Warpa
Well-Known Member
It was fine earlier but think i may have tried to lower it too much on the slipway, would it have a safety cut out? What damage would be caused when trying to lower it if it was hitting the floor?
Mercruiser tilt/trim stopped working
- Thread starter Warpa
- Start date
tinkicker0
Well-Known Member
First of all you need to establish if it is electrical or hydraulic failure. Does the pump run?
Looking at my manual:
There are two fuses, one a 20 amp cylinder fuse in the solenoid signal wire (red). by the solenoid.
Another 110amp fuse is on the solenoid itself. If either has blown the motor will not run.
There are also various pressure relief valves in the system for the hydraulics.
Looking at my manual:
There are two fuses, one a 20 amp cylinder fuse in the solenoid signal wire (red). by the solenoid.
Another 110amp fuse is on the solenoid itself. If either has blown the motor will not run.
There are also various pressure relief valves in the system for the hydraulics.
Warpa
Well-Known Member
It pump doesnt run no, i believe i may have put it under undue strees and it could have blown a fuse. Where are the fuses and pressure release valves situated? I need to get myself a manual.
tinkicker0
Well-Known Member
The fuses as above, the pressure relief valves are in the pump.
If the motor is not running, its an electrical problem.
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Warpa
Well-Known Member
Would this be in the engine compartment or to the side where i have what appears to be the power steering pump, but me being new to this it could be the stern drive pump
tinkicker0
Well-Known Member
Would this be in the engine compartment or to the side where i have what appears to be the power steering pump, but me being new to this it could be the stern drive pump
Ah I see. Don't know your boat but....The pump will usually be located near or on the transom. It will have a clear white oil tank and the motor will be sat vertically.
The solenoid will usually be located next to it and have lots of wires going to it.
It is usually where the power feed for your auxiliary systems bus is taken from too.
I will try find an image
EDIT
The tilt pump and solenoid will look similar to this:
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Baddox
Well-Known Member
When I had a similar problem, it turned out to be caused by a broken relay. Although only one relay was broken, it affected both lifting and lowering because it swapped polarity for the electricity feed to the trim motor.
Warpa
Well-Known Member
Ah I see. Don't know your boat but....The pump will usually be located near or on the transom. It will have a clear white oil tank and the motor will be sat vertically.
The solenoid will usually be located next to it and have lots of wires going to it.
It is usually where the power feed for your auxiliary systems bus is taken from too.
I will try find an image
EDIT
The tilt pump and solenoid will look similar to this:
That image is near identical to what i thought was the power steering, i took a good look at it and couldnt see any fuse on it
Loads of wires, but no fuses from what i could see.Warpa
Well-Known Member
Well that was strange, i took out the inline fuse to check it and it was fine, so got ready to order the main fuse, tries the trim and it works fine Did i cause a 'reset' but removing the fuse and power
Did i cause a 'reset' but removing the fuse and power
tinkicker0
Well-Known Member
Well that was strange, i took out the inline fuse to check it and it was fine, so got ready to order the main fuse, tries the trim and it works fine
More likely a bad contact twixt fuse and holder, you made a better contact when you took the fuse out and put it back.
Taurus66
New Member
Your Pressure relief valve is there in case the system develops a blockage or such like , the valve the returns the oil pressure direct to tank.. or when you hold the trim button down and the leg is on the ground, the valve was already working then..
Elessar
Well-Known Member
If you look at the pic, 2 big wires come into it, 1 into the relays, red, and one to a bolt at the top of the bracket, black. Check for 12v here, if the fuse is blown there won't be.
Then check for 12 v at the dash switch.
If yes to both you need the diagram. I do have it as PDF if no one send it sooner, but not here with me on the boat. Back after the wedding
ian38_39
Well-Known Member
Just had the same on my 290 Volvo drive but it was intermittent and a pig to find.
If it happens again check if the relays are clicking. if they are then it is the main power supply.
Eventually tracked it down to a faulty 55 amp fuse which is housed in a plastic sealed block, I assume because the engines are petrol the plastic is to contain any sparks. The fuse has not blown just broken down over the boats 17 year life.
If it happens again check if the relays are clicking. if they are then it is the main power supply.
Eventually tracked it down to a faulty 55 amp fuse which is housed in a plastic sealed block, I assume because the engines are petrol the plastic is to contain any sparks. The fuse has not blown just broken down over the boats 17 year life.
Warpa
Well-Known Member
I have a marine engineer giving the engine and leg a full service and will fix the problem. thanks for all the replies as i thought i could find this one myself, i probably could if i had a volt tester
