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[sophos9]

How do you go about diagnosing an air leak? I've read somewhere that you can spray carb cleaner around the areas that are leaking whilst listening to the engine revs...?

[Entwood]

My comments at post #3 perhaps ??  

[sophos9]

  That will be the one!!

[v6coop]

One way to test whether or not you have an air leak is to put a vaccum gauge onto one of the pipes. Something like this http://www.cromwell.co.uk/KEN5031140K should do the trick. It won't tell you where it is but at least you will know if you have a problem and if you have cured it.

[sophos9]

I got a full on vacuum test kit which I use to bleed braking systems....

[cem_devecioglu]

Tech 2 also shows the amount of air entering but I dont think its correct in small leaks..