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JD 4100 Diesel Hard Starting

Robert
I have a JD 4100 w/3 cylinder diesel. It started fine for 11 years until recently. Now it takes several minutes to start. After it starts, it runs fine and restarts fine until it sits a day or so. Ambient temp in 75 degrees, so I assume it's not the glow plugs. I have replaced the fuel filter, air filter, and fuel lines. The engine has self-bleeding fuel system. I have checked for air intake leaks. What next? Thanks.

John Heine First check glow plugs.Tractor has pre combustion chamber will not start good even in hot weather without glow plugging.


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