ktm Posted November 23, 2011 Share Posted November 23, 2011 http://www.instructa...ing-your-hands/ You hook a shop vac up to your muffler and have it blow air.....you are then able to hear/feel the leak without worrying about burning your hands. I just did this trying to find a few leaks on my LS1 swap. The problem with the leaks was that they were around the headers/collectors/welds and you only have so long to find them before the pipes get too damn hot (think seconds). I hooked up my shop vac and within 10 seconds found my two leaks that were immediately upstream of the passenger side O2 (which would cause it to run rich) and verified the driver side was fine. Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted November 24, 2011 Share Posted November 24, 2011 Didn't you hear about the blonde that burned her lips on the tailpipe while trying to blow up a bus.... lol Good idea KTM but doesn't the air go up and out any intake valves that may be open instead of building pressure...or does the TB being shut prevent that? Quote Link to comment Share on other sites More sharing options...
dan5138 Posted November 24, 2011 Share Posted November 24, 2011 TB being shut should be enough. I wonder if there is enough pressure there to use soapy water? My hearing isn't the best hehe. Quote Link to comment Share on other sites More sharing options...
ktm Posted November 24, 2011 Author Share Posted November 24, 2011 There is plenty of pressure. Plenty, at least on my LS1 setup. Both of my leaks, which were right at the collector on the passenger side, were blowing similar to you blowing on a spoonful of hot soup. Soapy water would work well for those troublesome leaks. Quote Link to comment Share on other sites More sharing options...
Tony D Posted November 27, 2011 Share Posted November 27, 2011 (edited) I would make a comment, but it's so un-PC I would be banned... Edited November 27, 2011 by Tony D Quote Link to comment Share on other sites More sharing options...
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