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Author Topic:   Evinrude trim/tilt question
JimC posted 07-29-2002 11:32 AM ET (US)   Profile for JimC   Send Email to JimC  
Finally after 2 years of repairs & painting I'm ready to put my 1965 '16 back together. I have a 1983 75hp Evinrude with power trim & tilt that was not hooked up when I aquired my boat. from the control box there are 3 wires comming off the trim tilt switch (red, green & blue) & from the motor there are 4 wires, green & blue connected to a double male plug & 2 blacks connected to a double black plug. I seem to be missing something but I can't figure out what?
Bigshot posted 07-29-2002 11:53 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     

You are missing the relay switch where all the stuff happens. It is a black box that goes under the console. The relay tells the pump to either go forward(up) or backwards(down). Without it you are SOL. Try E-Bay because they are not cheap new.

whalersman posted 07-29-2002 12:22 PM ET (US)     Profile for whalersman  Send Email to whalersman     
Before you buy the "Junction Box", you need to make sure what type of system you have.
2 or 3 wire system?
Look at the Trim & Tilt motor on the Engine Brackets where the wires come out of. If 2 wires are coming out of the Motor then you have the 2 wire system. If 3 wires, then you have the 3 wire system. You need to buy the correct "Junction Box" to match your system. You should also have 2 more black wires coming from the engine brackets which are connected to the Trim Gauge "sending unit". It sounds like you already have these two black wires but make sure where they are connected.
I hope this helps.
where2 posted 07-29-2002 01:03 PM ET (US)     Profile for where2  Send Email to where2     
If all you need is the black box with the relays in it, you can make your own. I pulled the relays out of my black box and stuffed them under the engine cowling where they belong. The relays are not anything special, I could give you a VW part number for them if you wanted. The best ones I've seen were on an Alfa-Romeo. Alfa used them under the hood and did a good job of sealing the bottom end of the relay to keep moisture out. I don't recall whether OMC did any moisture prevention, but since I keep mine warm and dry under the engine cover, I don't worry about them much. The spacing on the plug you have is a common relay size. I'd have to look to see if they were single pole, or double pole.

Let me know if you need more details on how the whole circuit works. I'll look up which system mine uses (2 or 3 wire) and send you a schematic.

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