SoCalFisher
Cadet
- Joined
- Aug 26, 2018
- Messages
- 7
I just recently replaced the alternator on my mid 80s gm 350 inboard. Took the boat out this morning and was cruising to the island. Heard an unfamiliar noise and noticed that the the belt broke and was spraying coolant throughout the engine bay. Luckily I always carry 2 of them as well as most common replaced items. After the engine cooled down about an hour later we were able to put the new belt on.
After the we got everything back together we tried firing her up. It was not the normal 2 cranks and she starts. We notice when we were attempting to turn her over small puffs of steam were coming from the spark arrestor. After the 3rd attempt we were able to get the engine to turn over but only at 2500rpms. No puffs and sounded good. Once we back off the throttle the engine dies.
The previous trip none of the issues were here except the 20yr old alternator. Changed oil last week. No signs of milky oil. Was a bit darker then usual but was clean. Cleaned the spark arrestor during oil change.
Any ideas?
After the we got everything back together we tried firing her up. It was not the normal 2 cranks and she starts. We notice when we were attempting to turn her over small puffs of steam were coming from the spark arrestor. After the 3rd attempt we were able to get the engine to turn over but only at 2500rpms. No puffs and sounded good. Once we back off the throttle the engine dies.
The previous trip none of the issues were here except the 20yr old alternator. Changed oil last week. No signs of milky oil. Was a bit darker then usual but was clean. Cleaned the spark arrestor during oil change.
Any ideas?