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Harry Ferguson Tractors Discussion Forum
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cracked block

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monty lewis

03-19-2007 19:18:51




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Well fellows i found that the block is cracked between the cylinders. Looks like someone had put J.B. Weld in there before. Does anyone know how i can fix this problem.




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C.T in Va.

03-21-2007 09:40:31




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 Re: cracked block in reply to monty lewis, 03-19-2007 19:18:51  
Maybe there was a "recall" on these engines?????Ok,just a little humor for a bad situation.Good luck.



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Jerry/MT

03-20-2007 16:31:05




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 Re: cracked block in reply to monty lewis, 03-19-2007 19:18:51  
there are two blocks for sale on ebay. One is a Z120 and the other is a Z129. look under Antique Tractors-Ferguson



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Jim in OH

03-20-2007 20:35:01




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 Re: cracked block in reply to Jerry/MT, 03-20-2007 16:31:05  
I can find the z120, but where is the Z129? Jim



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Jerry/MT

03-20-2007 22:21:34




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 Re: cracked block in reply to Jim in OH, 03-20-2007 20:35:01  
It was there this afternoon with a $199 starting bid as I recall. The picture showed the deck and it had some slight rust on it and the studs were still on it.
The Z120 had just a side view of the block showing a "repair". The Z129 had a bunch of pictures.



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phil(va)

03-20-2007 10:16:53




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 Re: cracked block in reply to monty lewis, 03-19-2007 19:18:51  
Monty, I have a TO-30 for which I had the engine rebuilt, and it turned out to have a crack between the cylinders. The machine shop used the threaded rod approach. This was about 5 yrs ago, near Lynchburg, VA, and it is still doing well and has 45 lbs of oil pressure when hot and no sign of any coolant in the oil or vice versa. Where are you in VA? I am back and forth between Richmond and Appomattox. As a child I used to know a Monty Lewis at Camp Briar Hills. Is that you?

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Jerry/MT

03-21-2007 20:03:56




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 Re: cracked block in reply to phil(va), 03-20-2007 10:16:53  
Respectfully Phil, if your oil pump is putting out 45 psi either your relief valve is stuck, your clearances are too tight, or your gauges is in error. The normal "new" or rebuilt oil pressure range for these Continentals is 25-30 psi. Mine has about 200 hours on a remanufactured engine and hot or cold, lo idle to high idle runs at 27-28 psi on the gauge.

Since you say that it's been runing this way for 5 years, it's probably the gauge or the relief valve but I'd be a bit concerned because if it is the relief valve the flow of oil is greatly reduced at that pressure. There is such a thing as too high an oil pressure and it's indicative of reduced oil flow. More pressure is not necessarily better.

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Monty Lewis

03-20-2007 19:10:16




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 Re: cracked block in reply to phil(va), 03-20-2007 10:16:53  
Phil
I live in Blackstone but work in Richmond. I have not been to Camp Briar Hills must be another Monty.
I have a fellow in Burkville that has pressure tested the head, he`s said that it checked out ok. He`s going to see if it`s warped, will find out tomorrow.
Whats the name of that machine shop, might give them a call to see what the cost would be.
Thanks guys for everyones help!!!!! !!!!!

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phil(va)

03-21-2007 18:23:50




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 Re: cracked block in reply to Monty Lewis, 03-20-2007 19:10:16  
New London Tractor in Lynchburg sent it to a local machine shop near them. I don't have the name of the machine shop, but call New London Tractor and talk with Chuck and ask him who it was. Tell him it was about 5 yrs ago, and they overhauled my TO-30. They no longer do that, concentrating only on their trailer business, but Chuck probably will know.



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Jerry/MT

03-19-2007 19:48:02




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 Re: cracked block in reply to monty lewis, 03-19-2007 19:18:51  
Are you seeing any coolant in the crankcase oil? If so,you can have the block furnaced brazed or trade your block for one that has beeen repairedin that manner. There is another repair method that was used on these engine back i the 50's and 60's. You can drill holes in the block/waterjacket between the cylinders and put tension tods that are threaded at the ends into the holes. Then you put a nut on each side of the twension rod outside the block and tighten them down. You add another nut on each side to lok the first ones. That pulls the cracks together. My original engine had that type of repair done to it and it never leaked. Apparently that was factory recommend fix.

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monty lewis

03-20-2007 02:14:01




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 Re: cracked block in reply to Jerry/MT, 03-19-2007 19:48:02  
Jerry/MT I was told of that repair about drilling the block. I live in Virginia and was wondering where i might could find a block that is in good shape.
To answer your question, yes i had coolant in my oil. It was about an inch over the full line.
Thanks Monty



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Jerry/MT

03-20-2007 12:45:32




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 Re: cracked block in reply to monty lewis, 03-20-2007 02:14:01  
Yeah, it sounds like you have a real coolant leak.
Often times you find used blocks on ebay. Look in the For Sale ads on this site. Don't worry about buying a furnace brazed block as a replacement. They are stress relieved in the brazing process and then align bored back to specs so it's like a new block. They are cost competitive with a plane old used block but in my opinion, have some advantages over a used block. ( They've all ready cracked and been repaired and stress relieved so I think it's unlikely to have that kind of failure again.) I don't know how long you can wait to find a good used block but with patience, you can. I wouldn't be able to wait since my tractor is used regularly on our ranch. I don't know what the tension rod fix costs versus the furnace braze, but if the costs were similar, I'd take the furnace braze.

Good luck whatever you decide.

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mike a. tenn.

03-20-2007 05:07:42




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 Re: cracked block in reply to monty lewis, 03-20-2007 02:14:01  
monty...sure am sorry 'bout your block bein' cracked. i have one the same way. it was repaired somewhere along the line but still leaks some so i have to tear into it again myself.



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