iNfEk Posted May 6, 2016 Share Posted May 6, 2016 Found a leaky intercooler [emoji25] Link to comment Share on other sites More sharing options...
I3eXa Posted May 6, 2016 Share Posted May 6, 2016 Have an issue that I've had from the first day I bought the car. After letting off throttle I hear a slight 'whistle'. Thought it might be my oem bpv just being old and squeaking but it sounds like it's more from the passenger side. Not sure how else I can diagnose it since it only happens under boost (afterwards) but it doesn't happen all the time. Any suggestions? Sent from somewhere in Potatoland Link to comment Share on other sites More sharing options...
gimpydingo Posted May 6, 2016 Share Posted May 6, 2016 Found a leaky intercooler [emoji25] Bullet proof, epoxy it up or time for a new one. Link to comment Share on other sites More sharing options...
iNfEk Posted May 6, 2016 Share Posted May 6, 2016 Bullet proof, epoxy it up or time for a new one. I was thinking the same thing but the RTV has to be high temp or something. I'm thinking about doing the BP mod as well before I invest on an upgraded intercooler. Link to comment Share on other sites More sharing options...
iNfEk Posted May 6, 2016 Share Posted May 6, 2016 I just used a paint can at the turbo inlet and tightened down the hose clamp. removed the feeding line from the bov/bpv and blew into it. heard the leak immediately and ended up using soapy water to validate its location on the intercooler. I posted. here's a quick video of the leak found: https://vimeo.com/165609538 Link to comment Share on other sites More sharing options...
iNfEk Posted May 7, 2016 Share Posted May 7, 2016 Found another leak location we can add that wasn't added. The MAF o-ring. If it's torn or smashed that'll add air into the system Link to comment Share on other sites More sharing options...
iNfEk Posted May 10, 2016 Share Posted May 10, 2016 just to clarify... the smoke test is to identify vacuum leaks in the entire system? if i probe through the turbo inlet it'll go up to the throttle body. but if I cannot open the throttle body due to it being DBW how will it test the intake manifold? is there another area we can use to do that? I'd imagine that if we can crack open or stick open the throttle body without starting it like a DBC car it would help a bunch more right? I need to still create this smoker so i'm building supplies right now. I believe home depot, lowe's and hardware hawaii are the most common places we have on island. we had a few Ace hardwares but i believe they closed and we have City Mill too. I'll see what I can find. empty paint can seems accessible but I'll need to check. Link to comment Share on other sites More sharing options...
gimpydingo Posted May 10, 2016 Share Posted May 10, 2016 Over thinking it. You can pressure test through the inlet and also the smaller line coming off the BPV. Some people recommend capping the vac lines off the inlet, but you are wanting to see if any of those are leaking as well, so I wouldn't bother. I've found my leaky intake manifold gaskets using this method. Link to comment Share on other sites More sharing options...
Flinkly Posted May 10, 2016 Share Posted May 10, 2016 the throttle body is never completly closed, on any car i've ever had/worked on. there's always a little passage past the butterfly. should smoke test fine with reasonable pressure. * Build Thread * 26.53 MPG - 12 month Average * Link to comment Share on other sites More sharing options...
iNfEk Posted May 10, 2016 Share Posted May 10, 2016 Over thinking it. You can pressure test through the inlet and also the smaller line coming off the BPV. Some people recommend capping the vac lines off the inlet, but you are wanting to see if any of those are leaking as well, so I wouldn't bother. I've found my leaky intake manifold gaskets using this method. well, i'm trying to not open the system to test different things assisting the smoke getting through is what i'm after. the throttle body is never completly closed, on any car i've ever had/worked on. there's always a little passage past the butterfly. should smoke test fine with reasonable pressure. it should be shut if the car is off. if you turn the key on, my understanding is for idle purposes it will open slightly. i was told earlier that you should be able to insert the key into the ignition then turn it to the on position and then mash down the gas pedal. that should open the throttle. Link to comment Share on other sites More sharing options...
gimpydingo Posted May 10, 2016 Share Posted May 10, 2016 Don't worry about the throttle. Just go about the testing as people have suggested. No reason to make it more complicated. Link to comment Share on other sites More sharing options...
iNfEk Posted May 10, 2016 Share Posted May 10, 2016 Got it. My tester is pretty much done. Lol. Did some arts and crafts at work today. LOL. I updated the design a little hoping for longevity sake. Link to comment Share on other sites More sharing options...
gimpydingo Posted May 10, 2016 Share Posted May 10, 2016 Looks good! Dumb question on my end, what are those connectors going to connect to? I had some come in the kit I got, but nothing to attach too. I assume quick release? Link to comment Share on other sites More sharing options...
