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Ted G.
Ted G., Rigger, Diagnostician
Category: Boat
Satisfied Customers: 6159
Experience:  40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness
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I just bought a 06 tracker Tahoe 4.3 mercruiser. First time

Customer Question

I just bought a 06 tracker Tahoe 4.3 mercruiser . First time own a boat and my rpm were max out on gauge when throttle down. Didn't know if that was suppose to be like that.
JA: Sometimes boat issues seem like they'll be really complicated, but end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so the Marine Mechanic can help you best.
Customer: High rpm when in gear don't know if that's suppose to be like that. First time owning a boat
JA: Is there anything else the Marine Mechanic should be aware of?
Customer: Also had water in the storage on deck
Submitted: 2 months ago.
Category: Boat
Expert:  Ted G. replied 2 months ago.

You are correct, the boat should be propped so the engine runs about 4800 RPM at WOT with a normal load. Anything over 5200 and it should be rev limiting. Either your prop is too small, damaged, or possibly has a spun hub.