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Boost leak detector - PICS!
2 Attachment(s)
This is sooooo cheap and simple I cannot believe I've not done it until now...
3" PVC cap tapped for a schrader valve: Attachment 203026 You could get all fancy and tap a pressure gauge in there too - but its totally not necessary. The CCV, VC's, etc are gonna leak some and bleed the pressure down, so we just blow up the intake tubing until it looks uncomfortably inflated and start sprayin' soapy water and listening... :-innocent Remove airbox (or in my case 6637) and clamp PVC in place, then blow compressed air in and spray all boots, etc with soapy water: Attachment 203027 I'm willing to bet more people have leaks than think they do... Most of that 'dirty engine' syndrome can be mitigated by eliminating leaks found with this EASY test. :-X04 Thanks to Jim (rat49F6) for loaning me this tool and all the other help he's been to me since I've been in NJ!!! :-drink |
Great tip!
Reps given! |
Dumb question, but where'd you get the Schrader valve?
Mark |
Originally Posted by SkySkiJason
(Post 10091987)
This is sooooo cheap and simple I cannot believe I've not done it until now...
3" PVC cap tapped for a schrader valve: http://i107.photobucket.com/albums/m...f/IMAG1375.jpg You could get all fancy and tap a pressure gauge in there too - but its totally not necessary. The CCV, VC's, etc are gonna leak some and bleed the pressure down, so we just blow up the intake tubing until it looks uncomfortably inflated and start sprayin' soapy water and listening... :-innocent Remove airbox (or in my case 6637) and clamp PVC in place, then blow compressed air in and spray all boots, etc with soapy water: http://i107.photobucket.com/albums/m...f/IMAG1377.jpg I'm willing to bet more people have leaks than think they do... Most of that 'dirty engine' syndrome can be mitigated by eliminating leaks found with this EASY test. :-X04 Thanks to Jim (rat49F6) for loaning me this tool and all the other help he's been to me since I've been in NJ!!! :-drink Keep your psi low or you will have 'leaks' everywhere :-hair |
Good advice Les. Not sure how many psi I was putting in there, but guessing not more than 20-25... We just puffed up the intake tube a little and looked for leaks until it got soft again - then added more air (2-3 secs).
I'm surprised we haven't gotten any comments about the lovely hand model we used for this shoot! :-wow |
Originally Posted by SkySkiJason
(Post 10093074)
Good advice Les. Not sure how many psi I was putting in there, but guessing not more than 20-25... We just puffed up the intake tube a little and looked for leaks until it got soft again - then added more air (2-3 secs).
I'm surprised we haven't gotten any comments about the lovely hand model we used for this shoot! :-wow I need to make me one of those... I have the stuff laying around. |
here is mine i made about 5 years ago...
http://inlinethumb20.webshots.com/46...600x600Q85.jpg here is a nice one for 30 bucks Intake Pressure Tester |
Went ahead and made one of these today (thanks for the easy directions) and I'm afraid to ask about the results - why would air be coming out of the dipstick? I only pressured it up to about 20 psi and couldn't find any other "leaks."
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cool...another tool to make.
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Turns out I made the mistake of hooking it up to the CCV coupler just like this. I'll try again later with the detector hooked up to the correct boot.
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Originally Posted by ScaldedDog
(Post 10093005)
Dumb question, but where'd you get the Schrader valve?
Mark
Originally Posted by SkySkiJason
(Post 10093074)
Good advice Les. Not sure how many psi I was putting in there, but guessing not more than 20-25... We just puffed up the intake tube a little and looked for leaks until it got soft again - then added more air (2-3 secs).
I'm surprised we haven't gotten any comments about the lovely hand model we used for this shoot! :-wow lets make a high class new tester like rons |
Thanks for the cool idea Jason, I think I'll fab one up while my chip is out for updates......It's too booring and slow to drive anyhow.:9
I tried to rep you brother, but.....:confused: |
I got him for ya....
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Originally Posted by 76'SuperCab
(Post 10093571)
Went ahead and made one of these today (thanks for the easy directions) and I'm afraid to ask about the results - why would air be coming out of the dipstick? I only pressured it up to about 20 psi and couldn't find any other "leaks."
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Originally Posted by jwhitetail
(Post 10103866)
I would say if you put enough pressure on it with the valves open it will bypass the piston ring's, the reason for CCV. Seems like if you wanted to check for leaks take the intercooler tube off at the cold side at the spider and plug with cap also.
The intake tube goes directly into CCV - unlike gassers, there is no PCV - so air blown in the way I describe is pressurizing crankcase via valve cover. This would be a good reason to keep pressure low. You could plug CCV in intake tube and put as much pressure as ya wanted (until ya broke CAC) - but again, I think its totally unnecessary! K.I.S.S. :-drink and not needed, but thanks anyway Joe!!!! |
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