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Old Feb 28, 2024 | 01:34 PM
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Default Help needed

I need assistance with my passenger-side catalytic converter bolt.

While replacing the exhaust last night, I noticed the bottom bolt is bent and the thread is damaged. My concern is whether the bolt is removable. I don't have much clearance to see from behind, but I did notice that a 5 or 6-mm socket might fit at the front. I haven't attempted to remove it yet because I'm worried about breaking the bolt.

Does anyone have any suggestions or advice? I have attached some images for reference, Thank you.





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Old Feb 28, 2024 | 02:01 PM
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You might need to use a mechanic or exhaust shop to help you remove without causing any further damage or getting hurt.
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Old Feb 28, 2024 | 03:03 PM
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a quality stud extractor should get that out with no problem.

If you think the bolt is rusted in, give it a little squirt of PB BLASTER and let that soak before you try and remove it
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Old Feb 28, 2024 | 04:34 PM
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Based on this picture, looks to be screwed in. No bolt cap.

FS (For Sale) 2023 Like New OEM Catalytic Converters, Cats - CorvetteForum - Chevrolet Corvette Forum Discussion




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Old Feb 28, 2024 | 04:40 PM
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Just re thread it with tap and die. There's plenty of good thread left.
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Old Feb 28, 2024 | 04:47 PM
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Originally Posted by Bluehinder
Just re thread it with tap and die. There's plenty of good thread left.
I was going to suggest same thing. Take a die and recut the threads.
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Old Feb 28, 2024 | 06:40 PM
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When I removed my stock exhaust, my exhaust studs on the driver side came out together with the nuts. I would assumed it is the same for the passenger side, meaning you can unscrew that stud out, but definitely use alot of BP Blaster.
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Old Feb 28, 2024 | 11:17 PM
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Originally Posted by Bluehinder
Just re thread it with tap and die. There's plenty of good thread left.

yes, this is what I ended up doing, fixed the issue
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Old Feb 28, 2024 | 11:18 PM
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Thank you all for the great feedback
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Old Feb 28, 2024 | 11:23 PM
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Glad you were able to remove the bolt.
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Old Apr 28, 2024 | 08:30 PM
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Originally Posted by michelve
yes, this is what I ended up doing, fixed the issue
Do you recall what the specs were on the tap you used? Any tips? I need to do the same.
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