Wiring a 3 wire trim/tilt pump to throttle handle switch

[Captndrydock]

Depending on how far the wires are ran?? you could use 12g. wire but the 10g would be the best.
When they started using the relays, I had a boat with twin 88/85's both had the system. Got to be more problematic the older it got.
I ended up carrying new relays and butt connectors in my bag of tricks.
The "up" was more of a problem(used more).

Well I'm persuaded and decided to install solenoids. I went with solenoids instead of relays. My best understanding is 3 wire motors were better with the solenoids. And hopefully they are more robust than a relay... All pretty new to me and still learning.

Thanks for your help!

 

[Mc Tool]

The "up" was more of a problem(used more).

How can it go up more times than it goes down ?

 

[jerryjerry05]

It works harder going up, more strain as you trim it up.
Going down is easier on the system.

The 3 wire motors basically the same as the 2
The 2 was used by Johnson/Evinrude/OMC Some Chrysler inboards, Volvo/Chrysler inboards. And many more.

 

[Captndrydock]

It works harder going up, more strain as you trim it up.
Going down is easier on the system.

The 3 wire motors basically the same as the 2
The 2 was used by Johnson/Evinrude/OMC Some Chrysler inboards, Volvo/Chrysler inboards. And many more.

Makes sense. I'm trying to figure out what solenoids to buy at the moment. Still looking for a parts blow up with oem parts to match. Crowley doesn't show trim system exploded view. I'll check Marine Engines next. If you know of the correct solenoid, I'm all ears!

Okay just checked marine engine, they don't show the solenoids. The ones I'm finding are for intermittent use rather than continuous use. Although they say they're for trim tilt... I did find one for continuous use, but I'm still unsure. Any help is much appreciated!

 

[racerone]

BRP--581528---might work.----on Johnson / Evinrude 1975 power trim / tilt systems

 

[Captndrydock]

BRP--581528---might work.----on Johnson / Evinrude 1975 power trim / tilt systems

Thanks, I'll look into it!

 

[Captndrydock]

BRP--581528---might work.----on Johnson / Evinrude 1975 power trim / tilt systems

Well, the more I look into this the more confused I get. The one you recommended is intermittent use, but says it's for trim and starter. Maybe I don't need a continuous use solenoid?

 

[racerone]

Electrical parts are so confusing.----I need to stop giving tips on this stuff !

 

[Captndrydock]

Electrical parts are so confusing.----I need to stop giving tips on this stuff !

Ha, no problem, as far as I can tell it's kind of correct, sort of. Apparently intermittent use is recommended and sold for trim tilt motors, but it's, as best I understand, not ideal. I think I found what I need:

Arco OEM Replacement Solenoid - SW058HD​

Essentially a marine grade continuous duty solenoid. Most options seem to be intermittent, but I suppose they burn out faster. I see no down side to using continuous duty for 30 amps...(?)

​

 

[Nordin]

I would use two regular automotive auxiliary relays (five pin) used for auxiliary lights etc, and two pre wired sockets. These relays can handle 30-40 ampere continuous depending on brand. You only run the T&T for a short time and these relays are cheap to change.

 

[Captndrydock]

Hones

I would use two regular automotive auxiliary relays (five pin) used for auxiliary lights etc, and two pre wired sockets. These relays can handle 30-40 ampere continuous depending on brand. You only run the T&T for a short time and these relays are cheap to change.

I would use two regular automotive auxiliary relays (five pin) used for auxiliary lights etc, and two pre wired sockets. These relays can handle 30-40 ampere continuous depending on brand. You only run the T&T for a short time and these relays are cheap to change.

Yeah, I've been reluctant to use relays because it looks confusing to wire them, whereas the solenoids seem very simple. But I'm open to using relays. Is there an advantage to using relays besides cost?

 

[racerone]

581528 is the proper one !!

 

[Nordin]

The advantage with relays in my opinion is they are cheaper, easier to change and if you are going to mount them under the engine cowl they will need less space.
No they are easy to wire up.
One side of the relay coil to ground the other side from remote control handle switch up/down to either relay.
Hot wire (+) from battery to each common terminals at the relays and blue/green wire from T&T pump to NO (normally open) terminal at relay.
If you have 3 wire pump the common (-) wire (black) should be connected to battery negative terminal.

 

[dingbat]

Ha, no problem, as far as I can tell it's kind of correct, sort of. Apparently intermittent use is recommended and sold for trim tilt motors, but it's, as best I understand, not ideal. I think I found what I need:

Arco OEM Replacement Solenoid - SW058HD​

Essentially a marine grade continuous duty solenoid. Most options seem to be intermittent, but I suppose they burn out faster. I see no down side to using continuous duty for 30 amps...(?)

​

"Continuous duty" is just that.
Circuit stays energized 24/7/365

In your situation, the circuit is only energized when the trim is moving.
Maybe 1-2 minutes per day, tops?

 

[Captndrydock]

"Continuous duty" is just that.
Circuit stays energized 24/7/365

In your situation, the circuit is only energized when the trim is moving.
Maybe 1-2 minutes per day, tops?

Well that idea is apparently open to debate. But I do understand that many trim relays are intermittent duty and operate just fine. Here's what Arco says about it:

ARCO's Tech Tip on Solenoid Types and Circuits​

Many of the remote mount solenoids look identical on the outside. However, they can be very different on the inside. Beside the different internal circuits, these can be rated for continuous duty or intermittent duty use.

Continuous duty solenoids are wound with very fine wire and draw very little amperage. The contacts in continuous duty solenoids will usually have a lower amperage rating than that of the intermittent duty type. These are normally used as tilt trim relays. This type of solenoid can also be used for a variety of applications where a remote relay is needed to power a motor or other device.

Intermittent duty solenoids are wound with much heavier wire and draw more amperage. The contacts have a very high amperage rating. If these stay energized for extended periods of time they heat up and eventually burn out the coil inside the solenoid. This type of solenoid is normally used as a starter motor relay.

 

[racerone]

????----Why is a simple thing like a power trim / tilt solenoid now at post #35 ??----Just proof that 12 volts and wires are not well understood.-----Use the factory solenoid part #581528 and sleep better at night !