Bill Foote
Cadet
- Joined
- May 27, 2009
- Messages
- 15
OK, Let me first explain the situation. 1985 Johnson 70hp, ran well all summer and then in Oct/Nov. it started acting up taking a long time to start. So, upon finding that the plugs weren't firing I began troubleshooting. My suspicions led me to the power pack and stator. So, I purchased these 2 items (CDI brand), installed them and bang! back in business.
Since then the boat has been used about 3-4 times flawlessly. Until, last week I tried to fire it up and nothing. No spark. So, back to troubleshooting, here is what I have observed.
1. Stator output: 140V ac
2. Timer base output: .2-.8V ac Also, no continuity between any of the 4 wires on the timer base plug. Shouldn't their be some continuity between the center white wire and the three other wires?
3. Ignition coils: when removed from engine and tested independently they all had consistent resistance, .248-.251ohm's between the posts and ground tab. Also, I noticed that some of the coils have the potting goop bubbling and oozing out of the back of them. It has been my experience in the past that this usually indicates a faulty electrical part.
So, my questions are; Should I have some amount of continuity between any of the timer base wires, and what would cause the coils to ooze as I have described. Though I feel it would be unlikely for all three coils to fail at the exact same time... If the timer base and coils are faulty, is there a chance that they have destroyed my brand new power pack?
Thanks in advance
Since then the boat has been used about 3-4 times flawlessly. Until, last week I tried to fire it up and nothing. No spark. So, back to troubleshooting, here is what I have observed.
1. Stator output: 140V ac
2. Timer base output: .2-.8V ac Also, no continuity between any of the 4 wires on the timer base plug. Shouldn't their be some continuity between the center white wire and the three other wires?
3. Ignition coils: when removed from engine and tested independently they all had consistent resistance, .248-.251ohm's between the posts and ground tab. Also, I noticed that some of the coils have the potting goop bubbling and oozing out of the back of them. It has been my experience in the past that this usually indicates a faulty electrical part.
So, my questions are; Should I have some amount of continuity between any of the timer base wires, and what would cause the coils to ooze as I have described. Though I feel it would be unlikely for all three coils to fail at the exact same time... If the timer base and coils are faulty, is there a chance that they have destroyed my brand new power pack?
Thanks in advance
