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  1. #1
    Bronze Member
    Join Date
    Nov 2012
    Posts
    79
    Location
    Lavonia, GA
    Tractor
    Yanmar 1700

    Default The kiss of Death? YM1700

    Oh boy where to start.
    I did not notice nor did my diesel mechanic friend a weld on the block when we originally inspected the tractor. I purchased the tractor and brought it home. I have worked out some bugs. I noticed the weld but have never seen any coolant leaking at that spot, or any where else for that matter. Friday I got my new radiator cap from Hoye. I removed the old motor craft cap rated at 16 psi and put on the 13 psi cap. Started the tractor and let it idle for 30 minutes. There it was- coolant running down the block. Not really a heavy flow, but bad enough to give great concern. If I constantly monitor the fluid level is it ok to run the tractor. Can the block be repaired? My father in law suggested prepping the block with a solvent remover and heavy grit sand paper, then using high temp JB weld pushed in and then built up. It will supposedly take 500 degrees and 800psi. He said after that he would put KW Block seal and follow the directions. I have heard of people using similar products with great success. Any one out there have any stories or past experience with these products?
    Odd part is when I put the old cap back on it stopped leaking? I drained the oil and it did not appear to have water in it, nor do I see any oil in the water.

  2. #2
    Veteran Member
    Join Date
    Dec 2009
    Posts
    2,434
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: The kiss of Death? YM1700

    If your crack is accessible for welding a good welder could repair it. I have heard of good results with JB Weld. I would go with a good welder if possible. Just my opinion.

    You won't hurt the tractor to run it as long as you watch your coolant level.

  3. #3
    Super Member California's Avatar
    Join Date
    Jan 2004
    Posts
    5,401
    Location
    Sonoma County
    Tractor
    Yanmar YM240, YM186D, and another YM186D

    Default Re: The kiss of Death? YM1700

    Sounds like that wasn't really a 16 psi cap.

    Lots of old tractors have welds that repaired freeze damage. It's not a 'kiss of death', just another bug to work out to put the tractor in service. A dealer on here posted recently that he has welded several Yanmars and they are easier than most because the block is better metal than the typical cylinder block.

    I would find a local welding shop with an excellent reputation in this specialty - maybe ask an auto dealership or heavy equipment shop where they send theirs. If you can find the right specialist it will be as good as new.



    Not really relevant - I've welded cast iron garden furniture (metal quality unknown and assumed low grade) using expensive high-nickel welding rod, after reading up on technique. This seems to require all-over preheating, and very short duration welds because excess heat at the joint makes cast iron brittle adjacent to the weld. The repairs turned out fine, the two legs I welded back together have taken as much abuse from dragging the furniture around as the undamaged ones. I was pleased with myself to tackle the unknown with no experience (and an old AC stick welder) and get good results ... But if it had been my tractor I would have taken it to a professional welder instead. There are times when it doesn't pay to cheapskate a project.
    Last edited by California; 11-19-2012 at 11:15 PM. Reason: more detail - probably more than anyone cared for.

  4. #4
    Super Member clemsonfor's Avatar
    Join Date
    Sep 2009
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    6,147
    Location
    Greenwood Co., SC
    Tractor
    Yanmar YM2000

    Default Re: The kiss of Death? YM1700

    I second wHAT WINSTON SAID
    YM2000. MF dirt scoop,4' Jbar bushhog,boompole, LMC 12-16 disk harrow, 4' Atlas boxblade (with rippers). 1980 chevy K10,1990 ford ranger 2wd (285K miles),1997 saturn SL2 (twin cam!!),2001Toyota Higlander
    1986 Cobia 177 sunskiff w/1981 Johnson 60 hp
    1991 Javalen 17ft w/same year 150 Johnson GT
    Troybuilt 4 cycle & Echo 2 stroke,cold natured(need carb rebuild),MS390 Stihl, Northern tool pressure washer, mixes water into the oil in the pump(now dead, motor on a tiller). 5000 watt generator.

  5. #5
    Advertiser sweettractors's Avatar
    Join Date
    Jul 2003
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    7,147
    Location
    Central Kentucky
    Tractor
    JD 6403 CHA-JD 3130 CHA

    Default Re: The kiss of Death? YM1700

    I have always operated under the assumption that it was against the law to sell a tractor with a busted or welded block. Of course, if it was disclosed before the sale, everyone knew what they were getting into. Ken Sweet
    http://www.sweetfarms.com/

    Sweet Farm Equipment LLC (Internet Sales, Shipping All States)
    Shipping Facility
    1815 Defries Rd., Canmer, Ky 42722 Toll Free 1-866-528-3323
    Ken Sweet sweet@scrtc.com

    Shipping Example: Can ship 800 lbs from Ky. to Dallas for $165
    The Northeast shipping corridor is a little more expensive.

