Marsh Atlantic crankpins Mar 17, 2013 11:56:48 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by philw on Mar 17, 2013 11:56:48 GMT -5 Please can anyone explain why the crankpins appear to give a longer valve travel than the 'throw' of the coupling rods? (and why)..
