romiller49 posted:I’m not a post war guy but 3/16 is most likely way too much. I really think the worm shaft should be not much more than 1/32 inch. I’m sure someone here will supply the proper clearance.
My end play on the worm shaft equals half the width of the spur gear that is driving it from the armature shaft! The bearing blocks ‘lock’ into the chassis so shimming them isn’t possible. When the worm shaft bottoms out at either end of it’s travel the worm isn’t rubbing the bearing block so the ball bearing must be doing its job. It’s just weird that there’s that much end to end movement of the worm shaft. This is my first and only ‘46 726 so I have no way to compare it to another. I could examine a ‘46 671 or 2020 I have and see how those compare, but the chassis is different. Regarding shimming, I wasn’t able to find a shim with the correct ID/OD since the OD is restricted by the chassis bosses that lock the bearing blocks into place.
Thanks for the reply
AC
