DIY Boost leak tester guide

morrischad

Active Member
Jan 13, 2008
88
0
South Yorkshire
Got rest of parts that i need now to hopefully fix these f***ing leaks, i'm a gas fitter and haven't had this many leaks at work all year, will be 2 wks on sunday that she's been off rd, had to buy a new battery today as well, the list is GROWING aaaaaaaaaarrrrrrrrrrggggggggggghhhhhhhhhh
 

Pyro

Guest
Does this all work for lc? As I think I got more leaks than a super Market :(
 

morrischad

Active Member
Jan 13, 2008
88
0
South Yorkshire
Well im pi**ed off wi these leaks now, sorted dipstick tube and fitted new Y shaped pump thing under inlet mani and its still leaking, can hear it but cant feel or see it bubbling, sounds like its near the tip area but low down but im testing where intercooler hose joins onto charge pipe, is their a way of testing the N75 valve?...
 
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waynepixel

Newbie
Aug 14, 2006
135
0
Kent- Medway
Well im pi**ed off wi these leaks now, sorted dipstick tube and fitted new Y shaped pump thing under inlet mani and its still leaking, can hear it but cant feel or see it bubbling, sounds like its near the tip area but low down but im testing where intercooler hose joins onto charge pipe, is their a way of testing the N75 valve?...i was thinking either pull it out of the TIP,connect some hose to it and blank it off or just do the TIP test


Mate, I would just get a smoke Boost test done, it only cost me £25 and it will find every single leak to have in Five minutes. If you can change the N75 valve do it, they fail and give readings just like a boost leak but no Faults will show in VAG COM, when mine failed it had an indent in the lower pipe which go's into the TIP and can be an indication of a F%$Ked N75 valve.
 

JamJay

California Bound
Back from the dead!

I'm going to have a go at doing this myself as I need to rule out a leak as one of my problems. By doing this from the charge pipe to IC hose, which hoses does it miss out that you will manually need to check? Also, do you need to block off the charge pipe or leave that open? Thirdly, can you use a tyre foot pump to do this?
 

rsmith

Robbie
Apr 28, 2004
2,797
1
Tipperary, Ireland
Tip and vacuum hoses from the tip

And the turbo to charge pipe hose but this is easily checked by eye.
Thanks Sam.

I think I will buy these, saves on the trouble of finding an end cap and the jar is essentially beaded.

http://cgi.ebay.co.uk/10-x-230ml-PE...en_Kitchen_FoodStorage_GL&hash=item3a63eb896c

that jar will more than likely collapse under the pressure, all plumbing hardware stores stock the correct pipe for only a few quid, it a pretty universal size/type of pipe.
 

JamJay

California Bound
Thanks Robbie,

Any input on using a tyre foot pump for this? I don't have access to a compressor.

I just found an Vitamin C supplement pot in my desk draw at work, it's white PVCu, robust and guess what...it's 61mm OD with a bead around the top where the lid goes. JOB DONE! :D. My friend (Mechanic) is picking me up a black rubber tyre valve tonight and my step-Dad is sorting me out a pressure guage so I'll be leak testing this weekend :).
 
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s_purs

Guest
Is there anybody around the Reading area (or Hertfordshire/Barnet this weekend, or Guildford area next weekend) who has made this, knows how to fix the problems and fancies testing my car for me please? As if I had a go at this I would end up screwing it up, and even if I did manage to test it I wouldnt have a clue how to fix whatever the problem was!

I would happily drive to theirs and sort out some beer money/whatnot. Would really put my mind at rest on my leak.

Would be very grateful,

Ben
 

rsmith

Robbie
Apr 28, 2004
2,797
1
Tipperary, Ireland
Thanks Robbie,

Any input on using a tyre foot pump for this? I don't have access to a compressor.

I just found an Vitamin C supplement pot in my desk draw at work, it's white PVCu, robust and guess what...it's 61mm OD with a bead around the top where the lid goes. JOB DONE! :D. My friend (Mechanic) is picking me up a black rubber tyre valve tonight and my step-Dad is sorting me out a pressure guage so I'll be leak testing this weekend :).

The foot pump will work but will take longer and if there is a leak it will be harder to build pressure, i used a bicycle pump one day when i was stuck.Remember to also test the boost leak tester when pressure builds, just spray some soapy water on it.

Also most leaks i found where tracked down by the sound of escaping air(try and do the test in a quiet area) and the smaller ones were found by spraying soapy water on the pipe or joint etc..
 

JamJay

California Bound
Is there anybody around the Reading area (or Hertfordshire/Barnet this weekend, or Guildford area next weekend) who has made this, knows how to fix the problems and fancies testing my car for me please? As if I had a go at this I would end up screwing it up, and even if I did manage to test it I wouldnt have a clue how to fix whatever the problem was!

I would happily drive to theirs and sort out some beer money/whatnot. Would really put my mind at rest on my leak.

Would be very grateful,

Ben

I'm in the Reigate area, if my tester works then your welcome to come down my way and use it. I won;t be able to fix your issue though, this will only highlight where it is and then it's up to you to buy the necessary hose, gasket etc.

The foot pump will work but will take longer and if there is a leak it will be harder to build pressure, i used a bicycle pump one day when i was stuck.Remember to also test the boost leak tester when pressure builds, just spray some soapy water on it.

Also most leaks i found where tracked down by the sound of escaping air(try and do the test in a quiet area) and the smaller ones were found by spraying soapy water on the pipe or joint etc..

Cheers dude :)
 
Lecatona HPFP (High-pressure Fuel Pump Upgrades)