Newbie to force

[gustafsonerik]

Hi i bought a 87 force 85hp, I have a few questions

Can i interchange any parts with other motors, i.e coil packs,lower unit,etc

I'm going to change out the water pump,i've done it on my merc..but is there any pointers on how to get it back up there after i'm done easily???

Wheres the cheapest place to buy parts?? thanks Erik

 

[Frank Acampora]

Re: Newbie to force

On any 3 or 4 cylinder engine from Force 90 on down to Chrysler 84, almost anything is interchangeable. The one big exception is the trigger module since there are 4 triggers spaced 90 degrees apart on the 4 cylinder models and only 3 spaces 120 degrees apart on the three cylinder models. The obvious exception is that carbs from a 3 cylinder will not fit a 4 cylinder and vice-versa.

There are 2 different ignition systems. One has connections made up with quick connects on the wiring, the other has connections made on a terminal board right on the module and coil mounting board. The modules and coils however are all interchangeable. Lower units--water pumps: all essentially the same with minor differences in skeg shape. Pistons? two sizes were used on various year engines-- 3.3125 and 3.375 --so if you need to replace pistons, measure first. Same with heads the larger piston will not fit into the smaller head but he smaller piston will fit into the larger combustion chamber head. Only one size head gasket was used for all bore size engines though.