  6. #6
    Super Member clemsonfor's Avatar
    Join Date
    Sep 2009
    Posts
    6,147
    Location
    Greenwood Co., SC
    Tractor
    Yanmar YM2000

    Default Re: The kiss of Death? YM1700

    maybe in your state? never heard of that one? And I think that is the problem, I don't think this guy knew!
    YM2000. MF dirt scoop,4' Jbar bushhog,boompole, LMC 12-16 disk harrow, 4' Atlas boxblade (with rippers). 1980 chevy K10,1990 ford ranger 2wd (285K miles),1997 saturn SL2 (twin cam!!),2001Toyota Higlander
    1986 Cobia 177 sunskiff w/1981 Johnson 60 hp
    1991 Javalen 17ft w/same year 150 Johnson GT
    Troybuilt 4 cycle & Echo 2 stroke,cold natured(need carb rebuild),MS390 Stihl, Northern tool pressure washer, mixes water into the oil in the pump(now dead, motor on a tiller). 5000 watt generator.

  7. #7
    Bronze Member
    Join Date
    Nov 2012
    Posts
    79
    Location
    Lavonia, GA
    Tractor
    Yanmar 1700

    Default Re: The kiss of Death? YM1700

    Quote Originally Posted by clemsonfor View Post
    maybe in your state? never heard of that one? And I think that is the problem, I don't think this guy knew!
    He didnt know. In the time he owned the tractor he probably didnt work on/with the tract as much as I have already. Even if it was a law what would I do sue him? In Georgia its "buyer beware"

  8. #8
    Veteran Member deepNdirt's Avatar
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    Sep 2009
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    2,258
    Location
    Nth East Ga, USA
    Tractor
    yanmar YM-1700

    Default Re: The kiss of Death? YM1700

    The trick is when welding an engine block do not grind back off the weld in an effort to not let it be seen, The fact is its much better leaving the weld built up, Lay out a bead on each side of the crack and then finish it up with jointing them in the middle,
    Not sure if a Block sealer will work on this kind of cooling system, I'm not saying it won't, but there's no water pump to move the particles around as might be needed, I've used it with successful results on car engine head gaskets, not on an actual crack in an engine block,
    Never judge a man until you've walked a day in his shoes,

  9. #9
    Bronze Member
    Join Date
    Nov 2012
    Posts
    79
    Location
    Lavonia, GA
    Tractor
    Yanmar 1700

    Default Re: The kiss of Death? YM1700

    Quote Originally Posted by deepNdirt View Post
    The trick is when welding an engine block do not grind back off the weld in an effort to not let it be seen, The fact is its much better leaving the weld built up, Lay out a bead on each side of the crack and then finish it up with jointing them in the middle,
    Not sure if a Block sealer will work on this kind of cooling system, I'm not saying it won't, but there's no water pump to move the particles around as might be needed, I've used it with successful results on car engine head gaskets, not on an actual crack in an engine block,
    Good thought about the block sealer. I think I will stay away from that. I looked again last night at the leak. The leak appears to be coming from from the top of the weld, almost like its pourus or didnt bond well. With the old radiator cap on I can watch it seep out. I think I will clean it thoroughly, rough it up with some sand paper and try high heat JB weld. It is suppose to stand up to 500 degress and 800psi, neither of which I should ever reach. I have been dong alot of reading and there are quite a few happy endings using JB weld. I think alot of it has to do with the prep work to make sure you get a good tight bond. Will let yall know how it goes! If you dont see any more post from me I guess you will know how it went

  10. #10
    Super Member clemsonfor's Avatar
    Join Date
    Sep 2009
    Posts
    6,147
    Location
    Greenwood Co., SC
    Tractor
    Yanmar YM2000

    Default Re: The kiss of Death? YM1700

    That hig heat stuff really can take it. I have a lady here at work who is into hit n miss and old JDs she has talked about using it on Exhaust manifolds.
    YM2000. MF dirt scoop,4' Jbar bushhog,boompole, LMC 12-16 disk harrow, 4' Atlas boxblade (with rippers). 1980 chevy K10,1990 ford ranger 2wd (285K miles),1997 saturn SL2 (twin cam!!),2001Toyota Higlander
    1986 Cobia 177 sunskiff w/1981 Johnson 60 hp
    1991 Javalen 17ft w/same year 150 Johnson GT
    Troybuilt 4 cycle & Echo 2 stroke,cold natured(need carb rebuild),MS390 Stihl, Northern tool pressure washer, mixes water into the oil in the pump(now dead, motor on a tiller). 5000 watt generator.

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