Pressing Times!
The disassembly and assembly of a pressed up multi-cylinder crankshaft is considered by many to be a specialist job, carried out behind closed doors with mystique and intrigue, but it’s actually quite an easy job to do at home if you have a few bits of basic engineering equipment.
With the crankcases finished, it was time to start adapting a standard four-cylinder Z1 crankshaft to fit my new six-cylinder engine. The standard Z1 crankshaft is a pressed up design made from eight hardened steel webs and a central shaft containing the cam-chain drive sprocket. The webs vary in shape and purpose. One web incorporates the primary drive gear; four webs incorporate big-end journals; and the other four webs
