silversuby
Cadet
- Joined
- Aug 28, 2011
- Messages
- 13
After a 30 minute pleasure ride; I stopped at a dock to switch passengers. I was idling for about 10 minutes while tied to the dock. I idled away from the dock, and put the sterndrive down. When I gave it some throttle; the sterndrive came back up on it's own.
I stopped; tried it again; same deal. After fighting with it a bit, I headed back to shore. By the time I made it, the stern drive would NOT go back up (yes, I tried the trailer switch too). My passengers and I did smell electrical burning on the water. I had to pull it out and raise the drive manually to get home.
After getting home, I did some diagnosing and here's where I sit.
I can put the sterndrive down.
The trailer trim switch, nor the throttle switch work for up. I did NOT hear clicking when I hit the up switch (either one). Easy fix, right?
I CAN get the sterndrive to raise if I bypass the solenoid (jump 12 volts directly to the green/white wire.
I replaced the solenoid, but still no go. The new solenoid clicks, but no motor noise. I then swapped the new solenoid with the down one, and the drive did lower. So, the new solenoid obviously works.
I measured with a volt meter; and I DO see 12volts at the green/white wire. This Green/White wire goes directly into the power trim motor.
I've removed the motor and the solenoids from the boat now, because I was about to start ripping it apart when I figured a quick post couldn't hurt. If you look at Mercruiser Service Manual #6, I have the Oildyne Power Trim Pump (with aluminum reservoir) [section 5b]. If anyone knows the actual model number of this; that would be helpful. The number I pulled off the side is somewhat unreadable and doesn't seem to be close to any existing part numbers [08183711].
It almost sounds to me at this point as though the motor is require too many amps to run in "up" mode. But, that confuses me b/c this is just a single motor with forward and reverse, isn't it? So, I'm hoping someone else out there has had a similar issue.
Assumptions I made: I'm getting 12v when I flip either switch; so I'm assuming the wiring is good in the front half of the boat. The trailer switch, nor the throttle switch are working; so I'm ignoring the trim limit switch from this equation.
Thanks in advance for any thoughts!
I stopped; tried it again; same deal. After fighting with it a bit, I headed back to shore. By the time I made it, the stern drive would NOT go back up (yes, I tried the trailer switch too). My passengers and I did smell electrical burning on the water. I had to pull it out and raise the drive manually to get home.
After getting home, I did some diagnosing and here's where I sit.
I can put the sterndrive down.
The trailer trim switch, nor the throttle switch work for up. I did NOT hear clicking when I hit the up switch (either one). Easy fix, right?
I CAN get the sterndrive to raise if I bypass the solenoid (jump 12 volts directly to the green/white wire.
I replaced the solenoid, but still no go. The new solenoid clicks, but no motor noise. I then swapped the new solenoid with the down one, and the drive did lower. So, the new solenoid obviously works.
I measured with a volt meter; and I DO see 12volts at the green/white wire. This Green/White wire goes directly into the power trim motor.
I've removed the motor and the solenoids from the boat now, because I was about to start ripping it apart when I figured a quick post couldn't hurt. If you look at Mercruiser Service Manual #6, I have the Oildyne Power Trim Pump (with aluminum reservoir) [section 5b]. If anyone knows the actual model number of this; that would be helpful. The number I pulled off the side is somewhat unreadable and doesn't seem to be close to any existing part numbers [08183711].
It almost sounds to me at this point as though the motor is require too many amps to run in "up" mode. But, that confuses me b/c this is just a single motor with forward and reverse, isn't it? So, I'm hoping someone else out there has had a similar issue.
Assumptions I made: I'm getting 12v when I flip either switch; so I'm assuming the wiring is good in the front half of the boat. The trailer switch, nor the throttle switch are working; so I'm ignoring the trim limit switch from this equation.
Thanks in advance for any thoughts!
