Alaboat
Petty Officer 2nd Class
- Joined
- May 21, 2015
- Messages
- 129
UPDATE... took the boat out yesterday after picking up from shop and all was well; at least I thought so:grumpy: Ran fine cruising for about 30 minutes then it happened again. Died like it wasn't getting fuel. Got it cranked after a few tries and ran slow in a "no wake zone" for about 5 minutes and died again. Did this again another time. So I figured it was troubleshooting time, I had all day. I checked the carb by disconnecting the throttle linkage while engine was off and advancing the throttle manually at the carb. Fuel sprayed into carb like it should. While I was there, I looked at spark plug wires at distributor and didn't like the way they were routed with a little strain on wires so I disconnected one at a time to reroute and give some slack(just anal about stuff like that). Cranked back up and ran about 7 MPH with just enough speed to keep load on engine bow up to see how she ran and potentially pick up any bad fuel or water in tank while doing so. Ran like this for about 40 minutes, then picked up speed to about 22 MPH and 3k RPM's for another 30 minutes or so then picked up speed to about 30 MPH and 3.5k RPM's for another 2 hours or so. I killed the engine 2-3 times during this last several hours and let set several minutes to see if heat buildup while stopped would affect anything. I was never able to get the kill scenario repeat itself again. Total run time yesterday was about 3.5 hours mostly at cruising speed. I'm still scratching my head on this one. A little bad fuel or spark plug wire breaking down? Also talked to mechanic after all of this and he was puzzled as well and said sounds like a coil or other ignition component breaking down when it heats up but that it would be hard to diagnose without catching it in the act. sorry for the long post but maybe someone else can chime in.