97 force 90 hp trim tilt opinion?

[CAPTKEV85]

So this winters project is a tare down of my 90 hp since the swivel pin froze completely. Now I found a clean fresh water pin and transom assembly. My questions is, my trim pump is the 2 wire round style pump. The used very clean one I bought is the 3 wire square style.

Which one do you guys think I should use? Rebuild my round style?

Or use the square ?

Thanks

 

[jerryjerry05]

Should have put pics of the T@T motors too.
The square one: I believe is the newer model.

 

[CAPTKEV85]

So I finally was able to take some pictures. The on in it’s side is a two wire pump, which is what I had on my motor. The new transom assembly I purchased on eBay came with a 3 wire and it looks brand new. I want to use the new. I’m assuming the third wire is just a ground.

 

[racerone]

If you assume that a wire is " just a ground " you could end up with expensive smoke.

 

[CAPTKEV85]

If you assume that a wire is " just a ground " you could end up with expensive smoke.

I hear ya that’s why I’m reaching out to see if it’s wired differently.

 

[racerone]

The 2 wire motor use 2 relays to switch + and - .-----The 3 wire motors may use 1 solenoid for up.---- Down is lower current through the switch.-----Find the wiring diagrams for both to see what to do.

 

[CAPTKEV85]

The 2 wire motor use 2 relays to switch + and - .-----The 3 wire motors may use 1 solenoid for up.---- Down is lower current through the switch.-----Find the wiring diagrams for both to see what to do.

Thank you.