1982 Evinrude 175, inoperative power trim pump

[pastorbud]

I have a 1982 Evinrude 175 on the stands after buying it off Facebook marketplace. I got it fired up, but can't get the power trim to work. The pump has three wires: blue, green, and black. (Previous owner cut them when he removed the outboard from the old boat.) As I understand it, blue is up and green is down. I have continuity (1.4 to 1.6 ohms) from blue to black and from green to black and from blue to green.

But when I use a jump box to put 12 volts across blue and black, or green and black, there is no response from the pump motor.

Any suggestions for diagnosing? Can I put power across blue and green? That's how it worked on my old Force outboard two wire pump.

 

[racerone]

No point in putting power to the blue and green wires on that model.-----It is green and black or blue and black !!

 

[pastorbud]

Sounds like I got a dead pump motor

 

[racerone]

The 82 models should have the 2 wire pump.-----But maybe it has an older system installed.-----Model # of your motor ?-----Have not worked on one in a while .----There may be a thermal protection device that needs contacts cleaned.-----Or simply the brushes need cleaning.-----I would take it apart before investing in a new one.

 

[pastorbud]

Roger that. Model # on the plate is E175TRXCNB

 

[boobie]

When you have the battery hooked up to it and it doesn't work, rap the trim motor with a screw driver handle once and see what happens.