Need some exhaust help
#1
Need some exhaust help
I'm working on the exhaust and I'm stuck. It is the original exhaust; the exhaust pipe had a major rip in it near the muffler where a heat shield was welded. Sawzalled the exhaust off and took my trusty Dremel to cut off the rusty bolts holding the exhaust flange to the cat pipe. But they're not bolts, the pipe has studs at one end, nuts at the other. Okay, I cut those nuts off expecting everything to come apart. Not happening. Apply heat (Mapp torch - good thing I fixed those gas lines, eh?), bang the stud ends with a BFH and a drift, no movement at all. From all appearances it's like the studs have somehow affixed themselves into the cat pipe flange.
Can anyone tell me how to get these two pipes apart short of going to a muffler shop?
Can anyone tell me how to get these two pipes apart short of going to a muffler shop?
#4
It's crossed my mind.
Thanks, guys!
Another question: The flange on the cat side is supposed to be flat, not dimpled where the bolts are, correct? The reason I ask is there are nut-sized domed bulges beneath where the nuts were, I wasn't sure if it's a part of the flange or if it's something I need to Dremel down further.
Another question: The flange on the cat side is supposed to be flat, not dimpled where the bolts are, correct? The reason I ask is there are nut-sized domed bulges beneath where the nuts were, I wasn't sure if it's a part of the flange or if it's something I need to Dremel down further.
#7
If you are going to start replacing the exhaust you might want to look at this web sight. They have what you will need and it bolts right up at a good price. As you can see they have gotten rid of the GM restriction at the flex pipe on the down tube.
Mandrel Exhaust Systems
Mandrel Exhaust Systems
#8
I replaced mine with this , 2 inch stainless steel mandrel bent piece
https://rover.ebay.com/rover/0/0/0?m...2F192419804833
It helped my 2.2 catch its breath and run a touch better
Mandrel bent 2 inch tube no kinks
This bend is were you see a kink in the OEM pipe
A Venturi flange to direct exhaust gases
A 3/8 thick flange with a full 2 inch hole not the 1 3/4 inch OEM hole in the flimsy 1/8 factory flange
https://rover.ebay.com/rover/0/0/0?m...2F192419804833
It helped my 2.2 catch its breath and run a touch better
Mandrel bent 2 inch tube no kinks
This bend is were you see a kink in the OEM pipe
A Venturi flange to direct exhaust gases
A 3/8 thick flange with a full 2 inch hole not the 1 3/4 inch OEM hole in the flimsy 1/8 factory flange
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