Head Gasket - '57 850

ROADMAN

Member
Well guys, it was a blown head gasket but that is the least of my problems. Piston No. 2 came apart as shown in the attached photo. The sleeve was scratched, imagine that, but not enough to get into the block. I know I'm in for a complete overhaul but I would like your opinion on what caused this. The tractor has ran great for the 3 years I have had it. It didn't smoke or burn oil. There weren't even any leaks. The tempature gauge broke about 2 week ago and I had a new one for replacement but didn't get around to replacing it "dumb a**". Could the head gasket have blown causing water to be sucked into this cylinder and causing the piston to disintergrate? It didn't seem like the tractor ran hot although without a gauge I couldn't be positive. When I tried to drain the water from the block by the pet cock, there was no water. When I pulled the oil drain plug, there was water in the oil. I know I have to do the overhaul but would like your opinion on what caused this damage.
 
The picture didn't upload. Gonna try again
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Possibly. Coolant could have leaked into the cylinder causing a hydrostatic lock upon cranking.

Dean
 
Yep coolant in the cylinder can/will cause that type of thing and not good when it happens. Some how coolant does not make for a good lube of a cylinder plus causes very bad pitting of parts
 

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