I have a 1980 with 180k miles on the stock Y pipe/ cat back exhaust (as far as I know it is stock).
I developed a clanging rattle in the back right area and when looking beneath the car saw a rusted out spot in the elbown if theright side of the "Y" and a split in the pipe past the rusted spot
I ordered a new cat back Y Pipe set from Corvette Central which is due to arrive shortly.
I sprayed some magic juice "pb blaster or something like that) on the nuts n bolts yesterday.
I put her up on jack stands today and discovered a few things.
The clanging rattle was a heat shield that looks loose above the rusted spot.
I tried to remove the four bolt assmbley that attaches the Y Pipe to the rear of the catalytic converter with zero luck other than stripping a nut.....(who puts a set of 12 mm nuts and bolts on a 1980 chevy....figured it would be standard sizes)
I am not going to get it off at the rear of the Cat....however the access to the four bolt assembly in front of the Cat looks promising. If I can get the whole thing off with the Cat I should be able to heat up and free the bolts behind the Cat and replace the Y pipe.
Has anyone had these issues or has anyone delt with this sort of replacement before? Should I be aware of any looming issues with removing the catalytic converter?
I don't need an emission test on this thing....should I replace the catalytic converter while I am under there or is there a reason and a kit to just remove it altogether?
Also...there is a flat piece of heavy duty rubber, rectangular in shape, which looks like a hanger assembly, that attschesnlart of the Y pipe assembly to the undercarriage. The hole which had a bolt through it wore through and broke. It almost looks like a sound dampening part but I do not see where it is keeping metal from hitting metal.
That is a lot of info..I know....this is my first work i am doing to the car my dad handed down to me.....any tips or advice is gladly accepted as I am not a gear head...yet.
(2 large pics modified to links and added to single post-aapple)
|UPDATED|9/22/2014 4:25:47 AM (AZT)|/UPDATED|