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Have a zforce 44 with Kohler command 20 engine. Engine won"t turn. Ran a jumper to starter post< starter spins but doesn"t engage. Bought new starter and Solenoid, does same thing. any suggestions?
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OC is over crank failed to start. It will normally try 3 times before giving this error. You need to disconnect the battery and remove the starter motor, make sure it is free to move / spin. Either the starter has seized or the engine has siezed. Make sure the engine is free to rotate also, once you remove the starter you will see the engine flywheel there, removing the spark plugs will make it easier to rotate the engine. I would guess it is more the starter.
AS SOON AS IT DOES THIS, TAKE A HEAVY DUTY JUMPER WIRE AND JUMP ACROSS THE TWO LARGE POSTS ON THE SOLENOID, IF IT CRANKS, REPLACE THE SOLENOID IF IT DOESN'T THEN CHECK YOUR BATTERY TO SEE IF IT HAS 12 VOLTS OR MORE. IF IT DOES YOU NEED A NEW STARTER AND IF IT ONLY HAS 50 HOURS ON IT YOU SHOULD BE ABLE TO GET WARRANTY UNLESS THE WARRANTY TIME IS UP
You should properly test the battery. A dead cell in a battery will absorb the current that you are trying to supply by jumping.
There may be a fault in the wiring system, thus not allowing enough current to properly supply the starter. Construct a way to temp. connect the positive jumper cable lead to the tractors battery cable connection on the starter that will not short circuit and connect the other poss. end to your trucks poss.battery terminal and then connect the ground lead as normal but to the tractors frame, then attempt to start. If this allows the starter to operate properly then disconnect your jumpers and Inspect the positive and ground wires for insulation cracks, blisters and corrosion. Also check the connections for being clean and tight.
You could also remove the spark plugs ( to release compression that will allow the engine spin free) to see if the starter will then turn the engine.
If all fails, sorry to say, your starter may be weak and in need of replacement.
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