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broken engine ear
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- John *.?-!.* cub owner
- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
broken engine ear
I know I have not seen as many cubs as a lot of members have, but in the years I have dealt with them i have seen 3 with the right front ear broken off, 2 of which were leaking oil at the ear. All 3 of them were 47 through first quarter 48 models, and 2 were casting number 251341R1, I do not know the casting number of the 3rd one. I was curious if anyone else has kept track of the years and casting numbers.
Also, as I noted in a posting last summer, the 251341R1 castings I came across apparently used an oddball valve spring (not a roto cap spring). A standard valve spring is too tall to install the keepers, intake and exhaust both, and as I mentioned they do not have roto caps.
Also, as I noted in a posting last summer, the 251341R1 castings I came across apparently used an oddball valve spring (not a roto cap spring). A standard valve spring is too tall to install the keepers, intake and exhaust both, and as I mentioned they do not have roto caps.
If you are not part of the solution,
you are part of the problem!!!
you are part of the problem!!!
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- 10+ Years
- Posts: 5212
- Joined: Tue Jan 12, 2010 2:08 pm
- Zip Code: 12514
- Circle of Safety: Y
Re: broken engine ear
they made the castings thicker in that area around 50 ? or so, they knew it was problem
Tim
Tim
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- 10+ Years
- Posts: 1573
- Joined: Sun Feb 02, 2003 11:01 pm
- Zip Code: 36310
- Tractors Owned: 1975 IH cub,1948 farmall cub,1979 international 3200 skid steer and a 1974 John deere 350B dozer.
- Location: Abbeville Alabama
Re: broken engine ear
I have seen hundreds of cubs over the years and have worked on many. I have had atleast 20 or so that the right ear was either cracked or broken off. I have has atleast two that the ears were broken off both sides. A few had loaders on them at one time and some were justs abused. I had one come here to be repaired. It had cultivators attached. The owner was cultivating in second gear as fast as it would go. HIt a rock that stopped it dead in its tracks.It was a late 50's model. I was able to repair many of these broken ears. I learned how many years ago by talking to the local owner of a welding supply store. I purchased the welding rod and followed his instructions. I welded a old junk block with a broken ear for practice. He told me that if done properly the weld would be stronger than the original. I welded it as directed. let cool. then propmtly took a big sledge to try to brake the weld. The weld did not brake.
Collector of Farmall cubs and cub cadets.Injoy helping people keep their cubs running. Years of experipnce.
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- Cub Pro
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- Location: LA, Gonzales
Re: broken engine ear
At one point when I was looking at a lot of cubs in a years time. It was not uncommon to find the broken ( and repaired ) ear on a 47 and 48, but seldom on anything newer. As Tim (TST) said the ear was made thicker on the later years. Most of the repair welds did what they were intended to do and a few cracked in or next to the weld. I would not say that a welded ear is as god as new , but repaired by a quality weld they do seem to hold together.
- twotone
- 10+ Years
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- Joined: Sat May 14, 2011 6:09 pm
- Zip Code: 15132
- Tractors Owned: 53 F Cub
73 F Cub
53 Super A With Snow/Grader Blade
193 Plow With Colter And Jointer
144 Cultivators
22 Mower - Circle of Safety: Y
- Location: Versailles,Pa.
Re: broken engine ear
My 53 has a welded ear and has been worked pretty hard with no problems.
Know Your Cub, And Your Cub Will Know You.
Tom
Tom
- raystractors
- 10+ Years
- Posts: 363
- Joined: Wed Aug 31, 2011 11:55 am
- Zip Code: 37058
- Tractors Owned: 1950 Cub, 1952 Cub, 1970 Cub, 1975 Cub, 1953 Cub, 1939 A, 1948 super A, 1952 super A, 1950 C demonstrator, 1952 Super C, 1949 H, 1956 farmall 300, 1957 international 350, 1963 Massey Ferguson 35
- Circle of Safety: Y
- Location: TN Dover
Re: broken engine ear
I have two that have the broken ear. One of them is a 1950, and the other is a 1968 lowboy. Both of them were broken when they come to me, so I can't speak to the cause.
- Bezirk
- 10+ Years
- Posts: 2010
- Joined: Fri Mar 27, 2009 10:07 pm
- Zip Code: 22843
- Tractors Owned: Farmall Cub 1949, Oliver OC3 crawler 1951, Ford 8 N 1948, Oliver 77 Row Crop 1953, JohnDeere, La, 1941, John Deere 4115/w loader, 2004, John Deere stationary power unit LUC, Farmall M, 1946, Oliver 77 Row crop w/ loader
- Circle of Safety: Y
Re: broken engine ear
My 49 has the broken ear, not sure of casting number.
Berlin
Berlin
I started out with nothing and now I only have half of that left !
- Tezell
- 10+ Years
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49 Cub Denim Springs
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"Paw Paw"71 Cub Fast
Hitch
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"Ugly" 75 Cub
76 Cub Val
Mr. Kirkland" 77 Red Cub
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76 - 185 Cub Lo Boy
John Deere 2003 - 5320
Kubota 7060
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TO20 Ferguson - Circle of Safety: Y
- Location: Jakin Georgia
- Contact:
Re: broken engine ear
I purchased a 48 a couple of years ago to sell and it had a broken ear also.
That is the only one I have ever see in person.
That is the only one I have ever see in person.
"I ain't believing this!"
- Boss Hog
- Cub Pro
- Posts: 10290
- Joined: Mon Oct 24, 2005 8:35 pm
- Zip Code: 23962
- eBay ID: dmb2613
- Circle of Safety: Y
- Location: VA. Randolph
Re: broken engine ear
I have scrapped 30 or more with a cracked, broken or welded ear. most all pre 1960.
