Model 58 gen Vs Mod 61? help please

[Brian Given]

Hi All:
What I thought was a spare generator for my '59 is a Model 61 and it would appear that the armature oil seal (at the drive end) was quite different from the oil seal on my Model 58. It had a metal retainer cup and the oil seal was deeper than the one on my Mod. 58 or the new seals I ordered for it. According to the catalogues I've seen, the seals should be the same ... but this was certainly a different one. I don't know the history of that Mod. 61 but it didn't appear to be a bodge. Can anyone enlighten me please? I would like to get the Mod. 61 ready to go.
Brian

[Perry Ruiter]

The seal would be the same. Probably the reason for the difference is one is an older one from back in the day and one is a modern one. The main difference between the 58 and the 61 are the armature and the brush end casting. The 58 has a bushing to support the commutator end of the armature (and the armature has a slightly larger OD as well) and externally a flip up oiler to lube the bushing. The model 61 has a needle bearing, no flip up oiler and the armature at that end has a slightly smaller OD to fit the needle bearing ... Perry