Re: Trim/ tilt how to check the oil? Do I have to check oil in lower unit?
I was thinking about my newer boat not the old one, 1987 SeaRay, still Merc, had the 2 switch control for trim and tilt, you should not have to hit the switch twice for it to work the trim, I used to have to hit the trailer button to get mine started working, it eventually quit when I was getting ready to trade it in. We are back to the manual, I am not sure if that is something you can put a relay/switch in or not, the upper portion of the trim pump is the electrical part. If the switch at the control lever is making contact every time then the problem is in the pump section. Get a helper, one to work the switch and one to use a test light at the pump connections, if the light comes on everytime the switch is moved then the problem is in the pump, if not then it is probably the switch. When you find the trim pump, one pump for the two cylinders you see on the drive, you should see a plug in the top of it where you can check the fluid. When you look at the drive on the upper section you will see a big slotted screw head, that is where you check the fluid level in the drive. Look at the bottom of the drive and you will see another one on the bottom and toward the front of the drive, that is where you drain and fill from when it is empty. If just a little low you can add at the top.