Vacumm Hubs Just For a Change

The hoses go back along the radius arm to the chassis mount so there's a chance you might have caught them.
Yes I put the T pieces close to the solenoids and then run each pair of hoses from there.

Thanks. I bet that is what happened. I know the 4WD was working before I fitted the guards and I can't say I have actually used it since, or at least noticed it wasn't working.

I remember seeing some hose, I thought I had been careful to avoid it when fitting the guards, but I might have caught a line and not realised. I will check tomorrow when I fit the manual hubs.

If that is all it is fitting new hose should be quite quick and easy, especially as you say, route it round the engine bay and down the brake hose.

Robin

AVM manual hubs fitted this morning, all straight forward and easy to fit/operate.  I blocked up the pipe so the pressure sensor works correctly.

 

 

Now we just need some snow or a bit of a muddy track.

Robin

I had a good look at the vac hose, it only goes a short way along the radius arm, then in a flexible pipe to the body work behind the engine, so I definitely didn’t catch it when fitting the radius arm guards.

I found that 4mm vac hose is available in different colours, so when I do it I will use say red for lock and blue for unlock.

I am not sure how much I will need, about 3-4m of each colour? Still it’s 9nly about £2.50 per metre, a lot cheaper than the complicated original pipe work with all of its joints.

Robin

I use clear PVC hose. It's around £10 for 10m and that's enough to do the whole lot.

I would add a caveat to this discussion. The system operates on a vacuum, so make certain any hose you use won't collapse when used.

Roger

Thanks guys.

It’s automotive vacuum pipe I have been looking at, so guess it is suitable.

I like the colour coding idea.
If (when) the tubing fails on mine I was considering making a new set out of copper Brake pipe, simply as I have meters of the stuff and can flange the end to suit any flexible pipe connections. I was going to use the originals as a template, solder fixings in the same place etc, so it looks original without the cost.
Daft idea or good idea, open to all comments, just mulling the options?
Reading all I can on the subject it certainly looks like a pipe problem on yours.
Good luck with the fix when you do it.

Great idea Mike, if you have the tubing, the skill and the time, why not make your own? After all it ticks all of the boxes, it will work, it’s recycling/up cycling, it will be satisfying to do and best of all it won’t cost anything, it will look great if you polish it before fitting, there is no downside.

In fact can you make me one please?

Have a nice Xmas everyone,

Robin.

Ok sou​​​nds promising.
Happy to make you a set if I can get it to work. I was going to make a template board from the originals so I can bend to shape off the vehicle, sort of how they do wiring looms.
It's something I'll have a go at If mine fail as time is not an issue for me. I need to remove my pipes intact, but at the moment they work so don't want to touch a runner. 
Not sure about polished finish, may cost extra 

Yes have a great break everyone 

Thank's for reminding us the vacuum hubs use a vacuum Roger.

After fighting with them when removing the front diff a couple of times I was quite happy to get rid of the pipes along the axle. The standard routing doesn't seem to be very well thought out. I certainly wouldn't put much effort into replicating it.

wrote:

Thank's for reminding us the vacuum hubs use a vacuum Roger.

After fighting with them when removing the front diff a couple of times I was quite happy to get rid of the pipes along the axle. The standard routing doesn't seem to be very well thought out. I certainly wouldn't put much effort into replicating it.

It wasn't the hubs I was worried about Busta. My comment was made in the spirit of being helpful, and didn't warrant your comment. I have known that thin walled hose can collapse when subjected to a vacuum. If I have offended anyone with my caveat, I apologise.

Roger