Lumber Pads

[VPower]

Hi all

My drivers lumber pad keeps loosing its air. About 30 seconds.

Anybody got a fix for this?

Would some of that mountain bike tyre sealant do the job??

Don't think its the pump end, but the internal balloon.


Steve

[Tanguero]

You have to completely strip the seat to get to the lumbar support. When you do it is a flat rubber bag made of very heavy rubber.



I would be rather surprised if it is the bag its self that has a leak, I think it is far more likeley to be where the tube enters the bag. You can re-crimp the tube if you are carefull - a good smear of cycle repair cement helps. If it is the bag then bycicle repair may work though it will probably blow out eventualy.

[Gazzab]

Inflatable pants is a cheaper and easier repair. If you can regulate the valve then you will have a comfortable ride.

[VPower]

Cheers lads, thanks for the info.


That crimped fitting looks a likely culprit.
Could I get to it with the seat in place?

No quite ready for Tenna lady pants just yet!!
Although on occasion it has been close!

[Tanguero]

VPower said:

That crimped fitting looks a likely culprit.
Could I get to it with the seat in place?

Not a hope I am afraid. The whole of the seat back has to come off and there is not enought height to do that with it in situ.

I wouldn't be too quick to assume it is that joint though - there is not much strain on it - try inflating the support fully with the bulb and then immersing the bulb and tube in a jug/bucket of water. You may well find that the leak is where the tube, valve and bulb meet. Mine was.

[julian64]

The lumber support is a doctors blood pressure cuff.

Interesting to get your hands on those replacement parts.

[Tanguero]

julian64 said:

The lumber support is a doctors blood pressure cuff.

Interesting to get your hands on those replacement parts.

I think mine were a good deal more rigid than a blood pressure cuff - the rubber is fabric reinforced and each sheet is over 1mm thick making the whole bladder about 3-4mm thick and quite solid.

Thats said, its a good idea for a replacement - particularly of a leaky bulb. Readily available from fleabay for a very modest tenner.

Edited by Tanguero on Tuesday 18th August 14:23

[VPower]

Good idea Peter.

I'll give it a dunk in water tomorrow!

[julian64]

VPower said:

Good idea Peter.

I'll give it a dunk in water tomorrow!

Worth it cos the stethoscope by itself will allow you to zero in on funny engine noises so won't be wasted

[VPower]

julian64 said:

VPower said:

Good idea Peter.

I'll give it a dunk in water tomorrow!

Worth it cos the stethoscope by itself will allow you to zero in on funny engine noises so won't be wasted

Surely a recipe for nightmares?
Was that clicking my cams about to break??