71 v4 100hp power tnt question

[JesseNKim]

I bought a motor off of craigslist the motor runs perfect already installed however I am lost with the power tilt and trim I have a power tilt and trim unit already installed it has a 3 prong connector coming from it looks like this
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and a nother 2 wires that connects to it perfectly that has a green in a blue wire coming from it and 1 more with a circle on it in that looks like it belongs to the battery because it is back there and shorter my question is where do I hook this stuff up to I know I need a switch but what do I hook to the switch or do I need some solenoids?? like I said it is a 1971 johnson 100 horsepower v 4 it is the original power tilt and trim unit thanks for any advice and anything you may need just ask.

 

[emdsapmgr]

Re: 71 v4 100hp power tnt question

You can look at the original factory exploded parts diagram on the factory website: epc.brp.com. It may be of some help. You will have to go the the OB Accesories tab, then down to 1973 and look in the electrical section to see the real trim system parts diagram. Don't confuse it with the "tilt only" systems listed there. Hopefully the diagram looks like your unit. Your motor is the early 3-wire type. I don't see a soleniod on this parts list, so all the current (both up and down) must go through that rocker switch.

 

[jimmbo]

Re: 71 v4 100hp power tnt question

If it is a 1971 engine it cannot have tilt and trim. Power trim was not introduced on OMC engines until 1973. It cannot be retrofitted either. A 1971 motor could have power tilt as an option, which will hold the engine up at near idle speeds, but as soon as the throttle is advanced the the increased thrust over powers the hydralics and the motor drops till it meets the tilt pin.

 

[JesseNKim]

Re: 71 v4 100hp power tnt question

Im so sorry your exactly right . It has power tilt only which is really all i need because its on a pontoon boat but how do i hook up the switch i can connect the black wire to the ground on battery and touch green to positive and it will go down but blue wire does nothing?? maybe a relay needed??

 

[JesseNKim]

Re: 71 v4 100hp power tnt question

also I found on ebay a 3 wire to 2 wire conversion kits with relays would that work the system and get it going??

 

[toey77]

Re: 71 v4 100hp power tnt question

i also have the same motor with power tilt, basically its just a reverse polarity motor, the black is negative the other to are a positive this set up doesn't require a relay i was told just a 3 position toggle switch, by swapping power to either of the positives will make it either raise or lower, well its working for me

 

[JB]

Re: 71 v4 100hp power tnt question

Rule #12. Please do not post to threads that have been inactive for more than 3 months UN-LESS you are the original poster. We have very active forums and any thread that remains inactive for that long should be considered "dead". It is especially confusing when there is an entirely new question posted to an old thread. This is considered a hijack. Please start a new thread of your own.