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Cracked Block

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Joshua Mitchell
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Cracked Block

Postby Joshua Mitchell » Sat Mar 13, 2021 12:50 pm

Well I finally got my little red mistress all painted and assembled. Went completely through everything and she's a beautiful piece of machinery. Bump the rod and she fires even before the starter completely rotates. Took her out on the maiden run and all functions perfectly. Pulled back in shop and noticed a bit of oil so I started checking gaskets and bolts then the hooker showed me the Crack running from oil pan flange up behind coolant nipple almost to governor housing. Had welder come check it out and now the disassembly starts.

As this is structural section have any of you guys had issues with this and the long term strength.

Just looking for opinions and experiences

TIA

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Cubfriend
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Re: Cracked Block

Postby Cubfriend » Sat Mar 13, 2021 10:22 pm

There is a gentleman on the forum that makes and sells block stiffeners (struts). I believe his handle is Bezirk
Frank

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Glen
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Re: Cracked Block

Postby Glen » Sun Mar 14, 2021 1:14 am

Hi,
Some people on here have said they had trouble with the engine block cracking on earlier Cubs, at the right front mounting.
Some people replace the block with one that is not cracked.
JP Tractor Salvage at the bottom of the page probably has a block.

Below is a pic of another cracked one. :)
Attachments
Cub block 14.jpg
Cub block 14.jpg (51.51 KiB) Viewed 500 times

CharlieK
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Re: Cracked Block

Postby CharlieK » Sun Mar 14, 2021 10:03 am

I don't see a crack
get er done; life is good

Bob McCarty
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Re: Cracked Block

Postby Bob McCarty » Sun Mar 14, 2021 10:28 am

The crack is to the left of the empty bolt hole, and under the closest hose clamp. It looks like a pretty smooth welding job.
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Glen
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Re: Cracked Block

Postby Glen » Sun Mar 14, 2021 8:18 pm

Hi,
The crack is vertical in the corner where the blackish oil is.
It is an open crack, not welded, I think.
The man that posted the pic said it was cracked, I think.
It is hard to see, probably easier on a computer with a bigger screen than a phone.
Last edited by Glen on Mon Mar 15, 2021 2:45 am, edited 1 time in total.

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Barnyard
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Re: Cracked Block

Postby Barnyard » Sun Mar 14, 2021 9:32 pm

I'm not sure that was ever cracked. If it was, it is an awful good weld.

Cub crack.jpg
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Re: Cracked Block

Postby SamsFarm » Sun Mar 14, 2021 11:50 pm

It is covered in paint.

And there is a good chance the weld could have been dressed up by grinding!
1968 Cub Fast-Hitch

User avatar
Joshua Mitchell
Posts: 25
Joined: Mon Dec 28, 2020 2:22 pm
Zip Code: 77523
Tractors Owned: 1952 Cub (LITTLE RED MISTRESS)
1948 Cub
1948 M
2 additional M's yr unknown
1 - A yr unknown
1 - B yr unknown

Re: Cracked Block

Postby Joshua Mitchell » Mon Mar 15, 2021 5:24 pm

I have found that this is a common issue. I have torn down the front end AGAIN and picked up some NI rods today. I will be welding it tomorrow evening and then building a strut support for it once reassembled. I would like to keep it all together as original if possible.

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Glen
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Joined: Mon Mar 19, 2012 7:33 pm
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Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
Circle of Safety: Y
Location: Wa.

Re: Cracked Block

Postby Glen » Mon Mar 15, 2021 6:45 pm

Hi,
The pic I posted above is from Rockfarmer's post about restoring his Cub.

Below is his post, the pic is on page 4, mostly down the page. His next post after the pic says he was going to replace the block.
He doesn't say if it was cracked in the corner.
If it wasn't cracked, that is where they usually crack.

His post has many pages, and is good reading, if you are restoring a Cub. :)

viewtopic.php?f=1&t=97865


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