You won't find anything on the F/W site about mechanicals because all they do is build the boat and then install the engine/drive package from Merc or Volvo. To find correct parts etc you need to use that model number, it will usually start with a 50 (for 5.0 liter displacement engine), and in the string of letters & numbers there will be a G (GM/Chevrolet engine) or F (Ford engine) to add to the confusion they used both GM and Ford engines both of 5.0 liter displacement (Ford 302 cu in, GM 305 cu in). To make it easy the GM engine has the distributor in the rear and the Ford in the front. GM is easier to get parts for.
go over to:
www.crowleymarine.com
and look in OMC parts, start with year, then engine, then model number it shows parts diagrams. If you find a lot of parts listed as not available by OMC, keep in mind that Volvo Penta and OMC were in a joint venture at this time and if you look up the same year Volvo it will have all the same parts, many parts numbers are the same.
image_339203.jpg Here is how to decode the engine model #:
