RING GEAR R&R

09112 · Dec 11, 2018

Bad ring gear on my Allis B. After splitting the tractor is it a shop job or can this be done without any special equipment?

DLTTrekkers · Dec 11, 2018

Make a fire and throw ringgear in fire till red ....then on flywheel and let it cool by itself

orangeandgreen · Dec 11, 2018

Watched our ag teacher install one years ago. With flywheel laying on welding table, starter ring was placed on top of it and he started going around it with a rosebud. After a couple of minutes it fell into place with a tiny bit of help from a couple screw drivers.

09112 · Dec 11, 2018

Posts #2 and #3 just about answers my question. I know how to build a fire and use a screwdriver. Haven't figured out how to get it off yet but I'll just bet it's heat related and I can provide that as well. Thanks for the input guys.

Raspy · Dec 11, 2018

You can get the old one off by splitting it with a cutting torch, or if you have to, with a grinder.

Do not heat the new one to red hot, or by "throwing it" into a fire! That will anneal it and the teeth will be become very weak. It should not even get to the point of turning blue, which happens at about 450 degrees. A rose bud is the preferred method of heating them, but you could even do it with your kitchen oven. Keep it clean and have the flywheel ready to go. Heat it and drop it on. Do not pound on it.

Sawyer Rob · Dec 11, 2018

I agree with Raspy!

Put the ring gear in the oven...

You can cool the fly wheel with ice and drop the HOT gear over it...

SR

countrybumpkin · Dec 11, 2018

Raspy said:
You can get the old one off by splitting it with a cutting torch, or if you have to, with a grinder.

Do not heat the new one to red hot, or by "throwing it" into a fire! That will anneal it and the teeth will be become very weak. It should not even get to the point of turning blue, which happens at about 450 degrees. A rose bud is the preferred method of heating them, but you could even do it with your kitchen oven. Keep it clean and have the flywheel ready to go. Heat it and drop it on. Do not pound on it.

This is the best way, as for the flywheel, put it in the freezer the night before and leave it till you get ready to remove the ring gear from the oven.

09112 · Dec 12, 2018

I really like the oven and freezer suggestions. This seems to be the cleanest and probably the best way for a no nothing novice to get the job done. Thanks guys. I love this site, getting all the ideas is like being in a candy store. They're all good, but some are a bit better than others.

This is my required daily reading where I can get educated on so many subjects. At the moment it's tractors but the next project will probably be a motorcycle.

flusher · Dec 12, 2018

Don't use heat. As mentioned you'll mess up the heat treatment on the ring gear. Cool the flywheel with dry ice and the ring gear will slip on easily.

Good luck

09112 · Dec 12, 2018

Well, Flusher, that is even a better idea. I was having a bit of a problem with wifie on using the oven but I have a fridge in the shop and I can cool that down real quick. My thoughts were that I could in fact mess up the heat treatment if I got it too hot. My goal was to bake to 400 degrees max. But if the flywheel will shrink enough then I will be pleased to work with no heat at all. Easier all round. Thanks for the input. Sorry you moved back to the city guy.