New vacuum hoses

[Filterlab]

Once my S70 has been and had its cam tensioner sorted, I'm intending to change the vacuum hoses as they must be getting a bit crud now (original on 173k).

What diameter hose/s do I require and what length? If someone can recommend the best quality hoses to use and preferably black in colour, that would be a grand old job.

Fanks chaps!

[walter leever]

Once my S70 has been and had its cam tensioner sorted, I'm intending to change the vacuum hoses as they must be getting a bit crud now (original on 173k).

What diameter hose/s do I require and what length? If someone can recommend the best quality hoses to use and preferably black in colour, that would be a grand old job.

Fanks chaps!

the best would to go for sillicone hoses,there are companies that do complete sets.(all the diameters you'll need and plenty of it.)

For instance www.stylinmotors.com

cheers,walter

[Filterlab]

Cheers Walt, nice link.

I also need to know the diameters I'll require. On my Saab 9000(s) it was the same throughout the engine.

[Wombatbomb]

The best thing to use for the vacuum hoses is fuel pipe. The silicone items expand under pressure, the fuel hose, being reinforced, does not and is likely to last longer and be much more resistant to splitting as it's designed to carry heated fuel under pressure, which is a very corrosive combination. It is also considerably cheaper.

[Filterlab]

Quality tip, thanks Wombat! What diameter do I need?

[p fandango]

think you need 4mm & 5mm, & as above go for fuel pipe

[Filterlab]

Nice one, thanks chaps!

[p fandango]

Nice one, thanks chaps!

no problem, its been a while since i changed mine so can't remember which diameter was used where, but do remember Volvo being awkward & using the different pipe sizes

[thebadger]

A lot of the hoses are different sizes, TCV hoses are a bit bigger than the ones off the tree for instance, some of the more obscure ones vary in size, 4-5mm (but I used 6mm on the tcv)

[Filterlab]

I think I might have a measure up before I order the hoses, that way I won't get half way through the job and be left with a space where a hose should be.

[walter leever]

I think I might have a measure up before I order the hoses, that way I won't get half way through the job and be left with a space where a hose should be.

On the site they say:4mm,6mm and 8mm(diam.needed)and you'll get some 10mm aswell(to do the hose to the expansion tank for example)

Availeble in RRRRRRRRRRed,Blue and Black.

[Filterlab]

I was just going to do the vac hoses for now, or are you trying to give me more work!

[Filterlab]

Just bought 3 metres of 4mm overbraided fuel hose and 3 metres of 6mm overbraided fuel hose, whole lot with delivery comes to £24 which can't be bad. Will probably have loads left but it's always handy.

[Nico20V]

Hi Rob. I found these links. Still making sense out of them though..duno if they help. Says they're for 850.

http://volvospeed.com/Repair/vacuum_lines.htm

http://volvospeed.com/Repair/RubberElbows.php

[Filterlab]

Hi Rob. I found these links. Still making sense out of them though..duno if they help. Says they're for 850.

Repair Vacuum Lines

Repair Elbows

Cheers mate. The 850 and early 70s are very similar so this should come in very handy.