As my 3.0 Mercruiser 1996 gets warmed up it starts ticking and rattling. Great thread last year: http://forums.iboats.com/forum/engine-repair-and-maintenance/mercruiser-i-o-inboard-engines-outdrives/10139104-mercruiser-3-0-140-engine-knock-ticking-noise
Any video links and/or further ideas...
