I've been trying different gaskets on the turbo to header connection because it was leaking (car had a graphite gasket when I got it). I got stuck out on the road and tried a paper header gasket (worked for a couple hundred miles to get me home and such), then it blew out.
Then I got the graphite gasket from NAPA for the 84 or so Riviera T-Type and put it on. It worked good for a while, then I started hearing ticking again, and now just a whirring air/exhaust noise from around the turbo. Shined a light on the gasket and it looks like jut plain metal for the gasket again, all th graphite stuff is gone from the back half of it.
Why do the graphite ones keep dying? Could it be my nuts are loosening up some and the pressure is getting by it and killing it? Maybe one of the flanges is warped a little much and creates a weak spot ther ein the back?
It's really getting annoying... I finally killed most of my exhaust leaks with a repaired driver's side header and fiddling with the crossover for hours... Then I fix this one again and have it 99% leak free... then bam... comes right back.
Car also smells way rich cause this is right by the o2 sensor (at least I guess that's the problem).. The blm's show it's a little on the leaner side at idle, so I'd say it would have to be this fooling the o2 sensor.
Then again my direct scan could just be way off (see my other problem in the scan tool tech section).
I'm about to just say screw it and add new headers and turbo to my downpipe order this spring... I'd like it to not have to come to that though.
Thanks for any help in advance.
Then I got the graphite gasket from NAPA for the 84 or so Riviera T-Type and put it on. It worked good for a while, then I started hearing ticking again, and now just a whirring air/exhaust noise from around the turbo. Shined a light on the gasket and it looks like jut plain metal for the gasket again, all th graphite stuff is gone from the back half of it.
Why do the graphite ones keep dying? Could it be my nuts are loosening up some and the pressure is getting by it and killing it? Maybe one of the flanges is warped a little much and creates a weak spot ther ein the back?
It's really getting annoying... I finally killed most of my exhaust leaks with a repaired driver's side header and fiddling with the crossover for hours... Then I fix this one again and have it 99% leak free... then bam... comes right back.
Car also smells way rich cause this is right by the o2 sensor (at least I guess that's the problem).. The blm's show it's a little on the leaner side at idle, so I'd say it would have to be this fooling the o2 sensor.
Then again my direct scan could just be way off (see my other problem in the scan tool tech section).
I'm about to just say screw it and add new headers and turbo to my downpipe order this spring... I'd like it to not have to come to that though.
Thanks for any help in advance.