No boost!?!

[kkskater]

After doing the shifter linkage mod with the bearings, I take my car out for a spin to see if there is a difference. Then I notice no boost! I was running 20 psi fine earlier and now it is at about -7 vac then goes to 0 when it is sapoossed to boost. I have no idea whats wrong. There is a hole in my exhaust manifold but it has been there before and nothing like this has happened. Also when I shut off the car around the battery area it sounds like something is bubbling like its boiling. I just replaced the optima battery so I hope its not that again. How do I check if my turbo is blown? I dont think it could be that though because it was boosting fine about a hour before this happened. This car is really starting to piss me off, just bought it a week or two ago and have already had more problems then every previous car ive had combined . Any suggestions on what could be the problem? Thanks, Kyle

Look at my mods list to get a idea what kind of turbo system im running if that helps

 

[boostvr4]

Check if the cotter pin that holds the wastegate accuator is gone, the arm may not be on the wastegate anymore. Check for shaft play to see if you have a blown turbo. My turbo went from 25 psi to nothing in a matter of seconds, so it can happen.

 

[kkskater]

I checked for shaftplay and the turbine seems to be stuck! Isnt it saposed to spin freely well mine doesn't budge at all, there is no shaft play because it seems to be stuck. Does this mean its blown or is there a fix to it? This Hahn super 20g's turbine looks crazy the turbine blades are almost double finned. I dont see any chipped blades or really bad scratches or anything.

 

[Redline8419]

the shaft should be spinning freely. If it is locked up I would say that something is wrong with the turbo. But as for what caused it to do that...i dunno. I would think it wasnt getting oil or something foreign got to it. I'm sure its not what you want to hear. But if it makes you feel any better I am going through turbo problems too. I hope you figured it out and get it fixed

 

[kkskater]

Ok after a night of being pissed off i went out to my car and messed with the turbine it broke free, pretty easily also. I heard something metal either breal loose or fell. I checked my intercooler pipe and nothing. It spins pretty good now, and it only wiggles just a very little bit up and down. Do you think its safe to start up? Any suggestions on what it could be?

 

[boostvr4]

First thing is that the wheel your moveing is the compressor wheel. The turbine wheel is the exhaust side. I wouldnt start it until you find out what was stuck in there. I would start by removing the downpipe. PS Hahn Turbos :thumbdown

 

[kkskater]

The compressor wheel was what was getting stuck then, I started the car up before I read your post, it locked up again. The compressor wheel broke free again and I heard the metal whatever it is fall or break free. Im taking off the downpipe but I need a jack my car up to disconnect the exhaust. Hopefully its not to bad and I can get whatever is in there out. Any suggestions on what this could be

 

[Redline8419]

when you "break it free" is there axial shaft play (in and out shaftplay). If there is ANY then the turbo is bad. But it doesnt sound like the turbo is in great condition anyways. I inspect the turbo before you start the car again, it wouldn't be a good thing compressor wheel slamed against the side of your hosing and throwing metal into your intercooler and possibly into your intake. But i am not sure about your turbo set up but to see my turbine, I have to remove my 02 housing(which should be the same), but to remove my 02 housing I have to remove the turbo...which is not hard at all if you have it disconnected from the dp(should just be 4 bolts on the top.) To be completely honest, unless you are running an odd air filter, your system (for the most part) should be closed, so you have to ask yourself where did the metal come from. My guess is that it is something in the turbo itself that is loose, but im not a mechanic. But i taken apart a blown turbo and saw that the shaft (connects turbine and compressor wheel) had sheered itself in two. But get your turbo off, inspect each side to make sure nothing is rolling around in it. Then get your hands on the compressor wheel and turbine (each end of the turbo), spin one side and see if the other follows. If it doesnt then it could be that they are no longer connected. Otherwise I would take the turbo somewhere cause if something is rattling around inside it and was not there to begin with, it probably screwed something anyways, but then you gotta figure out where whatever was rattling around came from. But like I said I am no mechanic, but I do have a small bit of experience with my car and turbos. I hope everything works out and let us know whats going on.

 

[kkskater]

I took off my turbo and shook it and a little something fell out. I believe its a piece of my exhaust manifold, the owner before me did a weak weld job and there is holes. I inspected the turbo for shaft play and visible breaks in the fins. I couldnt see any chips and there is no shaft play. I didnt take the turbo apart to inspect the inside but I think im alright. Any suggestions in what kind of damage this could have done internally or do you think im in the clear? I ordered new gaskets and I will install it once again and hope to be boostin once again. Also does anyone know where to get a cheap t3 manifold? Mine is really shatty hence the hunks flying into the turbo. Thanks, Kyle

 

[boostvr4]

Your turbo wont bolt up to a t3 Manifold. Look into a ported 2g or evo3 manifold.

 

[kkskater]

Im pretty certain it will since the manifold I currently have is a t3. Its all modified, the manifold, downpipe, turbo. Thats why I really hope that this turbo is alright so I dont have to do major modifications to get a stock turbo system to work.

 

[boostvr4]

Hahn turbos use a 10cm2 turbine housing, that bolts up to the stock manifold flange. Unless your turbo has been dinked with big time it should be a 1g, 2g or evo3 manifold. Pics?