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Wisconsin Cam Thrust Spring & Cracked Block Question.


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#1 Texas Deere and Horse OFFLINE  

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Posted August 28, 2014 - 03:15 PM

I had to take the side cover off the TRA-10D that I'm getting ready for my Bush Hog to replace the Crankshaft seal. I was very careful taking it apart because I had seen that there was a Camshaft Thrust Spring in the side cover of end of the Cam. Mine didn't have one in it, so do I not worry about it and leave it out or do I find one and install it?

 

Wis TR 10 D Side cover.jpg

 

 

 

 

 

Edited***

 

I just got the block cleaned up and found that the bottom of the block is cracked almost all the way around the base of the block. I think I can open the crack up with a die grinder and JB Weld the block back up to seal it up.


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#2 LilysDad OFFLINE  

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Posted August 28, 2014 - 03:39 PM

Do you think someone has had it apart before or not?



#3 Texas Deere and Horse OFFLINE  

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Posted August 28, 2014 - 05:22 PM

Do you think someone has had it apart before or not?

 

Yes, I do. I think it has thrown a rod at one time because I just found these cracks in the block while I was cleaning up the old gasket off the block.

 

IMG_20140828_155045_324.jpg IMG_20140828_155054_000.jpg IMG_20140828_155100_973.jpg


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#4 LilysDad OFFLINE  

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Posted August 28, 2014 - 07:55 PM

Then, I would assume they left it out by mistake and replace it.


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#5 Texas Deere and Horse OFFLINE  

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Posted August 28, 2014 - 08:15 PM

I think your right, it needs to be in there.


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#6 olcowhand ONLINE  

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Posted August 28, 2014 - 08:26 PM

Wow, that's a heck of a crack!


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#7 Bolens 1000 OFFLINE  

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Posted August 28, 2014 - 08:29 PM

First time I've seen one of these blocks crack!

 

There should be a ball and spring that goes in that cam hole... someone has definitely been in there.

 

Let me know if you need parts help, I got most stuff here plus gaskets and seals.


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#8 Texas Deere and Horse OFFLINE  

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Posted August 28, 2014 - 08:38 PM

Wow, that's a heck of a crack!

 

I've never seen a block broke like that on the bottom either. The engine sure did run good and had no strange noises before I started going over it to drop in the Original D4-10. I think it will be OK to seal up and use. The damage is only between the bolt bosses where the engine bolts down.

 

First time I've seen one of these blocks crack!

 

There should be a ball and spring that goes in that cam hole... someone has definitely been in there.

 

Let me know if you need parts help, I got most stuff here plus gaskets and seals.

 

I don't have the spring or ball without tearing another engine down. I'll send you a PM..


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#9 boyscout862 OFFLINE  

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Posted August 29, 2014 - 09:21 AM

That is kind of scary. Good Luck, Rick

#10 EricFromPa OFFLINE  

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Posted August 29, 2014 - 01:03 PM

My uncle picked up an old Tecumseh HH80 at a farm auction a few years ago that was cracked like that.My best guess is that water got in it and froze then melted and leaked out the crack.There was no sign of any other damage and the block was super clean inside.

 

My uncle gave it a small whack with a Ball peen and removed the bottom and took his grinder and cut a fairly deep groove where the crack was and popped the bottom back on,Brazed it back together and ground it smooth on the bottom and where the gasket mates.

 

He put it on an old Myers water pump to draw water for the couple of Beef cow.Doesn't get run any higher than 1/4 throttle but it works good.


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#11 Texas Deere and Horse OFFLINE  

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Posted August 29, 2014 - 01:44 PM

My uncle picked up an old Tecumseh HH80 at a farm auction a few years ago that was cracked like that.My best guess is that water got in it and froze then melted and leaked out the crack.There was no sign of any other damage and the block was super clean inside.

 

My uncle gave it a small whack with a Ball peen and removed the bottom and took his grinder and cut a fairly deep groove where the crack was and popped the bottom back on,Brazed it back together and ground it smooth on the bottom and where the gasket mates.

 

He put it on an old Myers water pump to draw water for the couple of Beef cow.Doesn't get run any higher than 1/4 throttle but it works good.

 

Eric, you could be right. This motor had water in the bottom of it when I got it and it came from up in MO so it could have been frozen a time of two. I'm going to grind out a small groove and JB Weld it, I've had good luck repairing blocks that way before.


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#12 MH81 ONLINE  

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Posted August 30, 2014 - 12:01 AM

Wow, surprise!

Glad you caught it, a mystery leak on a restored tractor would drive a guy nuts.
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#13 Bill 76 OFFLINE  

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Posted August 31, 2014 - 02:05 AM

You might want to drill a small hole at the end of the crack.That will keep the crack from growing,then JB her up.



#14 Texas Deere and Horse OFFLINE  

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Posted September 19, 2014 - 09:52 PM

I got the chance today at lunch to repair my cracked block. I drilled 1/16" holes at the end of each crack and ground them out. I then pre-heated the block and when it was hot enough I brazed it all up. I peened the welds with a peening hammer until it cooled enough not to crack again from shrinking. I cleaned the welds up with a grinder and I think it come out nicely. I did have the side cover on the block to hold it true while I was Brazing it.  Forgot to take photos during the fix, but I did get one after I was finished.

 

 

IMG_20140919_145341_584.jpg


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#15 Bruce Dorsi OFFLINE  

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Posted September 20, 2014 - 06:30 AM

That looks like a proper repair !!

 

A dab of grease will hold the steel ball in the recess of the side cover during re-assembly.  .....The spring has enough length to stay put in the camshaft, but the ball often falls out of the side cover.


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