B-ring gear slipping
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=134742
Printed Date: 21 Aug 2025 at 12:24am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: B-ring gear slipping
Posted By: Tom Elder
Subject: B-ring gear slipping
Date Posted: 06 Feb 2017 at 5:24pm
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Got my overhaul back together,went to start it ,and the starter band slipped on the flywheel instead of turning it much.I had noticed it had a ringing sound in one spot as if it wasn't seated good. Got it back apart ,took it to my neighbor the pro auto man,and it pops on and off with very little persuasion ,no heating or hard hitting necessary.Needless to say i ordered a new one from a different supplier.My neighbor heated the old one with a torch to put it on,could that have caused it? When i received the bad ring,i noticed it appeared to have been on a tractor grease and oil wise,but the teeth appeared to have not been touched. When i get the new one ,should i A. put it in the kitchen oven B.heat it up on the wood burning stove or C. let the neighbor put it on with the torch again.- Thanks ahead of time Tom PS the good news is i now I know how to rig and split the tractor,with oil pan and valve cover in place  ------------- 2 1949bs,one with belly mower one with side sickle bar |
Replies:
Posted By: Stan R
Date Posted: 06 Feb 2017 at 5:26pm
| C |
Posted By: WF owner
Date Posted: 06 Feb 2017 at 6:02pm
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Heating (evenly) with a torch is the way I was taught to install them. It sounds like someone returned it as defective and the supplier sold it to you. |
Posted By: B26240
Date Posted: 06 Feb 2017 at 6:20pm
| I agree with C also it doesn't need to be very hot to fall right on. Temp stick from welding supply about 2 or 3 hundred degrees. |
Posted By: SteveM C/IL
Date Posted: 06 Feb 2017 at 7:38pm
| Yeah,heating with torch don't mean "cherry red"! |
Posted By: Orange Blood
Date Posted: 06 Feb 2017 at 7:43pm
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Most wives don't like this, but stick it in the oven, on your way out the door to do chores in the morning, while your flywheel sits on the steps outside overnight. It will slip right on. Heat to about 350° F this time of year. Summertime when the flywheel doesn't get as cold, you will need to go a little hotter, say 450°F. Bake times are in the 45-60 mins. I like to make sure I put mine in the oven, in the correct orientation "UP" so all I have to do is keep it "upright" with the hot pads, and drop it right onto the flywheel. Have a hammer laying there also, so you can tap it home, it shouldn't need much, but be ready, a trip to the shop and back, and it will be stuck. ------------- Still in use: HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060 Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7 |
Posted By: Tom Elder
Date Posted: 06 Feb 2017 at 10:04pm
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Thanks one and all
------------- 2 1949bs,one with belly mower one with side sickle bar |
Posted By: CrestonM
Date Posted: 06 Feb 2017 at 10:20pm
| I've done method "C" with good results. |
Posted By: Hubert (Ga)engine7
Date Posted: 07 Feb 2017 at 5:16pm
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Whichever method it needs even heating. I like the oven method but if you are not Boss you get in trouble using the oven. Torch works fine, just don't heat it cherry red. Sounds like you ma have gotten a bad ring. ------------- Just an old country boy saved by the grace of God. |
Posted By: JoeO(CMO)
Date Posted: 07 Feb 2017 at 8:31pm
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I do the "A" ------------- |
Posted By: Tom Elder
Date Posted: 07 Feb 2017 at 10:59pm
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thanks men
------------- 2 1949bs,one with belly mower one with side sickle bar |
Posted By: Dick L
Date Posted: 08 Feb 2017 at 5:44am
My Uncle owned an Oliver dealership and over the parts counter he had a sign that said, (WATCH THE MAN THAT SAYS HE IS BOSS AT HOME BECAUSE HE WILL LIE TO YOU ABOUT OTHER THINGS AS WELL)
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Hubert (Ga)engine7 wrote:Posted By: Lonn
Date Posted: 08 Feb 2017 at 7:11am
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I've always heated with a torch. In school the teacher taught us to use a temp stick or solder but even solder can be had with different temps. Another trick I learned from my old shop foreman was to heat just until I saw a bit of smoke coming off the gear. I think I've installed only one using the solder method and all the rest just by heating slowly until I see smoke and have never once had a failure. Go round and round with the torch quickly so you don't overheat any one spot. Slip on flywheel and give it a few taps with a brass punch (I've used a regular punch carefully when I couldn't find my brass one) a couple minutes later to seat it because it shrinks away from the seated area as it cools. ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: jaybmiller
Date Posted: 08 Feb 2017 at 9:16am
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Yeah...heat in the oven...hahaha You kinda forgot about the 'cutting oil' residue on the ring gear..man NOTHING will stink up the WHOLE house faster(where you USED to live) ! I did the neighbour thing...and I get to sleep in MY bed still..... EVEN heating is the important and to quickly mount it...steel cools fast ! Jay ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: Alberta Phil
Date Posted: 08 Feb 2017 at 9:51am
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I use the BBQ with the lid on the back deck for heating things that might stink up the house. Works well! I don't have a wife to contend with here, but the dog doesn't like the stink!! LOL |
Posted By: Dick L
Date Posted: 08 Feb 2017 at 10:17am
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I guess I'm lazy. I have changed or flipped dozens of ring gears. I lay the ring gear up in place and start around the gear with a map Burns O Matic torch. I keep circling it slow until I can take a pair of pliers and position it to fall down in place. I tap around it until I know it is down and go do something else while it cools.
It really does not take all that much heat to expand them. Of course if you heat it away and have to carry it to the flywheel it cools in its transportation. |
Posted By: wbecker
Date Posted: 08 Feb 2017 at 11:48am
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A. Orange Blood does it the correct way. That's how it's done on Lycoming aircraft engines too. Bill B ------------- Allis B, IB, Low B, G, D10, JD M, 8KCAB, C152 |
Posted By: Dick L
Date Posted: 08 Feb 2017 at 5:32pm
| A warning to all you young guys trying to install a ring gear on a flywheel. Never do it my lazy incorrect way or all you babies will be born naked. I know cause all mine were. |
Posted By: WF owner
Date Posted: 09 Feb 2017 at 5:51am
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Mine too...and crying! |