To test the motor itself, bypassing the relays and relay wiring, find the two heavy gauge wires that lead to the trim/tilt pump motor. One should be green and the other blue. You will probably be able to find a quick disconnect plug near where the wires exit the outboard engine cover that you can disconnect.
Why won’t my boat motor trim down?
If the tilt and trim motor works fine but the engine won’t raise or lower, slips down when in the raised position or won’t stay trimmed, chances are that the problem is with the hydraulic pump or valve body assembly. If the level is adequate, the problem is most likely with the hydraulic pump.
How do you get air out of tilt and trim?
Then trim the motor up and down, try to add a little more fluid and trim it up and down again. Do this several times to bleed all the air out of the system, and then put the hydraulic fluid fill screw back in, wipe off the excess fluid and your power tilt and trim should work.
Do outboard motors have fuses?
Re: blowning fuse on motor It provides the starter, fuel pump and ECM with power. It has some diodes etc inside and there may be some internal low resistance shorts happening that eventually draw enough current to blow the fuse. This fuse first feeds the key switch, which sends it to all those other places.
How do you test a motor with a battery trim?
Step Three: Attach the positive (RED) battery cable to the positive terminal on the battery. Touch the other end to the blue wire on the motor. As soon as you touch the battery cable to the blue wire, the motor should start to spin clockwise. If the motor fails to spin, then it is defective and needs to be replaced.
Is it bad to leave motor trimmed up?
It isn’t going to hurt anything leaving it in the water in the down position, or trimmed up. This is all personal preference, but if you are going to let the boat sit for a week or two. Well, then in this case it is best to trim the engine up out of the water to avoid that growth issue we talked about earlier.
How do you get air out of tilt trim?
Trim up and deploy the trailer bracket. Crack open the cap for the reservoir to release any trapped air. If the fluid trickles out then your level is fine. Repeat if necessary.
How do you bleed air from a trim pump?
Bleeding: OB tilt/trim units are “self-bleeding” and you should always perform these “purge cycles” even if you don’t need to add any more fluid. To purge/check, remove the tilt lock (if engaged) and cycle the OB down by “jogging” it down, in 3 second bursts. Then rest the motor about 15 seconds.
What can I use instead of power trim fluid?
Dextron ATF is a good substitute for outboard tilt and trim oil, especially since the tilt-trim unit is a hydraulic system. As a substitute, Penzoil company has a marine tilt-and-trim hydraulic fluid that can be used for power steering and tilt-and-trim systems.
What do you do if your boat motor won’t start?
If you have checked the battery switch and charged the batteries, but your boat engine still won’t start, check the battery cables. Make sure the connections that run between the engine and the battery are not loose or corroded. Reconnect or replace any battery cables that have become disconnected or damaged.
