Flywheel side by side comparision

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staninlowerAL
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Joined: Fri Oct 29, 2010 11:34 pm
Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1)'52, (1)'57 IH Cub LoBoy w/FH, (1)'72 154 Number Series Loboy, '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76 Yanmar 1500, Sears Surburban's, MTD's, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Flywheel side by side comparision

Postby staninlowerAL » Tue Mar 07, 2017 7:13 am

Anyone have a Cub flyweel/ring gear and a 154 flywheel that can compare or measure to determine if the Cub ring gear will fit on the 154 flywheel. Or maybe a 184 ring gear fit a 154 flywheel? Is the number of teeth on the 184/154 ring gear the same? I'd like to add the ring gear on my 154 so I can use a Cub starter instead of the 154 starter/generator? Anyone done this before? Does it change the drive and pto mechanicals in any way? I posted on this on the Number Series forum and got no response. Thanks, Stan

ScottyD'sdad
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Tractors Owned: 6"F" cubs
5 lo-boys
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1 IH 100 manure spreader
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Re: Flywheel side by side comparision

Postby ScottyD'sdad » Tue Mar 07, 2017 8:40 am

A cub flywheel will bolt right on to a 154 crankshaft.
Ed
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staninlowerAL
5+ Years
5+ Years
Posts: 3520
Joined: Fri Oct 29, 2010 11:34 pm
Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1)'52, (1)'57 IH Cub LoBoy w/FH, (1)'72 154 Number Series Loboy, '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76 Yanmar 1500, Sears Surburban's, MTD's, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Re: Flywheel side by side comparision

Postby staninlowerAL » Tue Mar 07, 2017 9:58 am

ScottyD'sdad wrote:A cub flywheel will bolt right on to a 154 crankshaft. Ed
TKS ED. I already have a spare flywheel/ring gear and starter from a 49 FCub parts tractor so seems like all I need to do is swap them and rewire for the starter. Then I plan to change the starter/gen for a single wire alternator and be back in business. Thanks for the info. Stan
EDIT: I checked the PN for ring gear and it call out 251 270 R2 ring gear 84T, all except 154 and 185 LoBoy (which would have not had a ring gear). The PN for flywheel/ring gear 251 271 R12 combination says all except 154 above 277103 and 185 LoBoy so that leads me to believe the flywheel is the same for all except as noted. There might be some issue with the reach of the starter drive. There are 2 part numbers for the starter cranking motor, this might be the change from 6v to 12v, I've got to check it out.
Last edited by staninlowerAL on Tue Mar 07, 2017 11:34 am, edited 1 time in total.

ScottyD'sdad
Cub Pro
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Posts: 6676
Joined: Thu Aug 31, 2006 7:00 pm
Zip Code: 02769
Tractors Owned: 6"F" cubs
5 lo-boys
1 154
1 184
1 IH444
1 Oliver OC3 crawler
1 AC D10
1 IH 100 manure spreader
1 IH model B corn grinder
3 power units
cub demonstrator
Circle of Safety: Y
Location: Ma. Rehoboth

Re: Flywheel side by side comparision

Postby ScottyD'sdad » Tue Mar 07, 2017 11:30 am

Is the crankshaft in the 154 engine, drilled for the pilot bushing, for the cub driveshaft. Some were not.
Ed
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staninlowerAL
5+ Years
5+ Years
Posts: 3520
Joined: Fri Oct 29, 2010 11:34 pm
Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1)'52, (1)'57 IH Cub LoBoy w/FH, (1)'72 154 Number Series Loboy, '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76 Yanmar 1500, Sears Surburban's, MTD's, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Re: Flywheel side by side comparision

Postby staninlowerAL » Tue Mar 07, 2017 11:37 am

ScottyD'sdad wrote:Is the crankshaft in the 154 engine, drilled for the pilot bushing, for the cub driveshaft. Some were not. Ed
I don't know yet but I don't think this is an issue since I don't plan to change anything in the drive shaft/flywheel other than add the ring gear. Stan

ScottyD'sdad
Cub Pro
Cub Pro
Posts: 6676
Joined: Thu Aug 31, 2006 7:00 pm
Zip Code: 02769
Tractors Owned: 6"F" cubs
5 lo-boys
1 154
1 184
1 IH444
1 Oliver OC3 crawler
1 AC D10
1 IH 100 manure spreader
1 IH model B corn grinder
3 power units
cub demonstrator
Circle of Safety: Y
Location: Ma. Rehoboth

Re: Flywheel side by side comparision

Postby ScottyD'sdad » Tue Mar 07, 2017 3:47 pm

Oh, just converting a 154 to cub starter. I thought the enging was going into an F cub.
Ed
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Member of Chapter 18, and National
Circle of Safety

staninlowerAL
5+ Years
5+ Years
Posts: 3520
Joined: Fri Oct 29, 2010 11:34 pm
Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1)'52, (1)'57 IH Cub LoBoy w/FH, (1)'72 154 Number Series Loboy, '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76 Yanmar 1500, Sears Surburban's, MTD's, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Re: Flywheel side by side comparision

Postby staninlowerAL » Tue Mar 07, 2017 6:03 pm

I've done some checking on the starter, seems like there are 5 different part numbers. Haven't unscrambled all of it yet but Hamiltion Bob said the 184 starter would bolt right up. Problem is there are very few out there and it's no longer available as a new part according to Messicks. The replacement part for a 184 starter is to convert to a starter/generator same as 154 and 185. Still working out the details. Thanks.

Dan1959
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Re: Flywheel side by side comparision

Postby Dan1959 » Sun Mar 26, 2017 1:22 pm

Hi. I have a 1948 cub and just relaced the clutch , main shaft, rebuiult tranny and still cant get the main shaft to stop spinning, even in neutral.Is it possible that when the shop resurfaced the fly wheel, they didnt have the specs and turned to much material. All my presets on the TBO and pressure plate fingers are spot on. I grind the gears and the shaft spins in 1st gear as well even with pedal all the way down............Thanks.Dan.

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Urbish
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Re: Flywheel side by side comparision

Postby Urbish » Sun Mar 26, 2017 3:40 pm

Welcome to the forum, Dan. You probably should have started your own post. Regardless, I'll answer here. I think you're the 3rd or 4th person in the past couple of weeks to post on this issue. Did you replace the bearing in the flywheel as part of your repairs? If so, did you test-fit the transmission main shaft in the bearing before putting it all back together? If the pressure plate fingers are properly adjusted and the trans guts are still whirling with the clutch pedal fully pushed down, it's likely that the bronze bearing in your flywheel compressed upon installation and is 'gripping' the shaft, causing it to turn whether or not the clutch is engaged.


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