Go Back   Cruiser Log World Cruising & Sailing Forums > Cruising Forums > The Bosun's Locker > Engines | Propulsion | Generators
Cruiser Wiki Click Here to Login

Join Cruiser Log Today

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-09-2009, 02:24 AM   #1
Ensign
 
Join Date: Mar 2009
Posts: 5
Default

Hi,

I am considering repowering my 17,000lb Pearson 39 Yawl. She has an original Westerbeke 4-91 that is very tired and overheats. Considering Yanmar 40hp or Vetus.

Any other suggestions appreciated.

Mostly local cruising (Chesapeake Bay) and some offshore. (single handed mostly)

Thanks

Cheers,

Alan
__________________

__________________
redcobra is offline   Reply With Quote
Old 03-09-2009, 10:59 AM   #2
Admiral
 
MMNETSEA's Avatar
 
Join Date: Oct 2004
Posts: 3,067
Default

Welcome Alan,,

Depending how much is space available , and that means all the critical measurements , replacing a 30 HP engine with another needs some thought :-

Naturally aspirated vs.. Turbo ?

Good torque at around 1700 rpm = motorsailing/cruising ?

Existing transmission ?

Method of Prop-shaft Coupling ?

etc....

Richard
__________________

__________________
MMNETSEA is offline   Reply With Quote
Old 03-09-2009, 11:56 AM   #3
Moderator
 
delatbabel's Avatar
 
Join Date: Jul 2007
Posts: 700
Send a message via AIM to delatbabel
Default

I have a Vetus, older model P.409 based on the Peugeot engine (newer ones are marinised Mitsubishis). Very nice running, quiet, and relatively lean on fuel for a 52HP.

Have you considered going electric? There's been some good articles recently about the newer electric engines and if you're looking at a complete repower then it's not that much more expensive than going diesel, at significantly less weight and space used. You end up with much less weight of engine, some of which of course is used up by more batteries and genset, etc, but you end up with much quieter running as well. Having done the research I have pretty much decided on going electric when my Vetus gives up the ghost which hopefully will be a good few years yet.

If you mostly do coastal cruising and can hook up to shore power for long periods then electric is the business.
__________________
= New South Wales, Queensland,
delatbabel is offline   Reply With Quote
Old 03-11-2009, 02:22 AM   #4
Ensign
 
Join Date: Mar 2009
Posts: 5
Default

Thank you Richard.

Plenty of Room as the Westy is a big engine. Have plenty of width too. The 4-91 was actually rated at 25hp in 1975. Some cruising the East Coast is planned. Plan to use a three bladed feathering prop. Currently use and will still need to use a Walters V-Drive, but will use new tranny. As I look further into this I am considering either a Vetus (33hp or 42 hp) or Yanmar (29hp or 39hp). I sail when I can and use the Iron Wind as necessary as sometimes you are going North on the Bay in a heavy chop against the tide with the wind funneling straight down the bay at 15-20 knots. Other times (August) there may be <5 knots of wind and a 3 knot current so I end up going backwards

I also have access to Westerbeke/Universal, Volvo-Penta, Nanni, Kubota, etc. Just about anything is available in Annapolis.

Thanks for any advice.

delatbabel: Where can I find info on Electric? Always willing to look.

Best to all,

Alan
__________________
redcobra is offline   Reply With Quote
Old 03-11-2009, 12:20 PM   #5
Moderator
 
delatbabel's Avatar
 
Join Date: Jul 2007
Posts: 700
Send a message via AIM to delatbabel
Default

I'll gather some sources and put up a page on the Cruising Wiki.
__________________
= New South Wales, Queensland,
delatbabel is offline   Reply With Quote
Reply

Tags
pearson


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yawl We Need Help K35auxiliary General Cruising Forum 28 04-19-2013 10:00 PM
48' Yawl Sailing Newport To Miami Sept. To Nov. albertdiran Cruising Crew Wanted 4 11-02-2009 10:00 AM
Hello From Al And Linda The Yawl Bonnie albertdiran The Tavern | Welcome Aboard 3 08-05-2009 09:38 AM
Time To Repower Byamee Engines | Propulsion | Generators 3 07-20-2009 12:09 PM
Yawl, Ketch, Sloop, Cutter, Yacht, Schooner -defs cherrick@spamcop.net General Cruising Forum 1 07-29-2005 09:15 AM

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


All times are GMT. The time now is 09:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.0
×