On my way to Sark on saturday, saw someone I knew, went alongside him and gave the motors a handful of reverse to stop. (twin Optimax 225)
The moment I did this, the starboard motor started to rattle really loudly. Wondering what I had done I stopped the motor, took off the cowl and had a look around for anything unusual.
All looked ok so I restarted the motor and had a look to see if I could find where the noise was coming from. Couldnt tell much except it seemed to be internal.
Nothing much I could do so refitted the cowl and carried on. Sometimes, under load, the noise would almost dissappear but after a further 40 miles or so before I got home it didnt get any better or worse.
I figure if it was a big end bearing that had spun etc., it would've completely destroyed itself by the time I got home so maybe the lower crankshaft bearing? Any other ideas anyone?