Done all of the above. Took it to the mechanic and he is getting code 42 for ignition timing. Changes ignition control module with same result. Still getting code 42. Again, tune up has been completed. Vent is clear, removed anti siphon valve last year as it failed. Any thought on timing issue...
I have a 1998 5.7l mercruiser efi. Don't now the ser# off hand. I'll try to keep this as short as possible. Two weekends ago my boat started idling rough after a 30 minute cruise. Got it to a mooring where it died and wouldn't start for some time. Got it going and planed out back to dock where...
Looking for some help...... my alternator brace bolt had backed out and the belt became very loose. I caught it in time and put a new bolt in. Tightened up the belt and within an hour my belt was splintered. I realized that the alternator pulley was out by 10-15 degrees and now I can't get it...