Breather pipe size?

[burgerman]

Howdy all, finally getting round to fitting me snorkel, so thought i would extend the breathers at the same time,,

 Question is ---- what inside diametre is the tubing ??

 Hoping it would be the kinda size from homebase/fish shop ect?? it has breathers already, i just wish to extend them

almost forgot it a 1991 v8 disco with a manuel (yea i know its spelt wrong) gearbox

 Many thanks

[Colin 009]

Homebase/fish tank pipe is ok, a lot of people have used it.

[imspanners]

If I remember correctly it's 7mm.
I bought B&Q garden irrigation hose. Using their pipe joints to connect to the original breathers.

[blacknight]

I ran new breather pipes on my Disco (Tdi 1996)to the side of the air filter box.

I snipped off a small piece of the breather pipe, measured the internal size by using a twist drill and then went to my local pneaumatic supplier and bought 30m of the stuff for about £7.00.

I also cleaned out the fitting on the axle at the same time.

I had to warm the pipe up slightly to get it on to the fitting on the axle.

The size of pipe I bought had an inside diameter of 4mm.