Atlas C630 issue - male universal borked

[Dirk Jan Blikkendaal]

Had the same problem......
Living in The Netherlands spare parts and mailing are always a problem or very costly....
Came up with the following simple solution.... see picture.
Drilled 2 holes opposite each other in the flywheel about halfway lengthwise (ingnore the second set of holes in the picture... wrong place). A few degrees off (opposite) will pose no problem. [ Guests cannot view attachments ]
First file a small flat spot on flywheel to make drilling easy.
Insert 2 short steel  rods of same diameter and a small drop of CA glue on outside.
These rods should be long enough inside the flywheel to engage the female coupling on the extension shaft.
About 15 minutes work at almost no cost......
Also no issues of noise or imbalance of flywheel.
The coupling will never slip again!!!!
 

[peteski]

Interesting solution.
It doesn't get the flywheel out of balance (causing extra vibrations)?  That is good.

[narrowminded]

If you're stuck I could drill that on center and on size if it would help.  I would need the motor with related parts for pin size and position.  PM if you want to pursue this.

[645diesel]

went with loctite 243 since it might have light oil contamination.  preliminary results are promising. 

[Jamesn320]

Just encases the Loctite doesn't work, I do replacement parts for these.  Here is a link to my post about them.
https://jamestrainparts.com/2020/05/26/replacement-atlas-n-scale-motor-universal-connectors/






Cheers,

James