Cruise control vacuum hose - needs replacing!

Hello! Long time no see... been a bit busy with stuff! ...and no, I don't plan to start one hell of a conversation again!

Anyway... my Disco 1 (1997) has cruise control which no longer works. The rubber hose is worn out, cracked and useless.

Someone suggested reinforced fuel pipe as a replacement because it will then last forever. Can anyone recommend exactly what I'm after here?

I have no idea what fuel pipe to buy, whether it's flexible enough to push onto the t-pieces, etc, etc... so who has replaced their cruise control hose before??

Thanks in advance!

You require vacuum pipe loads of the stuff on e-bay and in a few colours 4.5mm inside dia is the size and 2.5m in length.

I haven't replace mine yet just trimed the ends in the engine bay.

i've also trimmed the ends of mine, several times, and it's at the point now where it's too short if I trim it again, so I've had to duct-tape it this time!

I'm happy to buy more standard vacuum pipe, but someone (on here, I think) did suggest reinforced fuel pipe as a better alternative... or is that a load of rubbish and vacuum pipe is better?

Cruise control is a vacuum system so using small diameter vacuum hose is ideal, non vacuum hose such as windscreen washer hose which may collapse, you could use the larger fuel hose that has nylon reinforcing if you wish, it's all up to you.
There no more to it....

Thanks for the advice... would you believe though, i'm struggling to find anything on eBay! So many types of hoses and pipes, etc, etc... out there that it's almost impossible to find the right things amongst everything! lol

I will keep searching...

Right... finally found something (I think)!

Would you say this is the perfect part? (if I order the right length, of course)... 1x Black cotton Overbraid Vacuum Hose 4.5mm (VH010B) | eBay

Or this as a cheaper option, I have to do mine so I'll give this a go, but I have no doubt its more than the hoses on my disco

BLACK SILICONE VACUUM HOSE TUBING 3.2mm ID SILICON TUBE | eBay

I gotta do this on mine the pipes have disintegrated

Well, I have ordered 4 metres of this in the end:
1x Black cotton Overbraid Vacuum Hose 4.5mm (VH010B) | eBay

I need about 2m from vacuum pump to t-piece, 75cm or so to go through the bulkhead and 50cm or so to go from the t-piece to the diaphragm.

Let's see how it goes! I duct-taped it all today, but it still didn't work... I hope it's not the pump that's gone...

SpaceDawg said:

Or this as a cheaper option, I have to do mine so I'll give this a go, but I have no doubt its more than the hoses on my disco

BLACK SILICONE VACUUM HOSE TUBING 3.2mm ID SILICON TUBE | eBay

Click to expand...

This hose ID is too small - you need 4.2 mm I(nternal) D(iameter) hose

discool said 4.5mm... i don't suppose 4.2mm makes much difference though... right?

3.2mm probably is too small though, admittedly! I measured mine and it was somewhere between 4 and 5mm.

I always under estimate the size of my pipe!

I've just fixed the cruise on mine a couple of weeks ago using some 1/4" LLDPE water pipe (the type supplied with fridges that have a plumbed in water filter).

Search for Fridge Water Pipe on ebay, it's around 99p per metre.

The 1/4" pipe fits perfectly inside the existing vacuum hose so I cut a few 2" lengths from good sections of the vaccum hose to act as joints between the LLDPE pipe and the t-piece/pump.

I thought the internal bore may have been too small but my cruise works perfectly now with no loss of vacuum. The only issue I have is that the pipe is bright blue so it doesn't exactly blend in!!

Richard

Right... in the end I bought 4 metres of this: 1x Black cotton Overbraid Vacuum Hose 4.5mm (VH010B) | eBay

I then cut it into 3 lengths (with lots spare so I can cut the ends off for years to come):

- Vacuum pump <---> t-piece.
- T-piece <---> actuator/diaphragm.
- T-piece <---> adapter under driver's dashboard (through the bulkhead).

I then bought some 2.5mm cable ties and cable tied each end to keep it in place.

Oh, and I had to stick some of the ends of the hose into boiling water for a few seconds so they could actually go onto the solid pipe/adapter parts, but they're all on now and guess what........... it works perfectly!

Thanks for the help, people!

excellent thread, just ordered same stuff for mine.