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WLA Generator drive gear

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knuckcrazy

Posts: 3

Joined: Wed Aug 08, 2012 1:39 pm

Post Wed Sep 12, 2012 7:45 am

WLA Generator drive gear

45 newbie here so be gentle.
Generator drive gear has a oil slinger in gear that should press against the brass spring loaded seal in timing case cover, correct.
When I set lash and went to install the cover , 1 the slinger hits on the timing cover like the diameter is to big, 2 the diameter is so large that the slinger hits the brass pins that retain the spring loaded seal for lack of a better term. Any help would be great.
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Bruce Palmer III

Posts: 49

Joined: Sun Nov 27, 2005 1:54 pm

Post Wed Sep 12, 2012 11:32 am

Re: WLA Generator drive gear

Three things come to mind. 1) wrong gear, 2) aftermarket armature with a shaft that is too long, and 3) a poorly made aftermarket gear.

What is the diameter and width of the slinger? What is the overall length of the gear? The 1937-1957 gear's slinger diameter is 1-11/32" and the overall length is 1-11/64". The slinger's outer width is 11/32" and steps up at the center to 23/64".
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knuckcrazy

Posts: 3

Joined: Wed Aug 08, 2012 1:39 pm

Post Wed Sep 12, 2012 12:53 pm

Re: WLA Generator drive gear

Bruce Palmer III wrote:Three things come to mind. 1) wrong gear, 2) aftermarket armature with a shaft that is too long, and 3) a poorly made aftermarket gear.

What is the diameter and width of the slinger? What is the overall length of the gear? The 1937-1957 gear's slinger diameter is 1-11/32" and the overall length is 1-11/64". The slinger's outer width is 11/32" and steps up at the center to 23/64".

1. are there more than one?
2. no the real deal
3. In my humble opinion (new generation "IMHO") everything made aftermarket is poorly made.
I will measure tonight and thank you
Bob
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Bruce Palmer III

Posts: 49

Joined: Sun Nov 27, 2005 1:54 pm

Post Wed Sep 12, 2012 3:46 pm

Re: WLA Generator drive gear

There are several drive gears with slingers. A #632-32 for 1932-1936 RLs, #632-37 for 1937-1957 45 models, like your WLA, #31075-58A & 58B for 1958-1973 Servi-Cars, #31071-52A for 1952-1957 Ks & XLs, and #31071-58 for 1958-1962 Sportsters.

The 1958 & later gears are held to the shaft by an end nut so do not have a lock pin hole.

The -52A K Model & 57XL gear might give you grief as it is both wider and longer. The diameter of the -52A gear is 1-5/8" and it is 1-13/64 long.
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knuckcrazy

Posts: 3

Joined: Wed Aug 08, 2012 1:39 pm

Post Thu Sep 13, 2012 8:24 am

Re: WLA Generator drive gear

That explains it
OD 1 5/8"
5/32 slinger width
overall legnth 1 7/64 inch
it has a pin hole but looks fresh drilled
14 tooth
any idea with these dims what it fits?
Bob
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Bruce Palmer III

Posts: 49

Joined: Sun Nov 27, 2005 1:54 pm

Post Thu Sep 13, 2012 12:17 pm

Re: WLA Generator drive gear

Sounds like 1958-1962 Sportster #31071-58.

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