I think I would just give them a call. Surley they have a tech dept and should be small enough co they would be glad to help you out.
Has anyone ever replaced the hydraulic fluid in the actuator on this aftermarket model tilt/trim unit? Mine is starting to make some grinding noises and I have never replaced the fluid. my manual says mystic 2216 hydr oil but i cant find it anywhere. someone please chime in with what kind of oil you used and how hard was it to draina nd replace new fluid. it is gonna be a sob to get to the top nut it looks like. Fill me in!!
I think I would just give them a call. Surley they have a tech dept and should be small enough co they would be glad to help you out.
Proud Member of Team Geezer
Charlie Weaver USN/ENC 1965-1979
I had one of these on a 40 HP Yamaha. The grinding noise "probably" has nothing to do with the oil. In my case, the problem was that a motor magnet had come unglued. Remove the motor and take it to an alternator/starter shop. They can reglue the magnets, and lube the bushings.
In my case, the magnets had also cracked in half. I contacted CMC, and received no assistance other than, buy a new one. Cost was $550. (ouch)
Hope this helps
K
Mystic 2216 is no longer made. The equavilent is SAE 20 or 30 non-detergent. PAGE 6
Fair Winds and Following Seas
Bill H. PTC USN Ret
Chesapeake, Va
Are the magnets on the outboard motor or are you referring to the motor on the cmc tilt/trim unit? Not real mechanical!!
He's talking about the drive motor on your trim unit. If it still tilts up and down I'd check all the pivot points for binding or loose fasteners. Maybe shoot some lube on those points.
Proud Member of Team Geezer
Charlie Weaver USN/ENC 1965-1979
Cray is exactly right. My unit would still trim up and down, but would screech, howl, and grind the entire time. The newer units are designed a little better, more compact, and the electrical components and hydraulic parts are built into one machined block of aluminum.
Just don't expect any parts help from Cmc. I thought I would at least be able to buy a replacement motor, but Cmc only offered support by selling me a new unit.
K
Hydraulic fluid is not like motor oil it. It does not serve as a lubricant for your trim and does not need to be changed. It simply builds pressure. If you're oil resevoir is low you have a leak, in which case is most likely a seal. I'm also leaning towards electrical motor issues if you're hearing a (grinding) noise.
Eatin Ain't Cheatin