Need help with a Tach reader

Former Member

I got a new NW-2 switcher for Christmas PS2. I kept hearing this ratcheting sound and when I took the shell off the loco the flywheel is rubbing the underside of the shell

This is the flywheel with the Tach reader and it sits quite high. Theres a quarter inch gap between the flywheel and the motor case . I can see that the flywheel itself isn't all the way on the motor shaft (Shaft isn't flush with the top) BUT it is the correct height for the reader . I can't see any way to lower the reader????? Am I going to have to shim the shell out or is there a way to lower the reader and the flywheel?

David

1/4/121:45 PM

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CharlyOGR Forum Member

I have an S2 that had a similar problem/sound and I found it to be the motor was not properly seated/secured in the truck block.

C

1/4/122:48 PM

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Former Member

Thanks Charly,

It's seated right in the truck block but I measured it and the motor shaft end is about an 1/8 of an inch down inside the flywheel where as on the other motor it's flush with the top. As I see it other than shimming out the body ,the only fix is to press the flywheel on farther.

Like I said though as it is right now the tach reader and the flywheel are the correct height so if I press the flywheel on farther to stop the rubbing I'm going to have to be able to adjust the tach reader too.

David

1/4/124:28 PM

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mrmacherOGR Forum Member

The tach reader and its PCB board sit in a plastic holder attached to the motor. Can you gently get the reader to slide out and remove some of the board from the bottom edge. Then reinsert the board and it should be lower to match what you want to lower the fly wheel to.

1/4/1210:21 PM

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Former Member

Thanks for the help guys but I just super glued 2 AN3 washers on all four corners of the shell It's a major PITA to get that motor out of there so I can press the flywheel on farther and I've spent all I'm gonna spend in shipping back to MTH and Lionel for a good While to come.

While this is not the on line hobby shop's fault I bought this from (His service is exemplary) This does say alot about buying from the LHS

David

1/5/121:12 AM

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