Is my mercruiser a aplha 1? How do I tell

[ctaylor2069]

I just got a 1985 century with a mercruiser 3.7. I believe it's a alpha one. How do I find out for sure? I'd like to order a water impeller kit. Thanks

 

[Bt Doctur]

It the drive is held together by nuts ,its Alpha
If the drive has 2 nuts and bolts on each side its a Alpha GEN II

 

[alldodge]

And always remember DonS Adults Only Section, just scroll down it has pics
http://forums.iboats.com/forum/engi...miscellaneous-mercruiser-information?t=329915

 

[ctaylor2069]

Thanks guys

 

[ctaylor2069]

I have another question. On each side of out drive there are to electronically controlled "things" what are they and what do they do? The wires going to them are broke

 

[alldodge]

I'm going to need a pic

 

[ctaylor2069]

Never mind answered my own question

 

[ctaylor2069]

I believe it's the trim sender. Which would be why my gauges for the trim do not work . can't upload pic

 

[nola mike]

Ones the trim limit switch, the other is the sender for the trim gauge

 

[ctaylor2069]

Ok well they are both broke. Could that be why they wired a aftermarket switch? The factory guage and switch so not work