How to replace pinion, which punch?

jboger

Registered User
Jan 7, 2019
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I have a common 16s Elgin (model 291, 7j). The 4th wheel has a broken pinion. I have a spare pinion. I removed the broken pinion and was ready to stake the new one on to the wheel. I stopped. I have never done this. Am I using the right punch, I asked myself. I was about to use a flat hole punch then thought maybe I should use a rounded hole punch. I lean towards the flat hole punch (that is to stake the pinion to the wheel) but thought I'd ask here. Which punch should I use?

John
 
Last edited:

Karl Burghart

NAWCC Member
Jan 30, 2012
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You may need to use a flat lightly to seat it but then use a a round and then follow up with flat. Like riveting a balance staff.
 
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Rockford's early high grade movements by Greg Frauenhoff