Cat 10 Missing when hot

When have you checked your valve clearances?

I second the mag/wire/plug suggestion, I think that is more likely than the valves, but not a bad idea to check your clearances anyway.

Archdf,Would you like to add your 10 to the registry that I'm making up for the 10's that still exist.If so email,PM,or call me with the serial #,location, condition.Thanks Mike Durkin

Might ask if your fuel tank is vented or cap has a vent hole. This was a design flaw in the Ten where on later tractors they vented the Ten tank so when the tractor got warm and the fuel got hotter you would not get a vapor/vacume lock. You could be running low on fuel when hot and under a load.