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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Re: Beaten CASE 450 Crawler_Ya I bought it.What would you do if?

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01-14-2013 14:29:10

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Zachary Hoyt was spot on. Undercarriage can be a much bigger money pit compared to the engine. You may be lucky and it is only the motor which has been abused.

Antifreeze going past a hot valve is likely the cause of the corrosion. And the cracked manifold is also a likely pointer to 'cold' water sprayed on a very hot area.

Are the valve guides fitted through the cooling system on that head? Seems as though that could be a leak, especially when the radiator was pressurised. It should have been pushing water out of the radiator if the head gasket was leaking and possible hydraulic lock if the leak was a big one. Shame you didn't check out a bit more before pulling the engine apart.


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01-14-2013 16:15:03

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 Re: Beaten CASE 450 Crawler_Ya I bought it.What would you do if? in reply to oliver90owner, 01-14-2013 14:29:10  
Thanks Oliver90Owner. All 7 valve ports in the head are normal and dry except the exhaust port on the #4 cylinder. When it ran the rad never had time to pressurize as the coolant (so much that it couldn't all burn in the cylinder) came out the crack in the manifold and sprayed out the side.

I had the head magnefluxed but not pressure checked. They didn't find any cracks so that's why I am thinking it is the head face that is not straight.

As for the carriage, I knew it was done when I bought it and am not too worried. There are enough used dealers and farmers around to do something. If the tracks fall off, I can always bolt wheels on it and turn it into a tractor.

The engine however is driving me nuts. I'm at the point where I just want to find something to justify the coolant leak that seems to be limited to the #4 cylinder.

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