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Tool Talk Discussion Forum

Melted head cover

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Don

08-21-2003 10:01:30




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I have an old tractor with an air-cooled Wis-Con engine. The Aluminum head melted and I now have a �� valley from the piston chamber to the outside. I ordered a new head and gasket, which is on the way, but I have a question on why or how this may have happened. I do not want to melt the new head. Recently the engine has been stalling when a load is placed on it. I then have to stop what I was doing (it has a front-end loader on it and I am moving dirt) and wait for the engine to return to full throttle. The engine goes from a near stalled state and surges to running at full throttle. Could this have caused my problem? Also any ideas on how to stop the stalling when a load is placed on the engine? I have replaced several parts, readjusted the governor rod on the engine and cleaned the carburetor a bit. I was thinking that I may need to rebuild the carburetor but I would rather do this as a last resort. Thanks for any info.

Don

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arthur

08-21-2003 14:59:43




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 Re: Melted head cover in reply to Don, 08-21-2003 10:01:30  
LAST RESORT IS HERE NOW. rebuild your carb. clean all air pasages around engine make all engine covers are on don't run your engine lean when it's working hard .if you take time now to service your engine . you can get the job done with out more problems and be happy dont forget the air cleaner. lots of luck .



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TimC

08-21-2003 13:19:59




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 Re: Melted head cover in reply to Don, 08-21-2003 10:01:30  
It sounds like it is starving for fuel.

This can be caused by a vacume leak, cloged fuel filter, float level set to low causing it to run out of fuel before it can fill the bowl, trash in carb or line.

A very lean condition will cause it to loose power and run very hot. You may have been able to hear detonation or pinging going on in the engine when under a load before it fell on its face.



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