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg
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- 10+ Years
- Posts: 484
- Joined: Sun Aug 05, 2012 7:01 am
- Zip Code: 00000
- Tractors Owned: 1955 Cub Fast Hitch
sickle bar
land plow
harrows
snow plow
manure spreader
hayrake, rope pull
variety of cultivators
Wagner WM-1 bucket loader
rear carrier -- homemade - Location: Berkshire hills
Re: broken engine ear
Isn't this why Bezirk made up those engine braces? I've got a set on my '55 Cub. As someone said: Cheap insurance.
- Bezirk
- 10+ Years
- Posts: 2010
- Joined: Fri Mar 27, 2009 10:07 pm
- Zip Code: 22843
- Tractors Owned: Farmall Cub 1949, Oliver OC3 crawler 1951, Ford 8 N 1948, Oliver 77 Row Crop 1953, JohnDeere, La, 1941, John Deere 4115/w loader, 2004, John Deere stationary power unit LUC, Farmall M, 1946, Oliver 77 Row crop w/ loader
- Circle of Safety: Y
Re: broken engine ear
Yes that is the reason I had a friend design the braces , I discovered that My 49 had a broken ear. The braces provide protection from breaking and if already broken they help distribute the load between the bolster and the the flywheel casing .
Berlin
Berlin
I started out with nothing and now I only have half of that left !
- Bezirk
- 10+ Years
- Posts: 2010
- Joined: Fri Mar 27, 2009 10:07 pm
- Zip Code: 22843
- Tractors Owned: Farmall Cub 1949, Oliver OC3 crawler 1951, Ford 8 N 1948, Oliver 77 Row Crop 1953, JohnDeere, La, 1941, John Deere 4115/w loader, 2004, John Deere stationary power unit LUC, Farmall M, 1946, Oliver 77 Row crop w/ loader
- Circle of Safety: Y
Re: broken engine ear
Yes that is the reason I had a friend design the braces , I discovered that My 49 had a broken ear. The braces provide protection from breaking and if already broken they help distribute the load between the bolster and the the flywheel casing .
Berlin
Berlin
I started out with nothing and now I only have half of that left !
-
- 10+ Years
- Posts: 15
- Joined: Fri Feb 14, 2014 10:51 am
- Zip Code: 04957
Re: broken engine ear
John,
My '48, serial # 24264 Has a repaired right engine ear.
Nick
My '48, serial # 24264 Has a repaired right engine ear.
Nick
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- 10+ Years
- Posts: 2929
- Joined: Sun Apr 19, 2009 9:51 pm
- Zip Code: 63664
- Location: MO, Potosi
Re: broken engine ear
A thought on the occurence of broken ears; (thanks to gitractorman's Cub spreadsheet)
120,949 Cubs were made in the years 1947-50.
132,202 Cubs were made in the years 1951-79. (157,695 if including Lo Boys)
Roughly speaking an equal number produced in a four year span as in the following 28 years. If broken ears happened at specific rate, say 1 in 500, you would find more per year in the first four years simply because there were more ears made those years. Using my theoretical 1 in 500 number: 1948 production of 46,482 would give us 92 broken ears. Picking another year, 1963 production was 3,556 (including Lo Boys) would give us 7 broken ears.
Add to the fact that you are numerically more likely to see a broken ear on one of the first four years that those are also the ones with the weaker ear and are easier to break. That theoretical 1 in 500 could go to 1 in 250, and that 92 number becomes 185, versus the 7 for 1963.
120,949 Cubs were made in the years 1947-50.
132,202 Cubs were made in the years 1951-79. (157,695 if including Lo Boys)
Roughly speaking an equal number produced in a four year span as in the following 28 years. If broken ears happened at specific rate, say 1 in 500, you would find more per year in the first four years simply because there were more ears made those years. Using my theoretical 1 in 500 number: 1948 production of 46,482 would give us 92 broken ears. Picking another year, 1963 production was 3,556 (including Lo Boys) would give us 7 broken ears.
Add to the fact that you are numerically more likely to see a broken ear on one of the first four years that those are also the ones with the weaker ear and are easier to break. That theoretical 1 in 500 could go to 1 in 250, and that 92 number becomes 185, versus the 7 for 1963.
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- 10+ Years
- Posts: 43
- Joined: Thu Dec 30, 2010 11:35 am
- Zip Code: 96021
- Tractors Owned: 2008 Mahindra 5525, 1964 MF-135 diesel, 1951 Farmall Super A, 1951 Minneapolis Moline BF, 1945 Oliver 60 Row Crop, 1949 JD B widefront
- Location: Northern CA Tehama County
Re: broken engine ear
My 1948 Cub had a broken lower right ear on the engine block. Completely broken off the block.
Repaired it using stainless steel filler rod and my Hobart stick welder (Super Missile Rod, 1/8" rod, DC+, 90 amps). It took a while because I had to use the short bead, backstep method and allow the parts to cool to 100F or so before welding the next bead.
I fabricated the standard ear braces that have been described numerous times in this forum and installed them for added strengthening in this weak part of the Cub block.
Repaired it using stainless steel filler rod and my Hobart stick welder (Super Missile Rod, 1/8" rod, DC+, 90 amps). It took a while because I had to use the short bead, backstep method and allow the parts to cool to 100F or so before welding the next bead.
I fabricated the standard ear braces that have been described numerous times in this forum and installed them for added strengthening in this weak part of the Cub block.
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