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Did a boost leak check... heres what I found

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Old Oct 14, 2008, 01:51 PM
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Did a boost leak check... heres what I found
A ruptured vaccum line going into boost control soleniod, bad leak at turbo inlet coupler, and BOV leak... Fixed all leaks besides BOV and car pulls much harder, and my idle isn't messed up anymore... So moral of the story do a boost leak check every now and then...
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Old Oct 14, 2008, 01:52 PM
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Glad you got your issues figured out. How are those cams working out for you?
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Old Oct 14, 2008, 01:57 PM
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Glad to hear that you got it taken care of! I think Im in the same boat... Gonna find out how bad it is tomorrow...
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Old Oct 14, 2008, 03:03 PM
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Originally Posted by inneedof
Glad you got your issues figured out. How are those cams working out for you?
Excellent, thanks Billy, car pulls much harder up top now...but harder now that the boost leaks are fixed...
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Old Oct 14, 2008, 03:11 PM
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Can't wait to see your hp increase.
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Old Oct 14, 2008, 03:11 PM
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question: are you checking a gage while you perform the test??? if so does air leak while testing the system...or lets say you put to 20 psi..it will hold there until you manually release pressure
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Old Oct 14, 2008, 04:00 PM
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why do you think my car wants to die like i'm leaking vacumn or something .. happens when i've been driving for a while and come to stop press the clutch and the idle drops lower than normal and vacumn shows -14 instead of -16
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Old Oct 15, 2008, 07:48 AM
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Originally Posted by sharkm87
question: are you checking a gage while you perform the test??? if so does air leak while testing the system...or lets say you put to 20 psi..it will hold there until you manually release pressure
Yes I am using the mechanical boost gauge in the car, charge system to 20 psi, and on my car it bled of slowly...
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Old Oct 15, 2008, 07:49 AM
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how easy is it to do a boost leak test and what kind of pump do you have to use?
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Old Oct 15, 2008, 07:50 AM
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Originally Posted by DukEvo9MR
why do you think my car wants to die like i'm leaking vacumn or something .. happens when i've been driving for a while and come to stop press the clutch and the idle drops lower than normal and vacumn shows -14 instead of -16
First question... do you have a VTA BOV? That would explain the idle dip when coming ot a stop...
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Old Oct 15, 2008, 07:53 AM
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Originally Posted by bbyevo8u
how easy is it to do a boost leak test and what kind of pump do you have to use?
basically you are disc. the intake and hose from turbo inlet....and u connect your tester to the 2" inlet pipe(stock)

cap off any mbc and crankcase

and shoot it wit some air!..usin compressor most likely
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Old Oct 15, 2008, 08:02 AM
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I got a 3" PVC threaded coupler and a threaded plug, epoxied the plug in and drilled a hole into the end of the plug and inserted a valve stem into the hole. I recommend using a bolt/screw in type valve stem... then took off the MAF and installed it in my intake tube as it is easier to get to than my turbo inlet... Make sure to cap of MBC, and Crankcase as mentioned previously...
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Old Oct 15, 2008, 08:09 AM
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Originally Posted by Fast_Freddie
I got a 3" PVC threaded coupler and a threaded plug, epoxied the plug in and drilled a hole into the end of the plug and inserted a valve stem into the hole. I recommend using a bolt/screw in type valve stem... then took off the MAF and installed it in my intake tube as it is easier to get to than my turbo inlet... Make sure to cap of MBC, and Crankcase as mentioned previously...
yup, this works too.....i just didn't want to pressurize my intake tube seeing as it will never be anyway and wasn't to trusthworthy of stock clamp on inlet...
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Old Oct 15, 2008, 08:10 AM
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what kind of bov are you running?? i had the stock 8 plastic bs and it leaked immediately when air ran threw....9 dv holds well
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Old Oct 15, 2008, 08:11 AM
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my vacuum is at -35 at idle, is that good or bad or average. i have stock evo mr w/ the mitsu gauges
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