Changing ring gear

rrlund · Jul 17, 2016

I never had to change a ring gear on a flywheel. I just split the 1365 to put a clutch in it. The starter grinds once and a while. There are a few teeth on the flywheel that don't look good.

I know you have to heat a ring gear to expand it to get it on. Will a cutting torch get one hot enough or does in need to go in a forge or something?

old popper · Jul 17, 2016

You can get it hot enough on your gas barbeque grill.

PJH · Jul 17, 2016

A torch will work Randy. I've only fooled with two cylinder Deeres but I don't know why that would be different. I built a fire in the driveway to heat the ring to install it.

rrlund · Jul 17, 2016

Alright,thanks guys. I hoped the clutch shop where I send things did them,but the wife just texted my son who works in the engine shop next door and he said no,so it looks like I'm on my own on this one.

coonie minnie · Jul 17, 2016

I've done a few. Usually put the ring gear in the vise, and heat the inside of the ring gear in a back and forth motion. After about two minutes or so, clamp the ring gear with two vise grips, and it will set down over the flywheel. It is really pretty easy. Good luck.

coonie minnie · Jul 17, 2016

Should have added that I do the heating with torch. I've been told the kitchen oven will work too, but my wife would frown upon the flywheel waiting for the ring gear on the counter...

RWT · Jul 17, 2016

If the new one has some oil on it about the time it starts smoking good it should be ready.

The one I did, it was hot enough but from shipping wasn't a 100% round any more. Might want a hammer handy to tap on it.

When mine cooled down it was no longer completely seated. I took a broad punch and went around it seating it.

It's still going too.

RT

mmidlam · Jul 17, 2016

I have put the ring in the oven and flywheel in the freezer. A dry ice plant opened next to the ethanol plant so now I lay some dry ice on the flywheel.

Mike M · Jul 17, 2016

I've done plenty on 2 cyl. Deeres. Take it off cold with a large punch and hammer. If you mark it you can put it back on another spot where the engine does not stop at. I have heated them with a propane torch too. You only need them hot enough so spit sizzles on them. They drop right on. You can even build up bad spots with a welder and regrind the bevel. Or if avail. get a new one.

4520BW · Jul 17, 2016

Be sure you put it on right side up.

Michael Soldan · Jul 17, 2016

I did one on a "C" Chalmers when I was 14 years old. I built a little fire in the driveway with some scrap wood and put the new ring gear in the fire while we chiseled the old one off, it slipped right on and went into place with a few taps with hammer and punch. I was also told you can take a ring gear off and reverse it and its like a new ring gear again.

redtom · Jul 17, 2016

I always prop em up on 3 or 4 iron blocks and run the torch around the inside for a bit then set it on with pliers and tap it home as it cools. just hot enough to sizzle is right.

gene bender · Jul 17, 2016

Just go round and round with the torch and it will expand enough to fall off. Same way to install doesent take a lot easy to do ive did it many times.

Ray · Jul 17, 2016

A torch will do it. Depending on the teeth chanfer sometimes you can just take it off,turn it around and have new teeth.

Mike(NEOhio) · Jul 17, 2016

I did one on my Ford, Randy. Not hard. It should be hot enough so that is spins freely on the flywheel when you slip it on.

Hobo,NC · Jul 17, 2016

This is close to the way I do it. I have been lucky to have a touch

https://www.youtube.com/watch?v=dzmZqq5DfgI

I lay the new ring gear on a set of jack stands. NOT ON THE FLYWHEEL When I heat it I don't work it in one area I go around it, I count to 12 it takes me 12 slow seconds to go complexly around the flywheel. I go around it 12 to 15 times the flywheel will turn blue hot. I use a set of channel locks to grab the ring gear and slip it on the flywheel. I have a hammer and a punch ready just to make sure it is seated to the flywheel.

You can google it and pick up other tips. This is the way I have done it for well over 40 years its never failed me.

Other tips.

https://www.youtube.com/watch?v=j_sgiTa3gew

I have never used a oven are a grill are a fire pit. They may work if they are capable of getting in the 700 deg range if not you will be disappointed. I have installed a many differential ring gear on a carrier using my gas grill that will get in the 6/7 degree range. Its my preferred tool in that case because its handy and gets a big chunk of steel evenly heated.

Aaron Ford · Jul 17, 2016

Automatic Dishwashers make great parts cleaners, too. You just have to spray it with oil after it comes out or it will rust. Oh, it helps if she's out if town.

Aaron

John B. · Jul 17, 2016

Fastest way to get a ring gear off is to put a cutting wheel on your hand held grinder and cut down a good ways between two gear teeth. Then take a large chisel and big hammer and smack it a couple of times. The ring gear will break at that point.

Trying to heat a ring gear up while on the flywheel takes a while since the flywheel acts as a giant heat sink and absorbs all the heat. To me that's foolish and uses up way too much acetylene. Actually I've never used heat to remove a ring gear off of a flywheel but have seen it done. When I show the guys my way they thanked me every time.

You will have to heat the new one up to slip it over the flywheel but make sure you put it on the correct direction.
Just my 2 censt worth. Good Luck..

old · Jul 17, 2016

The way I do it is this. Put the flywheel in a freezer over night and then put the new ring gear in the oven. Turn it on to 500 degrees and once the oven is up to heat pull the flywheel out and drop the ring gear on. Just be sure you have the flywheel on something flat so when you drop the ring gear on it lays flat. I have found that is the easiest way to do it

NCWayne · Jul 18, 2016

I've done probably a hundred of them, or more.

As others have said, you can often knock the old ring off with a hammer and punch, or cut it off. Regardless of how, the idea is to get it off.

I've never found a need to cool the flywheel. In fact, when your in the field it's not an option. So, unlike others, I begin by simply laying the ring, RIGHT SIDE UP/DOWN on the flywheel. This way I know it's right, and don't have a last second screwup that could cause me to have to cut a new ring, after it's put on the wrong way.

With it lying on the flywheel, simply begin running the torch around it. When it gets hot enough to go on, it will all but drop on by itself. That said, it's still a good idea to have a hammer and punch on hand to I insure it seats all the way, just in case.

Ultimately, it's not all that hard to do, so don't feel intimidated. If you have any other problems, just ask.

Traditional Farmer · Jul 18, 2016

When you put it back if it were me I'd replace the original style starter with the style starter used on Fiat built Long tractors you can get one off ebay for around $130 and they work a lot better than
the originals.I put one on both my 2WD and 4WD 1365.

JOCCO · Jul 18, 2016

RR others covered it but make sure its on correctly as some only go one way!!! next use a rose bud heating torch most of the time does not take much heat.

Dr. Walt · Jul 18, 2016

Aaron:

And you think She isn't going to notice, the first time she does dishes in it, and everything comes out smelling like your Shop. LOL

Buy her a NEW one, and you take the old one out to the Shop.

cuby · Jul 18, 2016

I do the same as Wayne.

Changing ring gear

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Member

Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Member

Similar threads