Tilt trim motor working but engine won’t move

Sobbleson

Cadet
Joined
May 7, 2022
Messages
13
1978 Johnson 85 hp (85etlr78c). Was out on the water when my tilt trim started acting up. I was raising and lowering the tilt trim a bunch of times and then it basically stopped lifting the engine. Sat in storage for 4 months. Just started working on it again and it looks like a trim cap seal was broken so a bunch of oil leaked out and water got in. I just replaced the cap with a new seal - no more leaking. Topped up hydraulic fluid and bled it, then topped up more.

So my problem: I push the tilt/trim button to raise or lower the motor and I hear the solenoid click as well as the tilt trim motor working (for both up and down). The engine will not lift up. I unscrew the manual release screw on the side, lift the engine, put down the support brackets and screw in the manual release screw. I try the tilt/trim button again and the trim rods will extend and retract but no movement of the tilt rod. I release the support brackets and the engine lowers (with me holding onto it) until it gets to the extended trim rods - they support the weight of the engine. I push the tilt/trim button up, but still no tilt movement (again sounds are coming from tilt/trim motor). I push the tilt/trim button down and the trim rods retract, lowering the engine fully. I try pushing tilt/trim button up again but trim rods won’t lift the engine. I manually lift the engine and the trim rods will extend again now that the engine isn’t on them. I make sure reservoir is filled (it is full, no more air is escaping when I slowly unscrew reservoir fill hole screw). I’ve tried this method a bunch of times and several other combinations to get it to lift the engine, but nothing works. I don’t see hydraulic fluid leaking from anywhere.

Any ideas why it’s not lifting my engine?
 

Sobbleson

Cadet
Joined
May 7, 2022
Messages
13
@saltchuckmatt yes, I drained all I could see before refilling it.

@racerone the tilt trim was giving me issues before there was a couple freezing nights here in Jacksonville Florida. Maybe the freeze made the issue worse?

If the tilt trim motor is spinning, what else in it could have failed for it not to be raising up the engine?
 

Sobbleson

Cadet
Joined
May 7, 2022
Messages
13
It’s working now! I unscrewed the relief screw and manually lifted up the engine. Hydraulic fluid shot out to of the relief hole. I put the screw back in and it started working. I guess I didn’t bleed it correctly/enough before? Any ways, now I need to top up the fluid and get the rest of the bubbles out. So glad it’s working again! Ready to be out on the water
:)


Thanks for the help
:)
 
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