harmonic balancer
 

cant get 1 of my balancers off my 500hps 1 engine came off no problem the 2nd engine wont move, using 1/2 inch air gun and even a 2 foot breakerbar and it is actually bending the puller.

any ideas thanks

Heat it with a torch. Big Blocks are notorious for that. I have broken many pullers on these balancers. Sometimes I have to heat them with a torch. Heat the inside of the balancer, but stay away from the crank.

I rarely re use the balancer anyway when I do a complete re build.

Yes, heating the balancer helps. I have done it while having the puller applying pressure to the balancer. BTW, the hottest gas I would use is M.A.P. Dont recommend using acetylene and O2

Is the oxy act comment form experience, melting things?

use a rose bud, that way you don't concentrate the heat. I have only done it once, and it was before I put the puller back on.

Hint, don't touch it when it falls on the floor.

No, I never tried oxy/acty on a crank dampener.

Make sure you get one of the good hardened pullers. I bent 3 of the regular ones. The hardened one worked well.

If crank gets to hot hit it with ice better yet dry ice contract the crank .

This might be a stuip question, but once you removed the crank bolt make sure there is no big washer still left behind. If there is you will pull on that balancer for ever and never get it off. Only reason I ask is my buddy was helping me tear down a ford 302 and tried to remove the balancer and snaped my snap-on puller. I never broke this puller before and once I checked I seen that there was a big washer still stuck in there. Good luck.
Erik

That is good advice crapr. I have actually done the same thing in my younger days. Once you have tension on the puller(get a Snap-On or similar puller), hit the end of the puller bolt with a hammer. This should shock the balancer into moving. If it does move, then tighen up the puller bolt again. Then hit it again. It should move just a little every time. I never heat stock balancers that have rubber in them for fear of melting the rubber. If you do it the way I described above, it will come off. It may take a little time, but it will come off. I have never been beat by one. Had one whip up on me for a while, but I eventually won:drink:. Hope this helps, Eddie.