Flinkly Posted May 10, 2016 Share Posted May 10, 2016 Looks good! Dumb question on my end, what are those connectors going to connect to? I had some come in the kit I got, but nothing to attach too. I assume quick release? yeah, looks like air compressor quick release male parts, i assume to quickly add in-line in your air compressor setup. would assume that one needs to be female though... * Build Thread * 26.53 MPG - 12 month Average * Link to comment Share on other sites More sharing options...
iNfEk Posted May 10, 2016 Share Posted May 10, 2016 yeah, looks like air compressor quick release male parts, i assume to quickly add in-line in your air compressor setup. would assume that one needs to be female though... I had these readily available at home so I'm gonna use a quick release on one side going to the compressor line and then have a quick release female on the other side for the hose I'll use for the smoke to come out of. Link to comment Share on other sites More sharing options...
gimpydingo Posted May 10, 2016 Share Posted May 10, 2016 Got it! Link to comment Share on other sites More sharing options...
iNfEk Posted May 14, 2016 Share Posted May 14, 2016 so I tested the smoker early evening and I think I made my paper wad too big causing it to burn too hot and melt/caramelize my hose [emoji23] causing the hose to collapse and eventually pop the top of the can right after this video. I think my compressor flows too much air due to my pneumatic tool requirements and I've set it as low as possible [emoji23] https://vimeo.com/166408917 hopefully this weekend i'll actually get to test with it! I made this video a few days ago. Link to comment Share on other sites More sharing options...
StkmltS Posted May 16, 2016 Share Posted May 16, 2016 I bought a cheap digital air regulator at harbor freight because even my tiny 1.5 gallon compressor can't go low enough. I think the regulator was only $10 or so after the 20% off coupon. My DiySB rebuild Got Misfires? Link to comment Share on other sites More sharing options...
iNfEk Posted May 16, 2016 Share Posted May 16, 2016 oh! i also forgot to post these. I made by news paper wad a lot smaller and only let it burn for a little bit. set my regulator right before it starts bleeding out of the valve and turn it a quarter turn LOL. it's not bad and I was able to find a few leaks. unfortunately didn't get the best one of the GFB BOV leaking through the valve! shit. anyway... here's a few of the smoker in action https://vimeo.com/166659205 https://vimeo.com/166659231 Link to comment Share on other sites More sharing options...
iNfEk Posted May 16, 2016 Share Posted May 16, 2016 I bought a cheap digital air regulator at harbor freight because even my tiny 1.5 gallon compressor can't go low enough. I think the regulator was only $10 or so after the 20% off coupon. i've only successfully bought something from HF once. they're ungodly expensive to ship to me here in Hawaii LOL. but i'll look into that regulator. Link to comment Share on other sites More sharing options...
just_phil Posted July 27, 2016 Share Posted July 27, 2016 https://vimeo.com/176452918 Thanks to this thread, I've finally built my DIY smoke tester, and this is what I found out. Does this look like a leaking inlet? TIA Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
SBT Posted July 27, 2016 Share Posted July 27, 2016 Yep, there's a leak. - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
StkmltS Posted July 27, 2016 Share Posted July 27, 2016 Either someone is laying on the ground smoking a cigarette under your car, or there's a leak. Probably the latter, but could be the former depending on your neighborhood. Bonus points for leaving the label on the can-o-beans. My DiySB rebuild Got Misfires? Link to comment Share on other sites More sharing options...
cryo Posted August 28, 2016 Author Share Posted August 28, 2016 Just noticed this finally made it as a sticky. We started offering smoke test included in the price of every dyno tune at the shop quite a while back as this is one of the best things you can do for your car prior to a calibration. As these cars age they develop cracked vacation lines,intercoolers etc which play havoc on maf based fueling systems. Glad people are still finding this post useful! [sIGPIC][/sIGPIC] Providing unmatched customer service and a Premium level of Dyno/E-tuning to the Community cryotuneperformance@yahoo.com facebook.com/cryotuneperformance. Link to comment Share on other sites More sharing options...
3genlegacy2.5 Posted October 7, 2016 Share Posted October 7, 2016 Been very helpful! Sent from my Nexus 6P using Tapatalk Link to comment Share on other sites More sharing options...
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