Hi, I am a new boat owner and I just purchased a 1986 Century Mirada. It sounded great when I ran it in the driveway on a pair of muffs, I took it out on the lake with 5 people and couldn't get it to plane out. After doing some reading, I took it out by myself and I got it to plane out by putting the trim tabs down once I gained some speed. I ran it for about 30 min, keeping an eye on all the gauges, listening for anything out of the ordinary, all seemed good. Took it out the next weekend with 5 people again and couldn't get it to plane out on the first try. I moved to people to the cabin and tried again, it plained out. I moved them back to the rear as we were plained out and continued running full throttle for about 20 min, then I noticed it starting to slow down slightly, I backed off the throttle almost completely and it shut down! The temp gauge was nearly all the way to the hottest point, I didn't take note of the temp. I checked the oil dipstick while I was on the water and it was just above ADD. I tried to restart when the temp. got down to about 3/4 and it would try but wouldn't start. Got towed back and now its sitting in the slip on a hoist. Im going down this weekend to do some troubleshooting, about a three hour trip, so I want to know what would be best/smartest things to check out in what order.
Do you think the poor planing could have anything to do do from a problem with the cooling system? Its freshwater cooled.
From what I have gathered, it originally game with a mercruiser 260hp, it was replaced with a mercruiser 350 in 08.
Transom rebuilt at marina few years ago. Motor replaced with Indmar 5.7 vortec.
Last year: new plugs, wires, fuel pump, cap, rotor, ignition control module, ignition pickup and distributor shaft and belts.
New this year: water pump in lower unit and thermostat, new/used prop 15x15 he thinks..
Ill try and post the pics I have
Thanks in advance,
Ryan
Do you think the poor planing could have anything to do do from a problem with the cooling system? Its freshwater cooled.
From what I have gathered, it originally game with a mercruiser 260hp, it was replaced with a mercruiser 350 in 08.
Transom rebuilt at marina few years ago. Motor replaced with Indmar 5.7 vortec.
Last year: new plugs, wires, fuel pump, cap, rotor, ignition control module, ignition pickup and distributor shaft and belts.
New this year: water pump in lower unit and thermostat, new/used prop 15x15 he thinks..
Ill try and post the pics I have
Thanks in advance,
Ryan
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