Exhaust blowing

[6705russell]

Well that's the second time in two weeks the exhaust has developed a blow, centre silencer where the pipe enters and edits has fractured at both ends, hairline crack all around the weld, anyone else had this problem?

 

[Jimmy]

Mine has a blow in the same place. It was flagged up at the MOT. The tester explained that it was caused by the hot gases getting stuck there when I do my short journey to work and back, i.e. not allowing enough time for it all to pass through - not heard of this before, but no reason to not believe him.

When I bought the car, the previous owner did also say that it had had a weld in the same place previously - there's always the possibility that it's this old weld that has now corroded too.

 

[Foxspeed]

hot gasses dont get "stuck"...mostly likely its uneven heating of the exhaust on short trips as such and like most modern cars the 197/200 will run retarded timing to help get the cat up to temperature quickly hence it may "hot-spot" in places before fully hot

 

[Siliconsteve]

hot gasses dont get "stuck"...mostly likely its uneven heating of the exhaust on short trips as such and like most modern cars the 197/200 will run retarded timing to help get the cat up to temperature quickly hence it may "hot-spot" in places before fully hot

Hot gases get stuck? WTF lol

 

[Jimmy]

hot gasses dont get "stuck"...mostly likely its uneven heating of the exhaust on short trips as such and like most modern cars the 197/200 will run retarded timing to help get the cat up to temperature quickly hence it may "hot-spot" in places before fully hot

Yeah that makes more sense. The guy had the gist of it I suppose, but perhaps didn't explain it to me properly. I should have realised that he wasn't mega clued up when he mentioned the Clio having a turbo....

 

[6705russell]

I am booked in for this Friday, going have the silencer removed and replaced with a new one, going to try three or four different types so can hear the right noise, fancy slightly more "growl"