gstuart

D3 Grandad

Full Member

• Dec 20, 2014

• #1

hi

don't know about u but never seen an exhaust air bag before

seen the normal ones the fire brigade etc use via an external compressor

http://youtu.be/gmzMx9_TkaU

any of u guys used these , imagine it would be easier to use than a high lift jack seeing ur going to be on very soft ground etc

 

flat

Well-Known Member

• Dec 20, 2014

• #2

Yeah I have a mate with one, his is ex-fire service and he has found it useful but I am not entirely convinced. Looks good but imagine if that bag let go....

 

Brown

Well-Known Member

Full Member

• Dec 20, 2014

• #3

You used to be able to get small domestic ones from places like Argos back in the early 1980s. We had one for a bit. It burst eventually under my mother's Morris Oxford. Not very dramatic. It made a noise like a balloon going down when you stretch the neck, and the car descended gently to the ground. They're good for monocoque cars with 'soft' undersides because it spreads the load out and you don't indent them as you might with a jack or stands.

 

Locky1978

Active Member

• Dec 20, 2014

• #4

I've got one. I use it every so often just to lift one wheel. You need a well sealed exhaust system. The only problem with them is they aren't very stable. Worse than a high lift jack. If you're on angled ground and start to lift the bag will roll. You can see where it's rolled sideways in that video too. They can lift a surprising weight considering it's exhaust pressure only. It would easily lift the front of my perkins engined series.
Not very pleasant when you let them down either. The valves on the bag and you kinda have to get under the car to undo it. Resulting in a face full of sooty exhaust.

 

Last edited: Dec 20, 2014

derwendolly

Well-Known Member

Full Member

• Dec 20, 2014

• #5

I've got one I have never used - not even taken out of the box! I bought it 'just in case' for a twin axle caravan I had a number of years ago.

You, or anyone, is welcome to it, if you are prepared to pay the postage. It is heavyish if I remember correctly.

 

Brown

Well-Known Member

Full Member

• Dec 20, 2014

• #6

You don't have much control going up or going down and the bag might decide to take the path of least resistance and go in an unexpected direction. As with any jack, you'd want to put some solid support under the car before going underneath to work.