8mm vacuum hose

bigfella2901 · Mar 9, 2011

hi all.

i've just recieved my blue 8mm vacuum hose through so will be changing them but i cannot find the thread that shows u exactly what ones to changed. before u ask i have tried the search button

could some one please point me in the right direction

minty23 · Mar 10, 2011

mines a 1.6 so only did all the coolant pipes. when cool just undo the pipes and best use new clips, you will lose a tiny amount of coolant so just have some to hand. hope thats what your looking for

LEE69 · Mar 10, 2011

8mm? Did you read to buy that size to replace vacuum hose?

bigfella2901 · Mar 10, 2011

LEE69 said:
8mm? Did you read to buy that size to replace vacuum hose?

Yeh, there was a thread on here, which i cant seem to find anymore :/ that said about replacing the 8mm vacuum hoses

i take it there not 8mm then :/

andy_lang · Mar 10, 2011

Lee will know all - hes like a lil helper monkey with all the answers

& by the way mate, you posted a PCV linky to a golf catch can set up - I cant rem where you posted it

or if it had the ID's of the various hoses id need.

Gona try and repair my PCV on saturday and fit the TIP

LEE69 · Mar 10, 2011

bigfella2901 said:
Yeh, there was a thread on here, which i cant seem to find anymore :/ that said about replacing the 8mm vacuum hoses

i take it there not 8mm then :/

4/5mm is for the vacuum lines, dump valve type of size, depends what lines you are actually replacing?

andy_lang said:
Lee will know all - hes like a lil helper monkey with all the answers

& by the way mate, you posted a PCV linky to a golf catch can set up - I cant rem where you posted it or if it had the ID's of the various hoses id need.

Gona try and repair my PCV on saturday and fit the TIP

http://uk-mkivs.net/forums/t/269734.aspx for the catch can installation
http://forums.vwvortex.com/showthread.php?4417082 removing puk

andy_lang · Mar 10, 2011

Cheers Lee.

So do I need to remove the PUK? I see its a bit rubbish and standard but...................

LEE69 · Mar 10, 2011

Yeah you can.

bigfella2901 · Mar 10, 2011

ok cool..what can i use the 8mm vacuum hose to replace? or is it not worth using at all..

bigfella2901 · Mar 10, 2011

http://www.seatcupra.net/forums/showthread.php?t=281336&highlight=4mm+hose

this is one of the threads where RONIN225 says there is loads of 8mm hoses u can replace..

im confused...

t32er · Mar 10, 2011

8mm, i think is more for the N75 pipes mate...

LEE69 · Mar 10, 2011

bigfella2901 said:
http://www.seatcupra.net/forums/showthread.php?t=281336&highlight=4mm+hose

this is one of the threads where RONIN225 says there is loads of 8mm hoses u can replace..

im confused...

It's all different sizes you need to find what 8mm will fit, don't think a definitive list as been done.

Ronin225 · Mar 10, 2011

An old pic but you can see the larger ones are 8mm

They are
1. Top of throttle body to check valve
2 Check valve to solid pipe against bulkhead
3. N75 to port on charge pipe next to DV take off ( blanked off on mine)
4. Carbon canister to hardpipes aginst bulkhead
5. Expansion tank to hardpipes against bulkhead (coolant)
6. N75 to actuator but needs to have a reducer down to 5/6mm for actuator fitment

4mm ones are:

1. Under inlet manifold to FPR
2. Under inlet manifold to N249
3. N249 to top of DV
4. Boost gauge piping (FPR is adviseable place to tee for source)

8bit · Mar 10, 2011

Good list Ronin, I've been looking for something like that for a while. Quick question tho, I see from that photo that you haven't done the pipe running from the driver's side end of the intake mani in a horseshoe shape, round the charge pipe to SMIC hose - would you happen to know what ID that pipe is?

I'm suspecting it's 8mm but wondered if the reason you hadn't done that one was cos you'd tried 8mm and it didn't fit...

andy_lang · Mar 10, 2011

Ok so silly question as im too lazy to check, does anyone know the OD of said pipes? Ill order up a box load of Mikalor clamps and thinking that a box of:

8-16mm x 10 pcs
16-27mm x 10 pcs

Should do me pretty nicely for my entire pcv system / catch can, and all parts on the TIP. + spares

bigfella2901 · Mar 10, 2011

Ronin225 said:
An old pic but you can see the larger ones are 8mm

They are
1. Top of throttle body to check valve
2 Check valve to solid pipe against bulkhead
3. N75 to port on charge pipe next to DV take off ( blanked off on mine)
4. Carbon canister to hardpipes aginst bulkhead
5. Expansion tank to hardpipes against bulkhead (coolant)
6. N75 to actuator but needs to have a reducer down to 5/6mm for actuator fitment

4mm ones are:

1. Under inlet manifold to FPR
2. Under inlet manifold to N249
3. N249 to top of DV
4. Boost gauge piping (FPR is adviseable place to tee for source)

THANK YOU!

been needing something like this

Ronin225 · Mar 10, 2011

8bit, that large u pipe is 10mm

8bit · Mar 10, 2011

Cheers mate, nice one

8bit · Apr 8, 2011

Ronin225 said:
6. N75 to actuator but needs to have a reducer down to 5/6mm for actuator fitment

Ronin, have you done this one? If so, can I ask where you got an 8mm -> 5/6mm reducer and joiner from, if that's how you did it?

Ronin225 · Apr 9, 2011

8bit said:
Ronin, have you done this one? If so, can I ask where you got an 8mm -> 5/6mm reducer and joiner from, if that's how you did it?

Didnt replace in the end but will do at some point
The wall of the pipe does seem thicker on this though

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8mm vacuum hose

bigfella2901

Active Member

minty23

low and definatly slow

LEE69

Stage 2 Revo'd

bigfella2901

Active Member

andy_lang

LEE69

Stage 2 Revo'd

andy_lang

LEE69

Stage 2 Revo'd

bigfella2901

Active Member

bigfella2901

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t32er

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LEE69

Stage 2 Revo'd

Ronin225

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8bit

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andy_lang

bigfella2901

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Ronin225

Active Member

8bit

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8bit

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Ronin225

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