I'm having a similar issue on my Beneteau 440 and was looking for some help too. I've just changed from the Perkins you have to a Yanmar 54 and its not allowing me to take the revs over 2200 (she should be a 3200).
Im in Slovakia and boat is in Fort Lauderdale and I have had the boat pulled in my absence in the past and found they overrun and cost a fortune unless I'm there. I dont want to loose 3 days whilst they pull her, take the old prop off and get a new one sorted so asked for one to be made up for me ready to install myself underwater on my next trip in 2 weeks when I go to the Bahamas.
I've been quoted $1200 and a 4-6wk delivery time! Fella, if I do get mine sorted, your welcome to the old prop.. Can anyone advise what I need. Its on a 30mm shaft just to add to my woes!
Wow thanks a lot ..... I believe there are places where you can give them the boats displacement, hp, revs etc. And they tell you the specs on the prop. I would rather try the old way.....find someone that has already matched the prop-boat-engine.
How was your experience with the 4108. Mine was recently rebuilt, runs fine but smokes a lot upon startup and when at idle.
Avasquez, contact Gori props in the USA they will tell you what to get, and while you're at it, get a 2 blade folding prop..you'll love it.
Click on contacts select your country. They will tell you what to get and recommend a size. They did it with me on a boat with few specs. They calculate based on Engine, lenght, displacment etc.
I have a racing folding one, but you can get a regular folding prop.
Congratulations on buying the First 456--we just competed a 12 year circumnavigation in ours.
With the perkins 4108 and a hurth 2.74 transmission we are using a 20" 3-blade Maxprop, set to a pitch angle of 22 degrees or 15.1", whereas Maxprop recommended 20 degrees or 13.7" pitch.
The Maxprop isn't cheap, but its adjustable, and the feathering feature really improves sailing performance.
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..... I believe there are places where you can give them the boats displacement, hp, revs etc. And they tell you the specs on the prop. I would rather try the old way.....find someone that has already matched the prop-boat-engine.
