Bypassing trim limit/sending sensors

jonny rotten

Petty Officer 1st Class
Joined
Jan 8, 2012
Messages
345
Having issues changing my trim limit/sending sensors. Think I'm going to eliminate them as I've been using the boat forever without them working anyway and just going by feel.

If I just connect the buttlett connectors on both the limit and sending wires near the engine will they operate correctly with the switch?

Are the sensors just for the gauges or will running a jumper effect how they work with the switch?

Do I even need to run a jumper ot will taping them off suffice?

Mercruiser Alpha one if that makes any difference
 
Last edited:

alldodge

Moderator
Staff member
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Mar 8, 2009
Messages
42,064
No issue with not having a limit, I don't have one (at least on the drive Admiral says I have one :facepalm: but that's getting off topic :D ) Just connect the two wires going to the limit together, then no longer need a trailer switch

Now the gauge has one wire from gauge to sender, and another from sender to ground. No issue with disconnecting
 

Bondo

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Staff member
Joined
Apr 17, 2002
Messages
70,958
Ayuh,..... Ditto,..... I did the same years ago, by-passed the limit switch at the back of the motor,......

Sender don't matter,....
 

jonny rotten

Petty Officer 1st Class
Joined
Jan 8, 2012
Messages
345
No issue with not having a limit, I don't have one (at least on the drive Admiral says I have one :facepalm: but that's getting off topic :D ) Just connect the two wires going to the limit together, then no longer need a trailer switch

Now the gauge has one wire from gauge to sender, and another from sender to ground. No issue with disconnecting

Ok. So anything on the sender side disregard? Disconnect bullets at motor and tape off NO JUMPER between them?
On the limit side disconnect bullets by motor and connect them with a jumper.....done....correct?
 

shrew

Lieutenant
Joined
Dec 29, 2006
Messages
1,309
Technically, the drive will more than likely cavitate before you hit the limit anyway. If not, then as soon as you start cavitating, trim in until it stops.
 
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