Just purchased an 1987 O'Day 302 3 weeks ago.
First time I took it sailing, I had 20 knot winds. With only the jib I was doing 6.5 knots.
Exhilarating, but when boat speed surpassed 5 knots, a banging noise can be heard under the hull ....
I do not hear the noise while under power.... (shaft bearing or prop?)
Why is my power speed limited to 5.5 knots? Is it the prop? I assumed most boats do 6.5 knots under power. 1 knot is not a big difference, but it became an issue as I crossed FL on the canals.
My whole boat rattles when the engine is at idle (500 rpm). As soon as I give it gas, it starts running smoothly without any rattling. Bad shock absorbers would make it rattle all the time, not just at idle.
The bottom is in decent condition, and I don't want to haul it out unless necessary.
I listed all 3 problems because they may be linked...
Any suggestions are greatly appreciated.
Do you have a folding prop? Id look for a bad or loose blade...the banging while undersail could be loose blade banging around down there.. when your sailing, with the engine off, where is your gear selector? In nuetral, forward, or reverse? Id suggest putting it in reverse..