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John Deere G problems getting water in exhaust ideas?

J

JohnDeereJimOhio

Member
I just got done with my JD G going to a pull this Sunday.. It ran good last fall and tire it down to paint it.. I added an aluminum radiator and water pump to save some weight.. Nothing was touched in my motor it"s .125 over and carrying 110psi in each cylinder however at start up I"m getting a good bit of water out of the exhaust.. Seems to be getting worse the more I run it.. However I"m getting no water in the oil and its running pretty good.. It"s not building pressure in the radiator either. Now I would assume if it was head gasket it would be getting water in oil and would not hold steady compression in cylinders.. So my question is what do u guys think crack in the head? Block? Am I missing something here? I draine the water out of it in the fall and ran it just a short time to heat it up and get the water out of it before I started working on it.. Is there something I"m missing any help is appreciated..
 
Jim...here in Wisconsin John Deere G"s are noted for having cracked heads. The ones I"ve seen crack between the valves. You very seldom see a used JD G head that has not been repaired. Neighbor had the same problem and he removed the plugs and cranked it over cold to see which side had water in it. The cracks are usually small but big enough to leak water when the head is cold.
 
My G did that and it was a cracked head, right between the valves like was said below. Bought a head off a "running" tractor, ended up finding a crack in the same place on that head. Had it welded and it's been fine the last 5 years.
 
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