SOURCE: john deere tractor 1070
The lookup at:
http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.HomePageServlet_Alt
for the model 1070 harvester shows it is a 3 cylinder unit.
What I might recommend is pull off the valve cover and make sure the intake valve is moving up and down as the engine is cranking. (dont get cut up)
It sounds like a pushrod may have fallen out.
good luck.
Joe
SOURCE: I need a wiring diag.
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