08-12-2020, 05:58 PM
(This post was last modified: 08-12-2020, 05:59 PM by Rogerfrench.
Edit Reason: Spelling.
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Something over 60 years ago, Simplicity went up Prescott faster than most do today.
Splash Austin 1 5/16" crank, 2-jet, overbored oil pump. Of course, Austin cranks were a lot younger and more plentiful then!
The sump was the normal Austin tin variety, with a chunk cut out at the front to provide clearance for the steering track rod, so had less capacity than standard. At that time I think it ran on Shell X100 before my father became a Castrol convert.
Other specs? All internals polished and balanced, lightened flywheel and clutch plate.
Jack French cam (!), large radius lightened and shortened tappets, 1.25" inlet valves, ports blended. Nippy carburetter and inlet manifold, Brooklands exhaust. Unblown Ulster cylinder hesd with relief for valves. All meticulously assembled, probably the most important thing about it! Chummy 3-speed gearbox, changed into 2nd soon after start and stayed there.
Simplicity was very reliable, being driven to events, racing and driven home.
Thought you might be interested.
Splash Austin 1 5/16" crank, 2-jet, overbored oil pump. Of course, Austin cranks were a lot younger and more plentiful then!
The sump was the normal Austin tin variety, with a chunk cut out at the front to provide clearance for the steering track rod, so had less capacity than standard. At that time I think it ran on Shell X100 before my father became a Castrol convert.
Other specs? All internals polished and balanced, lightened flywheel and clutch plate.
Jack French cam (!), large radius lightened and shortened tappets, 1.25" inlet valves, ports blended. Nippy carburetter and inlet manifold, Brooklands exhaust. Unblown Ulster cylinder hesd with relief for valves. All meticulously assembled, probably the most important thing about it! Chummy 3-speed gearbox, changed into 2nd soon after start and stayed there.
Simplicity was very reliable, being driven to events, racing and driven home.
Thought you might be interested.