- Oct 17, 2016
- West River, MD
- Boat Make
- Shannon Downeast 36, Lyman 26' Hardtop Sleeper, Cape Dory Handy Cat, Boston Whaler Newport
I've got a 3116 in a Nauset 36, finished by Shannon. 3116 was rebuilt but has never been quite right. Engine started life as a 205hp and was remanned to 300hp. Starts fine but doesn't get up to 2800+ rpm. Starts right up but hunts at idle when warm. Have had the rack run multiple times by "authorized Cat" mechanics. Have replaced the governor, Racor filter, oil of course. Prop has had pitch taken out twice. Nauset confirmed that the original 300hp 3116 turning a 22x18 wheel on a 1.5 reduction was the original configuration. Prop is now 22x15. Plan on taking it to another "authorized Cat" mechanic and have them check everything from fuel tank to exhaust. What all do I want to make sure they do to get this engine running right?