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Opps, Broke A Crankshaft


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15 replies to this topic

#1 farmerall OFFLINE  

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Posted January 08, 2014 - 08:38 PM

Today I was trying to pop the flywheel off a 14 Kohler and broke it. I was using a hammer and a couple screwdrivers like I have done many times before and the end of the crank snapped off. Well I guess I have another engine to add to the collection under the workbench.

 

100_1981_zpsaa54d781.jpg


Edited by farmerall, January 08, 2014 - 09:24 PM.

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#2 IamSherwood OFFLINE  

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Posted January 08, 2014 - 08:58 PM

Opps


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#3 MH81 ONLINE  

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Posted January 08, 2014 - 09:01 PM

Hmm, never seen one do that. Must've been either a very off-sides hit or previously weakened and you just finished it off.

Sorry about your luck.
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#4 js5020 OFFLINE  

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Posted January 08, 2014 - 09:02 PM

BUMMER
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#5 trowel OFFLINE  

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Posted January 08, 2014 - 09:02 PM

CRAP !


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#6 farmerall OFFLINE  

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Posted January 08, 2014 - 09:09 PM

 Must've been either a very off-sides hit or previously weakened and you just finished it off.

Sorry about your luck.

 

My guess is all of the above. I'm not to worried about it, we will just have to find another engine for my brothers Cub Cadet project.



#7 Jlaws OFFLINE  

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Posted January 08, 2014 - 09:12 PM

I've heard of people putting the crank in a lathe , machining the end flat where it broke , drilling and tapping the end of the crank and installing a bolt with the cupped washer .

Just a thought .

 

 

Heres a thread on what I'm talking about ...

 

http://www.cubcadetc...ken crank#p6300


Edited by Jlaws, January 08, 2014 - 09:22 PM.

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#8 superspeedex OFFLINE  

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Posted January 08, 2014 - 09:14 PM

A good machine shop could fix ya up


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#9 farmerall OFFLINE  

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Posted January 08, 2014 - 09:15 PM

I've heard of people putting the crank in a lathe , machining the end flat where it broke , drilling and tapping the end of the crank and installing a bolt .

Just a thought .

 

Thanks for the suggestion, I will keep that in mind. We were planning on swapping the flywheel and bearing plate with one from a K301 so the engine would fit in my brothers 104. We will either fix this one or find another some day.



#10 LTD OFFLINE  

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Posted January 08, 2014 - 09:29 PM

That was me :wallbanging:  Did the exact same thing you did. Only cost $30 to repair. Engine is still going as far as I know.


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#11 Jlaws OFFLINE  

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Posted January 08, 2014 - 09:37 PM

Hey Levi , small world isn't it .  I've never done it myself , but if the crank is in good shape otherwise , I wouldn't hesitate doing it .



#12 Texas Deere and Horse OFFLINE  

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Posted January 08, 2014 - 09:41 PM

Matt, Sorry to hear that, I would use the above way described to repair and fix the crank..


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#13 Justin2655 OFFLINE  

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Posted January 08, 2014 - 10:17 PM

I work in a repair machine shop and yes you can fix the crank. Is what we do is face it off, drill a hole, cut a new peice of round stock, stub that peice ( V out both the crank and the new peice of stock) and slide them together (slip fit). Then weld them together and machine down to size
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#14 ckjakline OFFLINE  

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Posted January 09, 2014 - 03:57 AM

You should invest in a steering wheel puller.They work great for pulling fly wheels.They are right around $30 at sears.



#15 olcowhand ONLINE  

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Posted January 09, 2014 - 10:04 AM

Mt Lincoln Weldanpower with a K241 did the same, but I was using a puller.  I taper ground the threaded portion & welded it back on with nickel rod.  Still on 0ver 10 years later.  But would be best maybe for you to drill & tap for a 7/16 fine thread bolt.






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