- #1
wolram
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If 2 twin cylinder engines are geared together (90 degree cranks) and then a chain is coupled to the rear engine to a gearbox, would it be best to have a 1432 or a 1 and 3, 2 and 4 firing order,1 being front engine left 4 rear engine right ,to give least load on the gearbox, intuition tells me 1432 would be best (the load is spread) evenly, but would the main shaft bearing have a reduced life time.