CFD367
New Member
- May 8, 2020
- 2
- Boat Info
- 2002 320 Sundancer
- Engines
- Twin 350 Mags, V Drives, Raw water cooled with flush system
So we bought our 2002 320 Sundancer a few weeks ago and had about a 5 hour ride to bring her home. Boat ran great, we where getting close and I throttled down and shortly after I heard an audible beep and the RPMs on starboard motor dropped like it was going to stall, but I brought it back up and it was fine, this happened probably twice in 15 minutes and then didnt have a problem when I was docking. Next day we went out and had a knocking in the transmission, starboard stalled on me once. Tranny was done this season before I bought it so I was nervous about that. Come to find out the low idle knocking is a fairly common issue thank god. I started to diagnose and couldnt get any change from engine when I pulled the wire from number 8 cylinder. I pulled the plugs, 8 was wet from what appeared and smelt like fuel, 4,6 had some rust on the ends by the last threads the rest looked good. Pulled the riser and there was probaly 2-3 tablespoons of water in manifold for #4,6. risers and manifolds looked to be in decent shape other than the little bit of rust now that water got in there. My question is and any input is appreciated, being a raw water cooled boat is it more likely a cylinder head that rotted out and I am getting water from there? Or would it more likely be the manifolds/3inch riser/elbow and gasket that could be leaking?