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Old 10-05-2013, 01:17 PM
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boost leak

so ive been helping my buddy fix some boost leaks on his truck and we are still getting a leak somewhere.

his truck is a e99, he swapped the turbo setup to l99.
i noticed on my intake plenums they used some sort of sealant to get a good seal.

when he installed the 3" intake plenums he just put a gasket in.

my question is, is the gasket enough?, or is sealant also required to prevent boost leaks.

we have verified intercooler/manifold boots are good. new int'l up pipes no exhaust leaks. new orings on the turbo (compressor housing, intake horn to manifold).

im stumped at this point, i told him to order a boost leak detector so that will be here soon.

thanks guys.
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Old 10-05-2013, 02:02 PM
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I think it depends on who he got the intake plenums from, I believe some use a type of o-ring, idk about a gasket. ive always heard o-ring or a sealant and sometimes guys go over kill and use both
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Old 10-05-2013, 02:05 PM
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ok ill ask him and see what he used. this is super frustrating, ive been over there helping him a lot lol
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Old 10-05-2013, 02:08 PM
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understandable, did he get the e99-L99 conversion as a kit from a vendor or did he piece it together himself?
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Old 10-05-2013, 04:03 PM
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it was an ebay purchase. we have fixed all the exhaust leaks and the boots are all good just cant seem to figure it out.

if i would have known he had the truck i would have told him to get a d66 instead of wasting all that money...
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Old 10-05-2013, 04:10 PM
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yeah he wouldve saved some money. did you happen to notice if the plenums looked like our stock ones? if so i would use some sort of sealant
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Old 10-05-2013, 06:35 PM
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they looked stock i will definately pick up some sealant. the guy he had install all of the stuff did a horrible job, missing bolts etc.
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Old 10-05-2013, 06:46 PM
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That's why I really really try to do all the work in my truck, I've had that happen twice with shops working on my truck and after that I've just done my.own work. Saves money and I have the peace of mind knowing it was done right.

Sealant will do the trick as long as its cured properly
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Old 10-05-2013, 06:54 PM
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ya ill drill it into his head not to drive the truck and let sealant cure.

we fixed everything else the guy goofed on

up pipes with only one bolt per side kinda mechanic
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Old 10-05-2013, 07:16 PM
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That's just....wow...and he calls himself a mechanic.

Well I hope you guys figure this out and that sealant does the trick, good luck
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