided to follow instructions. I ordered new airbags and set about installing them.
No great problems - the change from screw-in to push-in air lines was well documented and installing the bags was a comparatively simple task.
Bags installed, doors closed, start the car - zero action from the compressor, pull it out and have a poke around - then read the threads again. Jack up the suspension a bit more and it bursts into life - reinstall the compressor - all now looks good. Add wheels - remove jack stands - and start her up again..... BANG!

Replaced jack stands - removed wheels - one bag looks normal - one completely deflated. There is a large split where bag joins metal top plate. Obviously a faulty bag - remove it - only, how the hell do I get the air hose out of the push in fitting - without cutting the line (again)? All advice gratefully received.

[justinc]

There are a number of really useful threads here about D2 saggy bum and causes. Profuse thanks to these publishers. I had the problem - so I decided to follow instructions. I ordered new airbags and set about installing them.
No great problems - the change from screw-in to push-in air lines was well documented and installing the bags was a comparatively simple task.
Bags installed, doors closed, start the car - zero action from the compressor, pull it out and have a poke around - then read the threads again. Jack up the suspension a bit more and it bursts into life - reinstall the compressor - all now looks good. Add wheels - remove jack stands - and start her up again..... BANG!

Replaced jack stands - removed wheels - one bag looks normal - one completely deflated. There is a large split where bag joins metal top plate. Obviously a faulty bag - remove it - only, how the hell do I get the air hose out of the push in fitting - without cutting the line (again)? All advice gratefully received.

The outer edge of the fitting needs to be pushed in while the airline is pulled out. I would suggest that it is quite possible that the airbag inflated while still not seated on the bottom cone properly, causing it to inflate on one side, splitting at the top. I ALWAYS fit them one at a time, so I can contol the inflation by using a quick acting trolley jack.

JC

[isuzurover]

how the hell do I get the air hose out of the push in fitting - without cutting the line (again)? All advice gratefully received.

If it is a standard push-lock fitting, you push the line INTO the fitting as hard as you can, grab the ferrule and push it INTO the fitting with your other hand and hold it it, then pull the air line out.

[atwood]

It is of course possible that I have failed to seat the bag properly - but I did wriggle it about and thought I had it right... yep - I should have done them one at a time.... naturally the one that went bang is the left one - second to be looked at on inflation.....

Thanks for the info re air lines - will extract tomorrow.
Regards

[Pedro_The_Swift]

not that it matters now, but---
my last set came with BOLD TYPE instructions to ensure bag is not twisted upon inflation---

what brand bags?
just wondering as there have been
some failures(when new)


and having been here(there?:p) before, I have installed an extra set of metal push-in connectors and extra hose length added, just in case,,:angel::wasntme:

[strangy]

I am also curious of bag brand.

cheers

[atwood]

Extracted the bag this AM.

Dunlop bags.... Bag rubber pulled away from the metal section at top. The rubber isn't split - it looks as though about 2cm of the bag edge has come clean away.

Pedro - I noted and appreciated your instructions very much.

Problems started when I had 2 new deflated bags on the car - and no life in the compressor. Doors closed, suspension up on one side and engine running - still no life in the compressor. At this point I started believing that the compressor was dead. I could have saved myself a couple of hours and plenty of aggravation if I had jacked it up a bit higher.
When the compressor did finally burst into life it would have helped if I was monitoring one bag only.

Rgds

[twodoors]

I ALWAYS fit them one at a time, so I can contol the inflation by using a quick acting trolley jack.

JC[/QUOTE]

Jeez how many times you had to fix em!!! I'dve gone springs by now..:D
James

[justinc]

I ALWAYS fit them one at a time, so I can contol the inflation by using a quick acting trolley jack.

JC

Jeez how many times you had to fix em!!! I'dve gone springs by now..:D
James[/QUOTE]

...I do this for a living:angel:

JC

[Baffle]

Hate to sound like a complete noob, but if you crossed your lines when you reinstalled you comp, one of the bags won't stop inflating .
I don't know which wins, bag blows or compressor pressure limit.
Like I said, a noob question. I have to admit, I've done it but caught it i'n time rushing not thinking.
Sometimes stuff happens :wasntme:

[strangy]

Hate to sound like a complete noob, but if you crossed your lines when you reinstalled you comp, one of the bags won't stop inflating .
I don't know which wins, bag blows or compressor pressure limit.
Like I said, a noob question. I have to admit, I've done it but caught it i'n time rushing not thinking.
Sometimes stuff happens :wasntme:

Hi. You can only cross the lines if you remove them at the compressor / solenoid end. I think he has left te Compressor alone.
Even if you did manage this, it shouldnt make bags go bang, but you will find briefly the vehicle going up and down because of conflicting signals from the sensors until the SLABS ECU recognises the disparity, logs a a fault and shuts down the SLS. It will do this before the compressor has the chance to get cranky and time out.

cheers

[Baffle]

Jack up the suspension a bit more and it bursts into life - reinstall the compressor - all now looks good. Add wheels - remove jack stands - and start her up again..... BANG!

.[/QUOTE]

If you have the 30mm spacers attached to the sensors for the 2" lift and cross inflate a bag? . When I stuffed up it was not looking good. But I did shut things off, so I never found out if it was possible.don't know if the slabs would signal off, it's receiving wrong info and trying to correct, into the wrong bag.
Maybe

[twodoors]

Jeez how many times you had to fix em!!! I'dve gone springs by now..:D
James

...I do this for a living:angel:

JC[/QUOTE]


You're excused then!!!! Just out of interest how many times are you seeing repeat victims... before they go coil..

James

[Pedro_The_Swift]

Received my latest set of Trelleborg Pheuoride(?) airbags from Paddocks the other day,, took longer to set up than to replace the bag:p. about 20 mins from walking out the back door to walking back in again,,

go to coil?!?
:Rolling::Rolling:[FishSlap]

[Basil135]

Received my latest set of Trelleborg Pheuoride(?) airbags from Paddocks the other day,, took longer to set up than to replace the bag:p. about 20 mins from walking out the back door to walking back in again,,

go to coil?!?
:Rolling::Rolling:[FishSlap]


20 mins for 1 bag??:o

Did you have to stop and down a couple of cold ones between the back door & the car? ;)

[Pedro_The_Swift]

Had the usual fight with the stupid lock nut:mad:( i will not buy anything off the local private LR workshop)

I shouldve flogged a couple of wheel nuts off the green one before it went,,,:eek:

[Rosscoe68]

you take the wheels off to do the airbags ??

maybe i am just plain lazy, but i just jacked her up and changed em with wheels still on

[DI5CO]

I had trouble with a batch of bags about 2 years ago & became a pro & changing them over too with out taking the wheels off as well!! :eek:

[justinc]

I never remove the wheels.

JC

[Rosscoe68]

phew, don't feel quite so lazy now :)