Mk3 crankshaft
- Thread starter Edupantxi
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The Mk3 crankshaft is wider between the cases and the drive-side shaft is longer due to the electric start sprag assembly so maybe not impossible to fit a Mk2A (or any other pre-Mk3) crank into Mk3 850 cases but it wouldn't be a straight swap and the Mk3 electric starter obviously couldn't be used.
Maybe a difference in timing-side shafts as well (because the Mk3 crank and intermediate gears are thinner) but I'm not sure about that.
Maybe a difference in timing-side shafts as well (because the Mk3 crank and intermediate gears are thinner) but I'm not sure about that.
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I'm not going anywhere near this question . Good luck .
Fast Eddie
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I assume the extra thickness is in the cheeks?
Is it in both, or just one?
How much wider is it?
Why was this done, did it address a known failure mode?
I’m just curious here …
Is it in both, or just one?
How much wider is it?
Why was this done, did it address a known failure mode?
I’m just curious here …
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- Nov 20, 2004
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- 21,090
Both apparently.
750 vs 850 Commando Crankshaft
Does anyone know the difference between the 1971 - 1972 750 & 1973-1974 850 Crankshafts ? Can the 750 crankshaft be used in 1973 850 cases without problem ? Another question is, Why does the 1972 Combat engine have the extra Tabbed Thrust Washer on the Camshaft ? Thanks in anticipation...
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Mk3 changes from 74 models
I read somewhere that the MK3 has over one hundred changes from the previous model, but have never found a listing of these changes. Is there a publication which details the items? Glen
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I don't recall any actual crank dimensions having been quoted for either, only the crank and intermediate gear widths (I'm searching for the Mk3 intermediate gear width but probably thinner by a similar amount).
Commando parts jumble build thread!
Hi everyone, I didn't see a thread for introductions so I thought I would just post up what I have. I've been dying to have a Norton Commando ever since I was 14 (I'm 33 now), and I finally picked up a supposed "90% complete basket case". Well, not quite. It looks like various bits and pieces of...
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I don't know.
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