Over the years I've changed several. I use a large chisel and split the old one in a gear tooth. It will come right off then. Take a torch and put light heat all the way around the New Ring gear, this will expand it some. Keep the heat on the inside of the ring and away from the teeth. Set it on the Flywheel and use a large drift and drive it up tight against the sholder and let it cool. Your done. The Wizzard
i have done many of these also, you can just knock the old one off with a punch and a hammer, just work your way around it. as pistnbroke said heat it with a torch, just run around it slowly but not to slow, and they always just fall on the flywheel for me.....if it doesn't fall in place i'd heat it more, i wouldn't beat it on...heat it in a smooth circular motion probably 20 times round should be good, then just let it cool......done
I run an automotive machine shop in Canandaigua New York. I grind a lot of flywheels and change many ring gears. Here is how I do it at work. Take a brass punch and a big HAMMER and knock the old ring gear off. Put the new ring gear in the oven at 450 degrees for about 15 minutes. Use a pair of pliers and take the gear out of the oven and drop it on the flywheel. CAUTION: Only attempt after WIFE has left for a trip to the MALL! Clean up any evidence in the kitchen! your life may depend on it!
Just to add some spice to this thread. What if you want to re-use the existing ring gear...like if...for instance an ex HAMBer sold you a flywheel with the ring gear on the wrong side of the flywheel? If I gently heat the ring gear with a torch and carefully tap it off I am hoping I can keep it in good nick. Any advice, along with that already above, appreciated. Pete
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