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231 Wide Chain swap question...

Boostwerks.com

NAXJA Forum User
Location
Colorado
I just noticed the end of my wide main drive sprocket has two cutouts for oil passage, as well as a beveled outer bearing surface (for a brass syncro?). Now my old narrow chain sprocket doesn't have these cutouts. Looking at how it sits up against the shift mode ring, it appears the cutouts would cause a substantial loss of oil pressure?

Am I over thinking this, or missing something?

TIA!
Bryson

The new wide chain sprocket:




My old narrow chain sprocket:


The shift mode ring:



The wide chain sprocket and mode ring as it sits on the shaft:
 
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