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Old 01-02-2010, 16:13   #1
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Location: Milton Florida & Cervignano del Fruili, It.
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Yanmar KM4A Transmission Cooling

Help please. I have a water cooled KM4a that leaks water into the transmission oil. How do I remove the internal cooler to either fix or replace it?. I can't seem to find an internal parts diagram or get Yanmar to talk to me. I have the oil out and the cover loose but there seems to be a plastic tube ---. I am being a little cautious. Thanks for any guidance.
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Old 12-05-2010, 02:45   #2
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km4a water cooled

as my native language is Italian, I beg you pardon for the mistakes if any.
I'm experiencing exactly the same problem as you on my kanzaki km4a gear : I can imagine you already fixed your problem ; may I ask for your suggestion about how to do it ? Thanks so much
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Old 16-05-2010, 02:11   #3
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hello. I have it out and on my workbench. When we return to the US in mid July I hope to get it either to a good machine shop or to a good local Yanmar service station or to the Major distributor. I have the cooling part disassembled as far as it can be done without some special tools so I can tell you what I have learned. Email me at jannpage@yahoo.com We are in Northern Italy now until mid July so perhaps we can swap notes easier. Your English is very good. Despite a great deal of work, my old brain is just not learning Italian not nearly good enough. Cheers Page
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