- Aug 26, 2010
The usual cause for splitting through the bearing housing is piston seizure !!acotrel said:The 58% balance factor is stupidity if the motor is going to be revved hard, I have a set of cases which have split through the drive side bearing. .
When the piston stops, the crank has no-where to go, and escaping is about its only option.
Common sight at classic racing - across a wide range of brands.