how to: boost leak test
#1
Evolving Member
Thread Starter
iTrader: (2)
Join Date: Oct 2011
Location: Reno, NV
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
how to: boost leak test
ok guys so i tried to do a boost leak test on saturday and fail;(
i had some probmlems 1. is i connected the boost tester on the turbo and when i went to put air, the guage did not move at all. Its like when i was pressing air it did not want to go in.
Another thing is i always see people in videos spraying the soapy water by the bov and how is it possible when the whole intake is tooken off because it is originally connected to the turbo. When i did the test i disconnected the air filter, stock intake and all the hoses around it.. i dont think it is right but it doesnt make sense where they will be connected if the tester is conneted at the moment.
i had some probmlems 1. is i connected the boost tester on the turbo and when i went to put air, the guage did not move at all. Its like when i was pressing air it did not want to go in.
Another thing is i always see people in videos spraying the soapy water by the bov and how is it possible when the whole intake is tooken off because it is originally connected to the turbo. When i did the test i disconnected the air filter, stock intake and all the hoses around it.. i dont think it is right but it doesnt make sense where they will be connected if the tester is conneted at the moment.
#2
Evolving Member
Thread Starter
iTrader: (2)
Join Date: Oct 2011
Location: Reno, NV
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
ive read the how to's but i dont get what to really disconnect and what is left to stay connected basically.
Anyone have basic pictures to look at on a stock evo 8 because i know an inake wiill change the look on the boost tester
Anyone have basic pictures to look at on a stock evo 8 because i know an inake wiill change the look on the boost tester
#3
EvoM Guru
iTrader: (2)
boost gauge? maybe because your boost gauge is tapped from the manifold, after the throttle. move the throttle to get a boost reading
I dont like reading vac so I tap my boost before the throttle but I do have a switch if I want to read from the manifold (for some reason)
bov's are normally closed even if you disconnect it. the bov will (be forced) open/leak at 23 psi (guessing). if youre done testing the bov, just install it backwards temporarily if you dont want to hear any hissing from it
I dont like reading vac so I tap my boost before the throttle but I do have a switch if I want to read from the manifold (for some reason)
bov's are normally closed even if you disconnect it. the bov will (be forced) open/leak at 23 psi (guessing). if youre done testing the bov, just install it backwards temporarily if you dont want to hear any hissing from it
#5
Evolving Member
Thread Starter
iTrader: (2)
Join Date: Oct 2011
Location: Reno, NV
Posts: 106
Likes: 0
Received 0 Likes
on
0 Posts
it does help a little but this car is modded as well. im just wondering if i have to plug the air intake from the stock engine like with something so air wont go out when im boost leaking.
Like when i remove the intake and plug the boost tester, the intake is going to be off and open since it is not connected should i plug it with something or let in hang and open?
Like when i remove the intake and plug the boost tester, the intake is going to be off and open since it is not connected should i plug it with something or let in hang and open?
#6
EvoM Guru
iTrader: (2)
take the intake hose completely off, detach it from the turbo, bov and vent tube.
personally I do not like testing the intake hose pictured in one of the how-tos. first it never really sees boost. second, you'll be sending high pressures up the valve cover vent and possibly blow its seals
personally I do not like testing the intake hose pictured in one of the how-tos. first it never really sees boost. second, you'll be sending high pressures up the valve cover vent and possibly blow its seals
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
CounterConcept
Evo X Engine / Turbo / Drivetrain
11
Oct 7, 2017 09:43 PM
fireroasted
Evo Engine / Turbo / Drivetrain
9
Nov 30, 2014 01:39 PM
deathtracks
Evo Engine / Turbo / Drivetrain
9
Sep 27, 2010 07:00 AM