GTX ltd exhaust clamp coming loose

[Salem4659]

Hi all.
I have a seadoo gtx ltd on a 98. I had the carbs rebuilt by a “reputable” source. When I took it out on the sea it was ok for a bit but all of a sudden the exhaust fell apart from the rubber clamp to the muffler.
I noticed that the big clamp holding the exhaust together in the middle had also moved.
i retightened the big clamp and the others. It was fine for a bit then the muffler came totally off.
I decided to fix myself and also replaced the stator which involved taking the exhaust off among other things. I put it all back together and tightened everything correctly even using a torque wrench.
I took it out today and it was great. When I was flushing though I noticed the bloody big stainless clamp had moved again!
Does anyone know why this is happening and maybe a cure?
I’ve lost faith in the ski and once fixed it’s going to make room for a new gti se 170.

Thanks in anticipation

 

[mikidymac]

Replace the rubber bushings in the pipe mounts and the sleeves if they are damaged.

 

[Salem4659]

Nice one mikidymac I’ll give that a go.
thank you.

 

[Salem4659]

Quick update. Just checked bolts and the one behind the engine has snapped!
would that still be a result of the bushings and sleeves being worn?

 

[mikidymac]

Anything that lets that big heavy pipe move and vibrate is a problem. Even the broken bolts are typically caused by worn bushings.

 

[Salem4659]

Ok great. Thanks again for your help.
Another job for tomorrow!!