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Model specific boards => Golf mk4 => Topic started by: Big Tone on 14 July 2010, 14:27

Title: search for the boost leak. FIXED!
Post by: Big Tone on 14 July 2010, 14:27
Started stripping the car, bumper off, intercooler off, pipework etc. to find my boost leak, now it is P*SSING down, typical.

Anyway, was hoping to find something, but cant really say I have, now going further to check the operation of the check valves in the system.

I do have however, a reduced diameter dv valve air connection, maybe 1.5mm, could this cause the dv to be restricted in its operation and therefore pass air back into the intake side of the TIP?


What about turning the dv round so the air connection is horizontal? what effect would this have?
Title: Re: search for the boost leak. FIXED!
Post by: Big Tone on 14 July 2010, 17:28
NO More 17705.......Result! :laugh:
Title: Re: search for the boost leak. FIXED!
Post by: darren1.8t on 14 July 2010, 18:02
so what was it m8 ?
Title: Re: search for the boost leak. FIXED!
Post by: Big Tone on 14 July 2010, 18:46
Wish I knew,

Couldn't find any signs of leaks, all check valves ok, the only thing that I changed was the DV air connection, I ran 4mm vac tubing all the way getting rid of the 90deg fitting off the top of the DV. The bore of this was about 1.5mm so I guess that was restricting the DV operation.

Renewed loads of hose clips so I suppose it could have been a build up of small leaks.

Wonder what is next????? :laugh:
Title: Re: search for the boost leak. FIXED!
Post by: northeast_gti-t on 14 July 2010, 19:02
Quote from: Big Tone on 14 July 2010, 17:28
NO More 17705.......Result! :laugh:
famous last words!  :grin:
anyway good work mate :afro:
Title: Re: search for the boost leak. FIXED!
Post by: richw911 on 14 July 2010, 19:11
Quote from: northeast_gti-t on 14 July 2010, 19:02
Quote from: Big Tone on 14 July 2010, 17:28
NO More 17705.......Result! :laugh:
famous last words!  :grin:


 :grin: :grin: :grin: :grin: :lipsrsealed:
Title: Re: search for the boost leak. FIXED!
Post by: T_J_G on 14 July 2010, 19:24
It'll be back.
Title: Re: search for the boost leak. FIXED!
Post by: richw911 on 14 July 2010, 19:26
Quote from: T_J_G on 14 July 2010, 19:24
It'll be back.

 :grin:
Title: Re: search for the boost leak. FIXED!
Post by: northeast_gti-t on 14 July 2010, 19:27
Quote from: T_J_G on 14 July 2010, 19:24
It'll be back.
i speak from previous experience  :grin: :lipsrsealed:
Title: Re: search for the boost leak. FIXED!
Post by: Big Tone on 14 July 2010, 19:33
The sad thing is, I know it will, its just when.

Fun, Fun, Fun. :shocked:

Keeps me busy though I suppose.
Title: Re: search for the boost leak. FIXED!
Post by: MickeyC on 14 July 2010, 20:37
i have this fault  :laugh:

garage thought it could me my DV leaking but then he found a nice big split in one of my pipes and he reckons thats the cause so im booked in for monday to get a new pipe fitted, fingers crossed thats the problem and not my DV