Is this gear hard to get off the flywheel? What tricks do I use to get it off? Or am I better off finding a good flywheel with the ring gear already on it?
Dave, no problem once the magnet clamp screws are removed, usually a tap or to around and it will fall off. You can heat the new one in the oven a bit if needed and it will fall right on. KGB
Just a heads up. The original ring gears had #14-24 threads for the magnet clamp screws. There was a thread on here a coupla years ago saying that some of the modern reproductions have 1/4" threads in them.
The hardest part about changing the gear is removing and replacing the screws. But doing that is highly recommended as a future reliability precaution anyway. Original screws were sometimes damaged and can break with nasty results. There have been threads from two different posters on this forum in the past several months after blowing magnets out through the hogshead.
If you do remove the screws to replace the gear, you should go one step further and remove and inspect each of the magnets for cracks also. You may also choose to recharge the magnets while apart as you get a better charge that way than doing a recharge as an assembly.
Either way, you will need to put the magnets back on in the proper polarity sequence (easy to do).
Make certain everything is fairly clean when you assemble it, and be sure everything is tight when done. I have not had one come apart yet, but I have seen the aftermath. You would much prefer to not experience that. (Although if you do, I might come back and tell you that it is part of the fun of model Ts)
Do drive carefully, and enjoy, W2
New screws can also break with nasty results if they are over-tightened.
You are correct. It dropped right off.
Some of the old screws were twisted and warped when I removed them. Makes me wonder if use made them warp or if they were installed that way. The flywheel is in good shape, but the ring was bad.
Thanks to all for your assistance.
Ken Todd I think you mean 1/4 - 24
No David, Ken actually meant #14-24 which is the correct size of the original brass magnet screws.