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Harley needs to ditch the roller crank
Why is Harley Davison still using a pressed together, tinker toy, roller crankshaft?
Has anyone else wondered about this? I'm not a harley fan and i doubt I'll ever get one but I do like the Road King and if an Evo Road King with a carb came around that was at the right price I'd be tempted.
I understand their desire to have both jugs in the same plane. It makes a nice good looking engine and its thin, but they could use knife and fork plain bearing rods like the merlin/daimler/allison aircraft engines of ww2 used.
If they used plain bearing rods like most cars they would have to offset the cylinders the distance equal to (about) the width of the rod big end. This may improve cooling the rear jug.
Maybe the milwaukee 8 will be the last Harley with this non-sense and the revolution engine is the future. If this is true I think they should go with a 90 deg twin and not have the split crank pin or counter balance shafts the revolution probably has. New Harleys would sound like a Ducati and thats not bad.
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