"This problem is occuring on m
"This problem is occuring on my 97 Sea Ray 330EC with twin 7.4 Mercs (500 hours).
At cruising speed (2500-3600 RPMs) the port engine losses sync (I am guessing 25-50 RPMs I can hear the change and see it on the sync guage) for about 15 seconds and then regains the synced RPMs. This occurs very intermittently - sometimes I can run for an hour without an issue, at other times this will occur every few minutes. This problem started the beginning of last season and seems to be occurring with more frequency over time. I have replaced plugs, wires, rotor, cap, fuel filter.
Any insight is greatly appreciated."
"This problem is occuring on my 97 Sea Ray 330EC with twin 7.4 Mercs (500 hours).
At cruising speed (2500-3600 RPMs) the port engine losses sync (I am guessing 25-50 RPMs I can hear the change and see it on the sync guage) for about 15 seconds and then regains the synced RPMs. This occurs very intermittently - sometimes I can run for an hour without an issue, at other times this will occur every few minutes. This problem started the beginning of last season and seems to be occurring with more frequency over time. I have replaced plugs, wires, rotor, cap, fuel filter.
Any insight is greatly appreciated."