I have had my engine
(Yanmar 3JH2) out of the boat
for a couple of years...and installed it recently. All cables
has been replaced and I ditched the old extension wire harness and wired it with my own black and red cables
, marking each of them.
Hooked up the last things yesterday and tried to start it....but no. Nothing. Not a sound. The electric
shutoff switch worked (connected to a actuator)...and the buzzer alarms went on when I turned the key to on....but to start the engine
...Nothing. I then discovered that the cable (negative) going to my relay wasn't connected to the key switch on the panel. That should solve the problem.... Connected it...but still no sound. I took that negative cable and pushed it to the connector next to that stud (which is supposedly closing the circuit when the key is turned). Yes then the engine starts. When I tried to have the key turned to “on” my trick didnt work
...and not when turning to “start”. Only worked when the panel was off.
Second problem...there is NO voltage added to the circuit/battery when engine runs. So is the alternator
dead? Is this causing the engine not to start, some kind safety
When turning the panel to “on” the buzzers starts and oil
pressure and water
temp gauge is going to max. Is that normal?
I had the engine started outside the boat
last year...standing on a pallet. But I never connected any cables between battery
and the alternator
. Did run it a couple of times, but never longer than 10 minutes. Did the alternator got damaged?