mercury 9.8 powerhead swap

Jett28572

Recruit
Joined
Jul 24, 2017
Messages
2
I have a 1972 and a 1975 9.8. Can I swap the power head out. The 72s wiring is dry rotted. Yet the 75s wiring is different and the power head is seized. But the 72 power head is good. Can I make one motor with these two.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,921
I believe the ignitions are different
 

Jett28572

Recruit
Joined
Jul 24, 2017
Messages
2
I know the ignition is different. Can I use the actual block. Can I put the cylinder block from the older motor onto the newer one using the newer ignition system
 
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