Honda CR-V (1997 - 2002) - 2001 2.0 petrol, loud cracking noise from exhaust

Honest John Back Room » Technical matters
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Sat 29 Mar 2008 12:01
2001 2.0 petrol, loud cracking noise from exhaust - keybored
Recently had a new cambelt and tensioner done by a local one man garage and all was fine for a week. I now have a loud cracking noise coming from the exhaust area both when it's cooling down and also when heating up. Now I know that exhausts make a ticking noise as they cool down but this is more than a tick; also startled an old dear as she walked past the other day just after turning off the engine, it's that loud!

I went back to the guy who did the cambelt and asked if it could be anything to do with the work he did when changing the cambelt; his guess was that it was coming from the catalytic converter and maybe I need to get an emissions check to see if the cat is damaged. I had a complete new exhaust from the cat backwards about 6 months ago, so the exhaust itself is in good condition.

Do any of you mechanical boffins have any theories regarding this annoyance? TIA, Paul
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