SailNet Community - View Single Post - Overpropped; What to do?
View Single Post
Old 01-13-2013
jrd22's Avatar
jrd22 jrd22 is offline
Courtney the Dancer
Join Date: Nov 2000
Location: San Juan Islands., WA, USA
Posts: 3,853
Thanks: 4
Thanked 19 Times in 18 Posts
Rep Power: 15
jrd22 will become famous soon enough
Re: Overpropped; What to do?

Sounds like you are severely overpropped. Your engine is doing the work it was designed to do at 80% of it's rated HP (push the boat at hull speed) at 50% of WOT. That means the engine is working almost at it's maximum (400 rpm below maximum rpm) to move the boat but only has half or less of it's horsepower to work with. Get the prop re-pitched, or a new prop, your engine will thank you (it will last longer and be less prone to blow a head gasket, etc). Call a reputable prop shop and ask them, they'll undoubtedly have horror stories for you.
SV Laurie Anne

1988 Brewer 40 Pilothouse

Reply With Quote Share with Facebook