Hey guys... thought one of you on here could help me out. Saturday, I pulled everthing apart and installed a new cat-less uppipe on my LGT. The dealer did not have any gaskets available, but I have heard others re-use gaskets. Mine looked really good, so I gave it a try. Everything went well and I took the car out for a test drive.
Now for the problem..... Under boost, there is a loud shrill whine (like a COBRA supercharger). Starts under load just as boost comes up and stays there steady until you lift off the throttle. graemlins/wtf.gif
My understanding is that this is probably an uppipe flange leak. I do not know what flange it is or how to determine that. I did find, however, that I torqued some of the flanges in the wrong order.
SO......today I went out and pulled everything apart again and started over. I used spray copper sealant on the gaskets when reassembling and followed the torque procedures very closely.
The result.... I STILL HAVE A LEAK! ARGH! graemlins/doh.gif
So, I am ordering a full set of Subaru gaskets tonight to prepare for re-doing the work once again.
Could any of you offer any advice? I would be happy to have someone else listen to this (who knows more about Subies and turbo motors). PLEASE!!! I could use some help with this diagnosis.....
Thanks,
Steve