mapp gas ?

[barmstro]

I'm having an awful time trying to remove rotor from crank.
I've tried a puller and it just pulls off stripping threads.
I put heat on with a propane torch and air impact , still nothing.
What is mapp gas,does this have to be red hot ?

 

[rightious]

mapp gas is just a gas that gets the torch hotter than propane can. if you already tried heat, switching gas, to me, is not going to do the trick.

 

[Guest]

How about that "freeze" spray stuff?? Members here have reported success with it...

The auto parts stores carry it - use liberally.

 

[cyclefvr2]

shouldnt have to be red hot, but make sure your heating the rotor only, and not the snout, cause it will swell in the rotor
hit on it a few times with a rubber mallet, try some penetrating oil, then heat the rotor hotter than hell around the snout,try to keep away from the threads,good luck

 

[posplayr]

I'm having an awful time trying to remove rotor from crank.
I've tried a puller and it just pulls off stripping threads.
I put heat on with a propane torch and air impact , still nothing.
What is mapp gas,does this have to be red hot ?

It is a few hundered degrees hotter than propane; It made the difference getting my GS1100E rotor off. As previously said keep teh heat off of the magnets, It still takes alot of force :lol:

 

[littleroot]

I'm having an awful time trying to remove rotor from crank.
I've tried a puller and it just pulls off stripping threads.
I put heat on with a propane torch and air impact , still nothing.
What is mapp gas,does this have to be red hot ?

All I can say is mine came off with without heat using the OEM Suzuki puller with about 160 PSI 1/2" impact hammering for about 15-20 seconds. I had the rotor nut removed but I thought I read here other have done it with the nut loose but not removed.

Funny thing, first time I tried the impact I actually forgot to remove the rotor nut. Went back and read some threads and then realized my mistake. I then removed the nut and used the puller tool again as stated above

 

[almarconi]

Mapp gas is good especially when used with oxygen. Bernzomatic makes a small portable torch that uses mapp and oxygen cylinders. Much hotter than propane/air. The torch is good to have because you can even braze with it, also works real well if you have to solder a wet pipe.

 

[posplayr]

Mapp gas is good especially when used with oxygen. Bernzomatic makes a small portable torch that uses mapp and oxygen cylinders. Much hotter than propane/air. The torch is good to have because you can even braze with it, also works real well if you have to solder a wet pipe.

Thanks for teh tip. That would be a cheap way to go using the HTS-2000 brazing rod.
http://www.thegsresources.com/_forum/showpost.php?p=965000&postcount=5

 

[barmstro]

Picked up a cyclinder today at my local hardware store.Only concern is
the guy at the store says I need a different tip,not the one on my propane torch.The didn't sell such a tip and neither does local welders supply.
My tip looks looks like it will fit,so hopefully it won't melt B4 I get that
rotor off.

 

[almarconi]

Do you have a home depot nearby? Bernzomatic makes a torch head for mapp gas. The home depot should carry their products.

Here is there website

http://www.bernzomatic.com/products/torches/professional-torches.aspx

 

[SqDancerLynn1]

Mapp gas is good especially when used with oxygen. Bernzomatic makes a small portable torch that uses mapp and oxygen cylinders. Much hotter than propane/air. The torch is good to have because you can even braze with it, also works real well if you have to solder a wet pipe.

Yes they work great, be careful of the oxygen bottles I have gotten them from the store only to find them empty. With a little playing you can even cut thin metal. I once cut a master padlock off with one and no it was not in a position to where I could hit it with a hammer

 

[barmstro]

Tried mapp gas but my (motion pro)puller stripped ,pulling off of rotor.Sure wish I took Rays advice and bought OEM.
I wonder it it's too late,the threads on the rotor look pretty rough
but not as bad as those in the puller.
I'm running out of idea's and patience.
Should I buy the OEM puller ,or will I just destroy it on my damaged
rotor.

 

[first timer]

Do a search about packing grease in the thread bore. This is a pretty good trick i hear. Basically it uses hydralic pressure to help pop off the rotor.