CC Searay 81
New Member
- Jul 25, 2010
- 9
- Boat Info
- 21 Foot 1980 Searay CC
260 Mercruiser
- Engines
- 1980 260 Mercruiser Bored 30, Edelbrock High Rise, Quadrajet 4 Barrel
Pre Alpha Outdrive
I accidently overfilled my 1980 260 Mercruiser with about a quart too much oil! Before I knew it, I took the boat out and
ran fine for about 10-15 minutes. Then it felt like it didnt have the power. Limped back to trailer. Replaced cap rotor plugs wires. Still loss of power. I started pulling plug wires from cap 1 at a time and found 5 & 7 did not change on or off! Then I pulled the valve cover on that side and found a foamy moisture looking film all over everything! But when I pull the dip stick the oil is clean and clear? I found out through reading threads there is suppose to be a water shutter in the bottom of the Y pipe to keep water from being forced in exhaust by fast stops! If my water shutter was malfunctioning or gone, could I have sucked water up in the back two cylinders 5-7 on that side? or is the cream looking film all over the head from too much oil in the crankcase?
Motor is not noisy or rattling? Thanks in advance to anyone with some insight on where to go from here? :smt100
ran fine for about 10-15 minutes. Then it felt like it didnt have the power. Limped back to trailer. Replaced cap rotor plugs wires. Still loss of power. I started pulling plug wires from cap 1 at a time and found 5 & 7 did not change on or off! Then I pulled the valve cover on that side and found a foamy moisture looking film all over everything! But when I pull the dip stick the oil is clean and clear? I found out through reading threads there is suppose to be a water shutter in the bottom of the Y pipe to keep water from being forced in exhaust by fast stops! If my water shutter was malfunctioning or gone, could I have sucked water up in the back two cylinders 5-7 on that side? or is the cream looking film all over the head from too much oil in the crankcase?
Motor is not noisy or rattling? Thanks in advance to anyone with some insight on where to go from here? :smt100