Boost leak / turbo bleeder???

[Texas gst]

I hope you guys know this one. I'm confused. I went to do my first boost leak test ($5.50 homemade tester) and as soon as I get some pressure I hear it. Thought it was my tester, but it's on the turbo. There us what looks like a bleeder valve (screws in with a nipple on it) on the bottom part of where my air inlet hose goes on. Sorry no pic right now. I'm at work and using my phone. Anyone know what it is and if something is supposed to be hooked up to it, or tightened, or whatever. Nothing is hooked up to it and as soon as I pressure it up it comes out there. I'm just using the factory boost solenoid and running like 11 pounds boost. It was hooked up wrong when I got it and maxing out my gauge (20+). I'm lost right now

 

[TSITurbo95]

You are still on the stock t25 correct?

 

[Texas gst]

Well I'm not 100%. I just got this like a week ago. All the numbers I can find say Garret m10 .48,.49. Don't think it's the original, but ???

 

[99gst_racer]

Post a picture.

I'm willing to bet it's just a vac. nipple on the compressor cover, but a picture will tell the tale.

 

[Texas gst]

I've got to wait till I get to the house at lunch. Can't do it from my phone. If it is, than what is suppose to be on there, and where does the other side go? From that to what?

 

[99gst_racer]

If it's a vacuum nipple, it's typically used as the pressure source for a wastegate.

 

[kimcheefists]

I'm with Paul on this one. We need a picture to confirm this but it either hooks up directly to the wastegate or a manual boost controller (MBC) if you have one.

 

[Texas gst]

I'll put a pic at lunch. If it goes to the wastegate, then I'm lost. I've got solenoid hooked up to the wastegate. If that is suppose to go there than where does the solenoid hook up to? Am I loosing power like it is since when putting pressure on it, it comes straight out there? I'll get a pic shortly, might just run to the house real fast. Give me like 30 minutes

Ok, first pic is what I was talking about. Second is how my lines are hooked up (not an artist and kinda in a hurry, sorry) cant get second one to load up, but I teed off the line going to the bov to the top of the solenoid, bottom of solenoid to wastegate.

 

[kimcheefists]

That's a stock T25 turbo and that nipple is originally hooked up to the wastegate/boost control solenoid. If you don't know what/where that is, it is located near the coolant overflow tank. If you have a MBC, a line goes from that nipple, to the MBC, and finally to the wastegate actuator.

This site should come in handy.

 

[Texas gst]

Ok. So can you help with my routing. I got like the pic, tee-d off the bov line but mine goes to top of solenoid. I'm confused where lines go. Right now is. Tee from bov line>top of solenoid>bottom of solenoid>waste gate. That one I asked about is just "there"

 

[99gst_racer]

Yup, that's an open boost leak as it sits.

Instead of Teeing into the BOV line, use that pressure source on the compressor cover.

If it were mine, I'd eliminate the solenoid. Just run a vacuum hose from that fitting on the turbo directly to the pressure port on the wastegate actuator. Probelm solved.

 

[Texas gst]

So if I'm understanding than straight line the bov, go from the turbo nipple in question to top of solenoid and bottom of solenoid to waste gate?

 

[kimcheefists]

The line that goes to your BOV goes straight to the intake manifold. Here's a picture I googled for your question about the nipple off of your turbo.

 

[Texas gst]

Now I'm real confused, that has a tee to the actuator. If that's right than the solenoid has an extra line that's open, or if the solenoid is eliminated than where is that line going to? If it goes to a boost controllers than where does the other line on the controller hook up to? I'll try it hooked to the solenoid and then solenoid to actuator. And what happens if you have a boost leak? Lack of boost, bad for engine?

 

[nek]

I think the easiest thing for him to do is just bypass the bcs and just run that nipple straight to his wastegate. Plug the other ports.

 

[kimcheefists]

Now I'm real confused, that has a tee to the actuator. If that's right than the solenoid has an extra line that's open, or if the solenoid is eliminated than where is that line going to? If it goes to a boost controllers than where does the other line on the controller hook up to? I'll try it hooked to the solenoid and then solenoid to actuator. And what happens if you have a boost leak? Lack of boost, bad for engine?

Do you have a manual boost controller? If not the picture that I showed you is how the hoses are routed from the factory. The line going to the BCS goes to the top port of the BCS. The bottom port of the BCS goes to the intake pipe.

If you didn't understand any of that then do what nek said. Simply connect a line from that nipple to the wastegate actuator.

 

[Texas gst]

That's exactly what I was looking for. And now I know what the extra nipple on the intake pipe is for.

How do I mark "solved"??