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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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S55 diesel cylinder head

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MikeS55d

06-19-2005 17:20:27




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I recently spun a rod bearing and found severe erosion on the piston and cyl. head (of that cyl. only). The other 3 combustion chambers were in very good condition except for a crack from the injector hole to the gasket surface. The same crack can be found in all 4 cylinders. My guess is pre-ignition from early fuel injection due to a faulty injector or pump (perhaps a weak spring allowing fuel to flow too early).

Has anyone else had the same problem? Are these heads prone to cracking from the injector hole? It would probably be cheaper to find a used or rebuilt head then welding up all the damage.

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J. Schwiebert

06-19-2005 19:14:55




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 Re: S55 diesel cylinder head in reply to MikeS55d, 06-19-2005 17:20:27  
You are not used to a Lanova Combustion chamber. If I took one of those heads off and it was NOT cracked I would worry. I would not weld it. Questions send me an e-mail. I would put seats in it to set the valve recession to the correct specs. It will improve starting.



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