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Discussion Starter · #1 ·
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what is the secret to removing the tail pipe turndowns on a 1990 1500 oem exhaust? i've drilled out the rivets , but it won't budge.
 

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Piaggio MP3, was 02 GL1800
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If you can find some liquid CO2, spray that on the inner joints. Cover the outer section to keep the spray off of that.

The inner metal will contract very fast and then you should be able to twist and remove the turn downs.

You must use a face shield and rubber gloves! Let that stuff get on your skin, and you will have 3rd degree burns.

Here is a link to a video showing a Lawson product which we use at my work place.

Brr-eaker
 

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Discussion Starter · #3 ·
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thanks
so you are saying they should be free now that the rivet are out?
 

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Piaggio MP3, was 02 GL1800
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Yes, assuming that you drilled the rivets completely out. Was the drill bit a few thousandths too small? If so, then there will be a thin ridge of the rivets left and you can't get them a part.

Try increasing the bit size one more Number size and ream the rivet holes. Then with some gloves on, twist the turn downs real hard, back and forth. Maybe then they will come loose.

Failing that, keep the tail pipe cool with some ice bags, and use a torch on the turn downs, warm them up and that should help. The reverse psychology of the CO2 process.
 

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Discussion Starter · #5 ·
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the baffling inside the turn down seems to be welded to it , does it come off with the turndown?
 
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