Problematic Gearbox

here is the parts web sight for Lionel vision line!

https://www.lionelsupport.com/...07-9867-20bf06b41944

just look threw the diagrams and pick the parts you need from Lionel and order them ok !look at the item numbers and then get that item number and write down the part numbers you need  ! Lionel has a 50% off sale coming up in November which could save you money!

Alan

@Alan Mancus posted:

here is the parts web sight for Lionel vision line!

https://www.lionelsupport.com/...07-9867-20bf06b41944

just look threw the diagrams and pick the parts you need from Lionel and order them ok !look at the item numbers and then get that item number and write down the part numbers you need  ! Lionel has a 50% off sale coming up in November which could save you money!

Alan

I always do when ordering replacements parts and good to know about the sale. I was asking if anyone else has had this problem and what they've done to correct it.

Thanks again

Peter, do you think the loose base pan was the root of your evil?....I’ve taken these type gear boxes before and tapped them to 3-48 thread, and slightly countersink the base pan ( or bottom cover...whatever you’d like to call it ) and use a flat head screw....Ace hardware keeps 3-48 screws....

Pat

This is a common problem with gear boxes in which the bottom cap traps the the axle bushings the screws loosen just enough to allow the bearings to rotate and it causes the bearing seat to wallow out. I would replace the gearbox left and right clamshell  with what ever else you need. When you reassemble use some loctite or paint the head of the screws and don't over tighten. When I rebuild / CLA gearboxes I also put some loctite on the bearing seats a little extra assurance the bearings don't rotate in their seats. I wish they used square bushings on the gearbox axle shaft. I have a couple of old Williams and Weaver brass locos which have this problem of the bushing seats being wallowed out. When these axle bushings wear it also changes the mesh between the gear on the axle and the idle gear of the box. If these bushings were square and made in an upper and lower half ( or front / rear) it would be easy to replace them. As it is you have to pull the drive wheels off and re-quarter them on assembly.          j