SOHC.co.uk Forums > CB350/400
Gear shift pivot play fix?
McCabe-Thiele (Ted):
--- Quote from: Oddjob on November 26, 2021, 02:47:51 AM ---What is the measurements of both please Ted so I can compare with my mod.
--- End quote ---
In the absence of air gauges or laser tools the best I can do is measure from the centre of the pivot to the imaginary centre of the toe end part as if it were a flat plane.
I drew a circle inside the pivot hole onto a card then dropped down vertically as accurately as possible from the toe end centre point using my calipers.
I figure this represents the actual leverage as it eliminates the curve.
The Honda part the length between these two points was 115 mm.
On my Bertrums one (visually lacks the curve) it was 110 mm.
E&OE
K2-K6:
I don't know if it's the angle of the photo in your other thread Ted, but is the dimension from main lever pivot point to the centre of first ball joint the same as original? The new one looks shorter than original part (in photos) which would need more movement of the foot end to get the same gearbox transaction.
As noted, it's perception from the comparison photos but maybe no difference in reality.
McCabe-Thiele (Ted):
--- Quote from: K2-K6 on November 26, 2021, 11:02:24 AM ---I don't know if it's the angle of the photo in your other thread Ted, but is the dimension from main lever pivot point to the centre of first ball joint the same as original? The new one looks shorter than original part (in photos) which would need more movement of the foot end to get the same gearbox transaction.
As noted, it's perception from the comparison photos but maybe no difference in reality.
--- End quote ---
The replacement arm is wider at that point so looks squatter - the difference if there is any is very small.
Likewise the arm on the splines certainly looks different but is pretty much indentical in terms of leverage.
Having big feet means the shift pedal end will be further away from my toes nearer the top of my Tarsal bones (tarsuls / talas)!
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