Getting this muffler off

The back muffler is all so badly rotted that I am surprised it isn't blowing. I didn't realise there was a support bracket by the tail pipe until I had it away with the rear bumper. It must have come off years ago. Here's the question though, when I get a new rear box how do I take off the old one particularly and break the join without making a mess of the pipe that runs from Cat to back??




There are no bolts or nuts to speak of, all rotted away!!

Maybe a chisel in the gap and a nice swift blow with a suitable sized hammer. Maybe brace it from the rear to avoid bending the pipe.

Just grind the shit out of it will soon come apart

Knew it wouldnt be long till a grinder was suggested id go for the chisel option first and break out the grinder as a last resort.

Dave cc wrote: Just grind the shit out of it will soon come apart

I was thinking of the grinder or a hacksaw down the join. Are the two sides held with a nut and bolt or is one threaded or have a welded nut for a bolt to go in. I need to preserve the end that is staying.

I'd still like a straight system!!

Use a hack saw between the joint if the bolts are that rusted it wont take long then chisel the tack welded nuts off

markyp2000 wrote: Use a hack saw between the joint if the bolts are that rusted it wont take long then chisel the tack welded nuts off

Aha, so there are welded-on nuts. Thanks Mark. Which side do you know?? I'd guess on the muffler side. I ask cos I might dremel the heads of the bolts off (what's left of them hehehehehe - should take only minutes). The stuff was flaking away to the touch. If I put a hammer to this the remaining pipe ain't gonna survive.

As said grinder cut off the weld and clean up then just use a m8 nut and bolt

I heated mine with a torch and it came out easy!

Rodden87 wrote: I heated mine with a torch and it came out easy!

What, with a spanner ............there is nowt left to put a spanner on with this rot box. LMAO
I'll order a box next week when my ship comes in then as soon as this is off I can dive in to the rust in that area before replacing it.

Haha when I changed mine all I did was break the nuts of think that happened just trying them with a spanner! But both flanges were still stuck as, so I heated them and them and smacked with a hammer bobs your uncle!

Rodden87 wrote: Haha when I changed mine all I did was break the nuts of think that happened just trying them with a spanner! But both flanges were still stuck as, so I heated them and them and smacked with a hammer bobs your uncle!

Ah yes I see what you are getting at. I can go with heating to break the bond - you choose impleemnts like I do, torch and hammer. Hehehehehe. Gottit now! It's what I would do but I think once the heads are off the bolts the thing will come away peaceably.