Motodox
Seaman Apprentice
- Joined
- Sep 7, 2015
- Messages
- 42
Ok im starting a new thread to for clarity on my issue, I've also performed multiply troubleshooting and still no luck, I'm lost at this point and really need to figure this out! Thanks in advance.
We have 1986 Rinker v170 open bow boat with. 3.0l 140hp mercruiser 4cyl with alpha1 out drive.
Been converted to electronic ignition over a year ago with the flame thrower coil and the same brand ignitor.
Boat ran perfect all day then died on water and will not restart!
Troubleshooting performed :
Compression tested all cylinder I'm 135 psi or more
Checked timming at TDC on compression stroke #1 cyl. Notch on crank bell is sitting on 0 and under cap the rotor is pointing right at #1 cylinder wire. So timing should be good correct (as far as I know)
I have 7.89 volts at the coil touching the + and -
I actually do see a spark on the plug just doesn't seem like much
With the air breather off I can pump the throttle and visually see two streams of fuel dumping into carb. Plugs even pull out and smell of fuel and are wet after several attempts to start.
Replaced plugs mr43t delcos with .035 gap
I checked the shift interrupt and it seems to be sitting in the right position and it grounds out when you press it in.
I have a good strong battery sitting in a tender and fresh fuel
Everything works on the boat still, gauges lights pumps blower etc. just won't fire and run.
At this point I don't know what else to do, I have spark fuel air compression and timing has been checked. What am I missing!?!? This motor has ran great for me all year! Might I add I've changed fuel filter and cleaned screen in carb this year as well.
Could I just have too weak of spark, should I replace the electronic ignition kit again coil and ignitor, should I replace wires cap and rotor even tho I do have some sort of spark?![Tired face :tired_face: 😫](https://cdn.jsdelivr.net/joypixels/assets/6.6/png/unicode/64/1f62b.png)
![Loudly crying face :sob: 😭](https://cdn.jsdelivr.net/joypixels/assets/6.6/png/unicode/64/1f62d.png)
![Tired face :tired_face: 😫](https://cdn.jsdelivr.net/joypixels/assets/6.6/png/unicode/64/1f62b.png)
We have 1986 Rinker v170 open bow boat with. 3.0l 140hp mercruiser 4cyl with alpha1 out drive.
Been converted to electronic ignition over a year ago with the flame thrower coil and the same brand ignitor.
Boat ran perfect all day then died on water and will not restart!
Troubleshooting performed :
Compression tested all cylinder I'm 135 psi or more
Checked timming at TDC on compression stroke #1 cyl. Notch on crank bell is sitting on 0 and under cap the rotor is pointing right at #1 cylinder wire. So timing should be good correct (as far as I know)
I have 7.89 volts at the coil touching the + and -
I actually do see a spark on the plug just doesn't seem like much
With the air breather off I can pump the throttle and visually see two streams of fuel dumping into carb. Plugs even pull out and smell of fuel and are wet after several attempts to start.
Replaced plugs mr43t delcos with .035 gap
I checked the shift interrupt and it seems to be sitting in the right position and it grounds out when you press it in.
I have a good strong battery sitting in a tender and fresh fuel
Everything works on the boat still, gauges lights pumps blower etc. just won't fire and run.
At this point I don't know what else to do, I have spark fuel air compression and timing has been checked. What am I missing!?!? This motor has ran great for me all year! Might I add I've changed fuel filter and cleaned screen in carb this year as well.
Could I just have too weak of spark, should I replace the electronic ignition kit again coil and ignitor, should I replace wires cap and rotor even tho I do have some sort of spark?
![Tired face :tired_face: 😫](https://cdn.jsdelivr.net/joypixels/assets/6.6/png/unicode/64/1f62b.png)
![Loudly crying face :sob: 😭](https://cdn.jsdelivr.net/joypixels/assets/6.6/png/unicode/64/1f62d.png)
![Tired face :tired_face: 😫](https://cdn.jsdelivr.net/joypixels/assets/6.6/png/unicode/64/1f62b.png)
Last edited: