up pipe leak

[bullet450]

i just replaced my up pipe gaskets with some carquest brand ones and i still have a leak. i tightened the bolts down as hard as i could. is there a way to tighten them without pulling the turbo again and also is this why my boost is reading way lower than usual and drops instantly when i let out of it? thanks for any help

[Mikes7.3]

I went with the bellowed up pipes and did away with the donuts. no more leaks
Your boost being low sounds like something is leaking check anything you unbolted and retighten.

[Marty]

Did you use a new white seal when you did the carquest donuts?

[bullet450]

no. i used some grey lead looking color gaskets

[Marty]

hmmm The ones from Ford are white... where did you get the gray ones?

[bullet450]

they are carquest brand

[strokin_early_99]

If they leak, you did not tighten them enough. I have over 50psi of backpressure and there are no signs of leaks for the last 6 months. I have put these in a few trucks now without any problems.


They should be grey/silver. They are graphite. I have not seen the white ones before.