Finally fixed all breathers on engine, do I need a one way valve to servo?

[danblowes]

Just fixed all my breathers on my LCR, found 3 splits under inlet, do I need to put a one-way valve in the line to the brake servo? I haven't at the moment and the brakes feel fine with the servo line coming straight off the inlet.
This may be a stupid question just need a definitive answer.

Cheers

Dan

 

[danblowes]

Anyone????

 

[richybigman]

Did you replace the 3 split hoses with direct replacements of did you bypass the lot?
If you just replaced the split hoses then there is already a one way valve fitted.

 

[xDaNx]

Also if you've bypassed it all and gone down the catch can route and you've got a LCR, there should be a one way valve near the bulkhead, you'll see it if you follow the brake servo pipe all way up, so just run the pipe straight to the inlet.

 

[richybigman]

From what I understand if you do bypass it all and fit a catch can then you do need to have a one way valve on the servo hose that runs to the left side of the inlet manifold.

As per:

 

[xDaNx]

Yes but you don't need to fit one because there's already one there further up the line

 

[danblowes]

I bypassed the lot, and run the lines to my catch tank, the brakes were fine when I drove it and yes it is on a LCR, so therotically there should be a one way valve close to the servo?? I'll have a look later when I get home

 

[richybigman]

Yes but you don't need to fit one because there's already one there further up the line

I know what you're saying but why would Seat fit two if it didn't need it?

 

[danblowes]

I'm going to look when I get home but I have modified the standard one-way valve so I'll put it in-line anyways just to be sure, but thanks guys for your advise

 

[BoostHard]

if your talking about the one on the brake booster line then yes it needs to there,

 

[danblowes]

Yes but you don't need to fit one because there's already one there further up the line

When I looked last night there is one other connection further up that line and although it does look like a one-way valve it is actually just a right angled connector, I have fitted a one-way valve in-line now and all is ok

 

[xDaNx]

http://www.audi-sport.net/vb/a3-s3-forum-8l-chassis/165322-catch-can-1-way-check-valve-query.html

 

[ibizacupra]

Just fixed all my breathers on my LCR, found 3 splits under inlet, do I need to put a one-way valve in the line to the brake servo? I haven't at the moment and the brakes feel fine with the servo line coming straight off the inlet.
This may be a stupid question just need a definitive answer.

Cheers

Dan

servo should have non return one way in its line yes