nathanhawaii
Cadet
- Joined
- Jan 3, 2012
- Messages
- 11
My trim/tilt was working fine before i messed it up. The only problem it had was it "bled down" on its own so I would have to trim up every couple of minutes or so to keep it on plane. This was only when running the engine in the water??? I could travel on the road with the engine up(and not manually locked) with no problems at all. It made no unusual or airy/gurgling noises at all. I figured that maybe there was a bit of air in the system. Now, as i sit with a non working power trim/tilt, i think that the problem may be an internally leaking bypass valve. I'll leave that for the experts to confirm or not. I looked in the manual, and the procedure seemed extremely simple. First thing i did was check the fluid level. When i opened the oil plug, pressurized air popped out and fluid started rapidly spilling out(manual could've warned about that). Ok, so the reservoir was full, good. Next i proceded to the air purging instructions. This is directly from the tohatsu manual "Air purging from the Power Trim and tilt unit. Entrapped air in the power tilt and trim unit will cause poor tilting movement. With the engine mounted on the boat, set the manual release valve to the manual side, and tilt the engine manually up/down 5-6 times wile checking the oil level. When done, close the valve by turning towards the power side." And that's it. It doesnt say anything about the fill plug, so i left it cracked open a bit to let air out.Fluid came out continually as i lifted and dropped it manually. I then closed the fill valve, then the bypass valve, checked the fluid level(which was still full even though a lot of fluid came out) tried to tilt with the switch, and nothing. Motor works fine, but no up/down movement. So i then did the exact same procedure, but with the fill plug closed. During this procedure I could hear gurgling noises at the top and bottom 5% of the range of motion. Also when lifting there was absolutely zero resistance at the entire bottom 80% of the range of motion. I could only feel resistance, fluid filling the cylinder, while lifting at the upper 20% range, and then the gurgling at the top 5% range. When lowering, it was basically the exact opposite. I was stumped and frustrated. So I then tried closing the fill plug when lifting, and opening it when lowering. This seemed to help at one point, then made it a little bit worse. Throughout all of this, I continually checked the fluid level and it was always full and spilling out??? I don?t know what to do now. With the bypass valve closed, I can still move the engine up manually about 80% with no resistance. Did I damage the assembly or did I just inject a ton of air into the system? Why would it ?bleed down? by itself while operating in the water, but not otherwise? What should I do to fix this? Thanks for any and all help!
