What are the torque specs?
Say, can someone look into what the torque should be on the exhaust manifold to downpipe nuts as well as the cat-back bolts?
If it makes a difference, I have a 2001 MC SS. Thanks in advance! |
My manual shows the specs as 15-24 ft-lbs of torque.
When we replaced the downpipe on my '03 we torqued them to 20 ft-lbs and there's no signs of leakage. Torque was rechecked after a hundred miles. |
Thanks!
I did 22 when I replaced my downpipe with the zzp 2.5" and checked yesterday after about 200 miles. Everything is still tight HOWEVER when I throw her into reverse with the brake on, it sounds like the joints are being pulled apart ever so slightly to leave a lower grumble in the exhaust but sounds like it is coming from up front. Do you have somethin like this? I'm likely being paranoid but if I am missing something, I'd like to know. Yes, the gaskets are installed :) Thanks again! |
Your regular brake pedal is depressed and the car makes a knock going into reverse?
It could be a transmission mount too. |
Tempting to say yes to but that isn't it at all.
Brake pedal on, put car into reverse and I get a louder exhaust sound with small vibration from the sound. The noise (and I hate calling it a noise because I like the sound) sounds like it is coming from the front. Perhaps the ZZP flex hose on their downpipe is making things a little louder when there is a mild strain in reverse? I don't know. |
Originally Posted by Shandley
(Post 390775)
Thanks!
I did 22 when I replaced my downpipe with the zzp 2.5" and checked yesterday after about 200 miles. Everything is still tight HOWEVER when I throw her into reverse with the brake on, it sounds like the joints are being pulled apart ever so slightly to leave a lower grumble in the exhaust but sounds like it is coming from up front. Do you have somethin like this? I'm likely being paranoid but if I am missing something, I'd like to know. Yes, the gaskets are installed :) Thanks again! |
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