Flywheel Ring Gear

Farmall H, HV & Super H, 300 & 350, 1939-1958
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MiCarl
501 Club
501 Club
Posts: 548
Joined: Sat Dec 16, 2017 8:28 am
Zip Code: 48154
Tractors Owned: 1944 Farmall H
1948 Farmall Cub
1994 Speedex 1631
Circle of Safety: Y
Location: Livonia, MI

Flywheel Ring Gear

Postby MiCarl » Mon Jan 04, 2021 6:58 am

My 1944 H has been chewing up starter clutches so I decided to replace the flywheel ring gear. I was nervous about splitting the tractor but it turned out to be not too bad of a job.

I had seen a video by a woman named Rachel where she heated the new ring gear with a torch. I noticed a little note in the service manual that said it should be heated to 500 - 550 F on a plate or in an oven. That getting it too hot with a torch could ruin the temper.

So into the house I went and put it in the oven at 550. It worked great, the gear dropped right onto the flywheel and I didn't have to beat it with a hammer like in the video.

In hindsight I could have done it on the gas grill which has a thermometer in the hood. But if I had the house wouldn't have that delicious roasted ring gear smell! :big smile:
1944 Farmall H
1948 Farmall Cub
1994 Speedex 1631

Gary Dotson
Team Cub Mentor
Team Cub Mentor
Posts: 4612
Joined: Thu Aug 03, 2006 6:20 am
Zip Code: 43358
Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
52 Cockshutt 20 unrestored
47 Leader "B" (Herckie)
49 Leader "D" (Princess)
49 Leader "D" very rough
48 Leader "D" unrestored
Kubota B6200E
Kubota B6200HST
Kubota B8200HST-D
Circle of Safety: Y
Location: OH West Mansfield

Re: Flywheel Ring Gear

Postby Gary Dotson » Mon Jan 04, 2021 8:09 am

The gas grill would have worked nicely. Way back when, working in the garage, we would heat gently, moving the torch around the full circle of the gear and just drop it on. We really didn't get the gear very hot, it doesn't take much. It probably took less than 5 min.

Jim Becker
Team Cub
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Posts: 15973
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Zip Code: 55319
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Location: MN

Re: Flywheel Ring Gear

Postby Jim Becker » Mon Jan 04, 2021 11:31 am

MiCarl wrote:. . . I had seen a video by a woman named Rachel where she heated the new ring gear with a torch. I noticed a little note in the service manual that said it should be heated to 500 - 550 F on a plate or in an oven. That getting it too hot with a torch could ruin the temper. . . .

Rule of thumb: When a Rachel video says something, and another source says something else, go with the something else.

Eugene
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Location: Mo. Linn

Re: Flywheel Ring Gear

Postby Eugene » Mon Jan 04, 2021 8:55 pm

I have an excuse. CRS.


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