Saturday, 21 March 2026

Model A - fitting the kickstart pawl

 Back home after a few days away fitting a new front door and frame at my daughter's house in Kent, I find a few minutes to move the kickstart shaft project along a little bit. 

When I left a few days ago I had the shaft set up in the pillar drill just waiting for final adjustment and the fitting of a centre drill to start the hole for the pawl.


That done, we move on to the 9/32" hole on the outside of the shaft. I have discovered that the pin is retained in place by the low gear pinion and cannot come out in service. I bought a pair of long series drills for this job and it makes it a little easier to set the work up on the pillar drill. We go right the way through both sides with this one:


We follow the 9/32" with a 5/16" drill which only goes through the inside web. I'm pleased that the pin fits very well in these two holes and with a little fettling (the pawl was rather ragged) the pawl goes in as well.


I'm a bit concerned by the shape of the pawl where it engages the pinion as the surface, perhaps not surprisingly, is rather worn. A further problem is that the cam which pushes the pawl back into place actually jams the shaft. This is due to the lack of wear in the new shaft I think since dimensionally it is identical to the old one.

Working on the pawl a little to square it up and refine the edges will be a benefit I think. With a little care, a file, a linisher and a pot of case hardening compound we will end up with a pawl that fits and has sharp edges giving it plenty of life.

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