bensoldboat
Recruit
- Joined
- Jul 13, 2013
- Messages
- 3
I have a standard ignition 3 liter mercruiser, new factory rebuilt carb, new plugs, condenser, coil, points, wires, and rotor. I have made attempts to replace the gas, but have only gotten about 5 gallons out by putting some air pressure to the vent and running the fuel line out the back. I've seen no water in the five gallons of gas that I've gotten out. Both fuel filters are new. When I'm in it by myself and hit the throttle it starts off strong then stutters for sometime 6 seconds and then takes off like a beast. If I try and run it at 20 miles an hour the engine sounds like its missing at times then takes off and runs right at other times. The timing is set at 6 btdc and I've taken the distributor apart to see if the mechanical advance is loose and it seems to be clean and working right. I have not taken the timing light to see if its advancing as it should while powered up. It does run a little rough at low idle. The wires are in the correct order. I'm thinking I have a stuck lifter. I 've done no compression checks. Any help would be appreciated I at a loss. With three people in the boat it will pull a wakeboarder out but not above 15 mph because the engine is sputtering. Three people in the boat and it stutters and bogs for a little longer than with just myself then finally takes off like a rocket. Thank you for your suggestions....