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Old 07-22-2010, 12:01 PM   #151
biodtl
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I could use a bit more clarification for those of us who don't know any better. If I follow the method described in the P&L document, I see in the picture they have a single hose clamped off right above the PVC cap. Is that the ONLY hose i need to clamp off/plug along with leaving the oil cap off?
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Old 07-25-2010, 11:45 AM   #152
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Anyone?
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Old 08-03-2010, 08:51 PM   #153
FleaDog
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bumped
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Old 08-03-2010, 09:10 PM   #154
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sweet that is using your head
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Old 10-26-2010, 11:15 PM   #155
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i got creative with this, cuz i didn't want to leave the house:
i used :

an empty artichoke hearts can (happened to be the same OD as the ID on one of my inlet couplings

a valve stem from a flat tire on an old bicycle

general purpose caulk



drill a hole in the empty can thats about the size of the valve stem

caulk it in from both sides, making sure its airtight, let it cure overnight



voila


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Old 05-26-2011, 12:58 PM   #156
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Bump because I haven't been able to find the right answer.

I was hoping you could help me figure out if pinching these 4 places is sufficient. I had seen talk of pinching a 5th location, but I can't find anything else that connects to the intake line



I found this image on a boost leak tester site. The only difference I can see is the top right line by the BPV. I don't know where that comes from, nor is it clear on my car which line it is. The arrow just left of the bright red rubber cap seems to split into 2 lines. I had assumed I would cap it closest to the intake tubing, but is there a reason I should pinch it after this junction (in between the round part and the intake manifold) ?



any/all help would be greatly appreciated

I assume the one I am missing is this:


but that line seems to have travelled a long way if its coming from the air intake to get there

Last edited by IceWilly; 05-26-2011 at 01:27 PM.
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Old 06-30-2011, 11:01 PM   #157
soob noob
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bump.. im still a little confused as to what i need to block off.

so from the pics above do i need to disconnect those hoses and block both openings from disconnecting those hoses? does that make sense?

also im doing this on a wrx so is that different than doing it on the STi?
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Old 07-12-2011, 01:53 PM   #158
Brock31
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Bumping this for some clarification.

On the stock turbo inlet and after MAF pipe, I couldn't find a PVC cap at Home Depot that would fit tightly inside the after MAF piping. The PVC only comes in whole sizes. 2", 3" etc.

The 2" is too small and the 3" is too large.

Also, where can you get a shrader valve?
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Old 07-22-2011, 01:02 PM   #159
Brock31
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Bumping again...

I have sourced the parts to fabricate a tester of sorts.

I just would like to clarify the hoses to be clamped off in the pictures above. Is it 4 hoses or 5 ?
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Old 07-23-2011, 10:39 PM   #160
Brock31
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Quote:
Originally Posted by IceWilly View Post


Can someone identify the "valve" / connection that is identified with the upper-most red circle? Just above the intake manifold to the left of the throttle body.

That connection has a sensor on it that when I unclipped, found the section that is connected to a hose just basically hanging there. The connection was very loose.

I was able to plug the hole with my finger while pressurizing the system. Now I can hear air leaking from what seems to be underneath the upper coolant tank?

Any ideas?
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Old 07-23-2011, 10:52 PM   #161
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Bump...
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Old 07-24-2011, 08:21 AM   #162
Brock31
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....crickets....
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Old 07-24-2011, 08:46 AM   #163
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I think the 05 Sti and WRX have an in-line sensor, white or grey in color on that hose. that is supposed to detect a leak and throw a code.

The Sti has dual hoses venting the breather cover for the PCV. There is a PCV cover under the overflow tank. One of the two hoses would be blocked if you did a good job blocking hose #3 to the bottom right.

I am new to Sti PCV routing, so I never traced the second set of PCV hoses. Trace it and block it.

Most likely even when you're done with blocking the hoses, you're not done yet. You will have to turn the crank manually slowly, as you feed air into the test rig, to find the valves closed position.

Depending on which turbo you have, it may let air go directly into the exhaust, from the compressor housing. It may not do that hot, but do that cold.
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Old 07-24-2011, 10:09 AM   #164
Brock31
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Tanks Vlad.

How do I turn the crank manually?
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Old 07-24-2011, 11:36 AM   #165
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...bump
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Old 07-24-2011, 12:09 PM   #166
Brock31
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OK...so this leak under the upper coolant tank has been found. Air is leaking out from the base of the front pass. side injector. I have also found that turning the crank manually stops that leak , but also prevents me from building any pressure. I have plugged all hoses except for the smaller hose next to the BPV. I can hear air entering the engine I think, but I don't know where.
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Old 07-24-2011, 04:07 PM   #167
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Well, you found a leak by the injector, right? that's good news, you're moving forward. Replace that o-ring.
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Old 10-03-2011, 11:16 PM   #168
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thanks for the write up
will come in handy
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Old 04-24-2012, 12:26 PM   #169
Blow0515
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I know it is not as cool but can I put air in the system with a nice bike pump. All my tools were stolen and I am going to wait until Fathers day to get a new compressor to hopefully find one on sale.
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Old 04-27-2012, 02:58 PM   #170
Blow0515
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Found a leak fixed it now to see how things work out!
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