Monday I got the boat on the water and the MSD box took a shit about 2 mi from Windsor. I got it fire for a second, and it ran for maybe 20 seconds and then hard dead in the water. I unplugged the distributor, and tested the box, the box had a very faint buzz, but ZERO spark when jumping the green and purple wires. Towed it back, and swapped the 6M-2 with a new in box 6M-2L (but left the existing harness). This box now tests good, fires right up on the trailer, figured it was good to go the next day.
Put the boat back on the water the following day, everything seems normal, about 20 min into running down to the dam, it dies, lights out. I was running around 4k, just cruising. She fired right back up again, and I decided it would be wise to head back towards the ramp in case this turned into a repeat from monday. I wanted to find a cove to check all of my connections and terminals, so I ran until I found a decent cove, as I was idling in the cove in gear she died again, same manner, just like you turned the key off, but started right back up. I had it happen a few more times throughout the day, but i stayed somewhat close since I didnt have much faith in the boat at that point.
As i see it the following items are in play, I'm open to any thoughts anyone might have as the likelihood of where to start replacing parts.
MSD 6M-2L (new unit, but maybe its faulty?)
MSD 8560 distributor - unknown age, but maybe the pickup coil is failing? I think I can order a replacement coil assembly
MSD Blaster coil - unknown age, but i've never had intermittent issues with a coil. Its usually all or nothing
key switch - seems to be ok, and I BELIEVE i always saw power on my batt volt gauge, but its a cheap replacement
velvet drive NSS - I dont know if these fail, and if so, how? I'd expect it would be similar to a car where you'd start having it not want to start because it thinks its in gear.
remote starting solenoid - I dont know if these fail, and if so, how?
Put the boat back on the water the following day, everything seems normal, about 20 min into running down to the dam, it dies, lights out. I was running around 4k, just cruising. She fired right back up again, and I decided it would be wise to head back towards the ramp in case this turned into a repeat from monday. I wanted to find a cove to check all of my connections and terminals, so I ran until I found a decent cove, as I was idling in the cove in gear she died again, same manner, just like you turned the key off, but started right back up. I had it happen a few more times throughout the day, but i stayed somewhat close since I didnt have much faith in the boat at that point.
As i see it the following items are in play, I'm open to any thoughts anyone might have as the likelihood of where to start replacing parts.
MSD 6M-2L (new unit, but maybe its faulty?)
MSD 8560 distributor - unknown age, but maybe the pickup coil is failing? I think I can order a replacement coil assembly
MSD Blaster coil - unknown age, but i've never had intermittent issues with a coil. Its usually all or nothing
key switch - seems to be ok, and I BELIEVE i always saw power on my batt volt gauge, but its a cheap replacement
velvet drive NSS - I dont know if these fail, and if so, how? I'd expect it would be similar to a car where you'd start having it not want to start because it thinks its in gear.
remote starting solenoid - I dont know if these fail, and if so, how?
