Ford NH 2120 starter question

[smclaughlin81]

Be gentle please, but I am at a loss. The starter quit on me while trying to bleed the fuel system, I know.. Anyway, I ordered a new one and it seems as though it is turning the engine the wrong way? It sounds completely different turning over, and I heard a click every revolution on what sounded like the side of the injection pump. The crank was turning counter clockwise (sitting in the seat). I believe, it is supposed to turn clockwise. I looked in the shop manual, I can't find anything about the direction the motor turns. I'd appreciate any help. What am I doing wrong?

 

[lman]

I would think you could figure out the direction by looking at the old starter.

 

[chim]

Look at the radiator fan blades. Should be able to tell from that.

 

[Williy]

You can reverse the direction of your DC motor in two ways. You can change the polarity of the circuit at supply or in the field windings. Or you can change the polarity in the armature winding. A quick cautionary note: Your motor is likely equipped with carbon brushes with beveled edges.

willy

 

[TractorTech]

If you hooked it up the same and bought it from a reputable source, then it would turn correctly. By the way, counter clockwise from the rear of the engine is correct.

 

[IH3444]

OEM starter? or aftermarket? You can get your original rebuilt also. Did you figure out the problem?

 

[Williy]

I can't remember but back in the 50's
the starters in the ford cars on the armature the windings were too thick and by grinding them down it was less draw
on the battery and would spin the engine over a lot faster for a quick start

willy