Freezing a ...

[scotty walker]

...two stroke pipe to remove dents.

It works...

[Spode]

...two stroke pipe to remove dents.

It works...

I would like to try this

can you explain what you did

thx

[scotty walker]

...two stroke pipe to remove dents.

It works...

I would like to try this

can you explain what you did

thx

First, I took the suggestion from my son Tyler.
Second, I filled the pipe with water leaving about an inch and a half of airspace below the end of the stinger.
Third, I plugged the exhaust end with a 4 stroke muffler plug and the stinger with a 2 stroke muffler plug.
Fourth, I placed in freezer overnight.
Fifth, I checked in the morning, and some of the dent was gone.
Sixth, I thawed the pipe.
Seventh, I refilled the pipe, leaving maybe three-quarter inch airspace at the stinger.
Eighth, I repeated steps 2-4.
Ninth, I checked the pipe in the morning and nearly no dent at all....success.

(By the way, a pipe repair guy told me that I would probably have to freeze the pipe twice and that this method works.  It did.)

[Spode]

Cool thanks Scotty

Ill give it a try while im rebuilding my engine.

[Mikeyam187]

I'd be worried that some of the welded seams didn't weaken but if they did give way in the future, I guess you could just weld them up again.

[PJ205]

Did the same thing with an FMF Megabomb that was on my 450 and got the same results. Definitely works well.

[DeSto]

If you don't have a freezer big enough....

On 2 stroke pipes I use a crutch tip on the stinger (hose clamped and wired) have a 2" rubber end cap (hose clamped and wired on)from home depot that I bolted a shredded valve on it. Heat dent with torch til a glowing red and slowly add air.

4 stroke headers pop out easy when frozen