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Norton Commando Engine Valve Lift Gauge Holder — image 1
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Norton Commando Engine Valve Lift Gauge Holder

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Tools to measure valve lift on a Norton Commando 750/850.

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I needed to measure the valve lift on my Norton Commando to convince myself that I'd got all four pushrods seated correctly when I reinstalled the head. These jigs are made for use with this gauge sold on Amazon:

https://www.amazon.com/dp/B01JYCVHLK?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

I printed them in PETG plastic and found them stiff enough to get measurements repeatable to 0.008" of lift or so while the engine was still in the bike and I was pressing with my hand on the kickstart lever to roll the crank/cam over. I suspect if I'd done this with the engine on the workbench and a degree wheel attached, it would have been even more accurate.