John Deere 6630: Motor very hard starting
Problem of tractor 6630. The engine is very difficult to boot.I need help to find the reason for the problem.What should I check?
Restriction in the filter / air cleaner or in the induction system.Cold boot system incorrectly used.The piston rings are worn out or broken.Transmission shaft of the broken fuel pump.Water mixed in the fuel.Crankcase oil too heavy.Use adequate viscosity oil. Grade of incorrect fuel.The drive of the fuel pump is defective.Check and review.The synchronization of the fuel injection pump is incorrect.You have to adjust it.