Macwrench
Seaman Apprentice
- Joined
- Jul 27, 2008
- Messages
- 41
Good Afternoon,
I normally use the search function in a forum and find the answers to all my questions, but this time I'm gonna have to reach out.
I have a '97 Ocean Pro 200 hp (J200TXEUA) that I've had for about a year. I also have the factory shop manual, a good set of tooling, and good working knowledge of many different gasoline engines. I'm not an outboard tech, but I work in a mechanical field.
At the end of last season, my outboard started running on one bank of cylinders which I troubleshot to the power pack. I replaced the power pack at the beginning of this spring and the motor has been running great. I've probably put about 20 hrs on it since the new power pack. A few weeks ago we were going out, engine running great, and I got into a no wake zone. While running slow, the engine died once. I restarted easily and continued to motor on. About a minute later it died again. This time I could not restart it and had to get towed. (thanks Tow Boat US!!)
That night it had no spark and would not start on the hose, includes eliminating the shift switch and the kill switch. Fast forward to today. I've ran through all the tests in the book for the stator and timer base... assuming the power pack is good (new) and here's what I found:
Stator ohms: 980 (good)
Stator output: 120 vac and 125 vac (bad, should be 130+)
Timer base D to D ohms: 230 (good)
Timer base D to starboard A/B/C ohms: 980 (good) / 4K (??) / 990 (good)
Timer base D to port A/B/C ohms: 4K (WTF?) / 980 (good) / 3.8K (huh?)
I swapped to polarity to see if it read different and it had no reading, so those paths have diodes in them or something.
Here's the fun part, after the test I hooked it all back up and it ran for about 10 minutes on the hose. Ran great until I shut it down. Obviously, I'm very gun shy about putting it on the water, but here are my thoughts:
1. Stator and timer base readings are out according to the book, maybe I should replace them. ($250 each and I still don't know if I fixed it)
2. My new power pack is flaking out! (still got warranty. $0, yay!)
3. Could a voltage regulator/rectifier be flaking out when it gets hot causing this? I would think if it failed, then it just wouldn't charge but not sure.
I'm really leaning towards timer base. Even though the stator voltages are low, I thought they either work or don't. Cranking RPM can affect the voltage and I didn't check that, but I was using two batteries.
Guess I need a nudge before I spend the $250. The real question, can a timer base be intermittent?
Thanks a bunch in advance.
Tim
I normally use the search function in a forum and find the answers to all my questions, but this time I'm gonna have to reach out.
I have a '97 Ocean Pro 200 hp (J200TXEUA) that I've had for about a year. I also have the factory shop manual, a good set of tooling, and good working knowledge of many different gasoline engines. I'm not an outboard tech, but I work in a mechanical field.
At the end of last season, my outboard started running on one bank of cylinders which I troubleshot to the power pack. I replaced the power pack at the beginning of this spring and the motor has been running great. I've probably put about 20 hrs on it since the new power pack. A few weeks ago we were going out, engine running great, and I got into a no wake zone. While running slow, the engine died once. I restarted easily and continued to motor on. About a minute later it died again. This time I could not restart it and had to get towed. (thanks Tow Boat US!!)
That night it had no spark and would not start on the hose, includes eliminating the shift switch and the kill switch. Fast forward to today. I've ran through all the tests in the book for the stator and timer base... assuming the power pack is good (new) and here's what I found:
Stator ohms: 980 (good)
Stator output: 120 vac and 125 vac (bad, should be 130+)
Timer base D to D ohms: 230 (good)
Timer base D to starboard A/B/C ohms: 980 (good) / 4K (??) / 990 (good)
Timer base D to port A/B/C ohms: 4K (WTF?) / 980 (good) / 3.8K (huh?)
I swapped to polarity to see if it read different and it had no reading, so those paths have diodes in them or something.
Here's the fun part, after the test I hooked it all back up and it ran for about 10 minutes on the hose. Ran great until I shut it down. Obviously, I'm very gun shy about putting it on the water, but here are my thoughts:
1. Stator and timer base readings are out according to the book, maybe I should replace them. ($250 each and I still don't know if I fixed it)
2. My new power pack is flaking out! (still got warranty. $0, yay!)
3. Could a voltage regulator/rectifier be flaking out when it gets hot causing this? I would think if it failed, then it just wouldn't charge but not sure.
I'm really leaning towards timer base. Even though the stator voltages are low, I thought they either work or don't. Cranking RPM can affect the voltage and I didn't check that, but I was using two batteries.
Guess I need a nudge before I spend the $250. The real question, can a timer base be intermittent?
Thanks a bunch in advance.
Tim
