Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-01-2012, 13:11   #1
Registered User

Join Date: Oct 2011
Posts: 17
Dufour 31

Hey all
Considering a 1975 dufour 31. Anyone have any advice on this boat?
Thanks
__________________

__________________
Rakoerber is offline   Reply With Quote
Old 08-01-2012, 13:58   #2
Registered User
 
Alberto's Avatar

Join Date: Jun 2010
Location: Maryland
Boat: Dufour 34 - Electric propulsion
Posts: 51
Images: 6
Re: dufour 31

I owned a 1973 Dufour Safari, and currently own a 1975 Dufour 34. They are great boats solidly built to high standards (when we bought the 34 we were actually looking for a 31).

Only common problem I know of on Dufours that vintage is soft decks, which are very easy to fix injecting epoxy. I never liked the original Volvo engines...

Alberto
__________________

__________________
Alberto is offline   Reply With Quote
Old 08-01-2012, 18:03   #3
Registered User

Join Date: Oct 2011
Posts: 17
What was it that turned you off about the engine?
__________________
Rakoerber is offline   Reply With Quote
Old 08-01-2012, 18:30   #4
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: dufour 31

Our friend sailed one in the Pacific. He liked the boat a lot. There is also one at the next dock that may be the most sailed boat around. I would give it a chance if the sample is sound and the price right.

b.
__________________
barnakiel is offline   Reply With Quote
Old 08-01-2012, 18:51   #5
Freelance Delivery Skipper..
 
boatman61's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Jan 2010
Location: PORTUGAL
Posts: 20,221
Images: 2
pirate Re: dufour 31

I'd give it a punt...
They're strongly built and pretty decent sailers.. very popular in their day..
__________________


Born To Be Wild
boatman61 is offline   Reply With Quote
Old 08-01-2012, 18:52   #6
Registered User
 
Alberto's Avatar

Join Date: Jun 2010
Location: Maryland
Boat: Dufour 34 - Electric propulsion
Posts: 51
Images: 6
Re: dufour 31

Compared to newer engines they are noisy, vibrate a lot, do not burn clean, spare parts are VERY, VERY expensive and increasingly hard to find, and there are very few good mechanics available for things like calibrating injectors or major overhauls. I replaced the Safari's MD6B with a 1 cylinder Yanmar and the 34's MD2B with electric propulsion, and both were good decisions (both original engines were in bad shape).

Now, if the prospect boat has an engine with good compression, that starts easily in cold weather, and burns without smoke, most likely you'll have plenty of engine hours before needing an overhaul or replacement. They only require minimum care and if you are handy, the most common repairs are simple. And they are reliable when properly maintained. The hand cranking was a nice feature to have if the batteries were depleted.

If the engine has a hard time to cold-start in 50 degrees, have someone check its compression. This applies to Volvos and to any other brand, mostly considering that we are talking of 37 year old engines.

One more thing to consider is that when it is time to re-power, if you switch to a different brand you'll need a new propeller, as Volvos turn the opposite way than the others.

Despite the Volvo, I consider the Dufour 31 a fantastic boat, and I always recommend them to friends in the market.

My 2 cents...
__________________
Alberto is offline   Reply With Quote
Old 08-01-2012, 20:49   #7
Registered User

Join Date: Oct 2011
Posts: 17
Re: dufour 31

Thanks for all of the input.

We gave it a test spin today. Sailed ok in about 8 knots. Slower than what I am used to with Catalina 30's that we race a lot. Anyone know the PHRF of these 31's?

The engine started ok it seemed and did not appear to run rough but I was concerned about the bit of smoke mixed with the exhaust as I have not been used to that with the Yanmars.

Some indicate that Volvos tend to smoke but I would rather be sure before spending some bucks.

Anyone have an idea what a 75 in fair to good condition would go for? I reviewed some from EU but their prices are rediculous high to me for a 31' boat of that age. This one is not too bad but of course has 37 years of wear and tear to deal with.

Thanks again for all input.
__________________
Rakoerber is offline   Reply With Quote
Old 08-01-2012, 20:50   #8
Registered User

Join Date: Oct 2011
Posts: 17
Re: dufour 31

Oh, you also indicate the Volvos run opposite, so then the prop walk is to starboard on this boat?
__________________
Rakoerber is offline   Reply With Quote
Old 08-01-2012, 21:57   #9
Registered User

Join Date: Feb 2010
Location: NW BC Canada
Boat: Dufour35 1982
Posts: 779
Images: 5
Re: dufour 31

I have a Dufour 35 1984 vintage,

Tough strong ocean boat. Rigged to keep going when a catalina is tied to te dock. Displacement is almost 50% in the keel. Heavy yes but not slow.

I am Off to the South Pacific in 18 months. A D35 from the Seattle has just returned from a circumnavigation.

Volvo. Old beast, bloody things are a pain but they work well enough. I have problems with the gearbox; buy secondhand whenever I can. Iy you want to race around the boys you will find faster boats if you want to go past the windard mark try the defour.
__________________
NorthPacific is offline   Reply With Quote
Old 09-01-2012, 06:58   #10
Registered User
 
Alberto's Avatar

Join Date: Jun 2010
Location: Maryland
Boat: Dufour 34 - Electric propulsion
Posts: 51
Images: 6
Re: dufour 31

Quote:
Originally Posted by Rakoerber View Post
Oh, you also indicate the Volvos run opposite, so then the prop walk is to starboard on this boat?
Yes, when in reverse your stern will turn to starboard.
__________________
Alberto is offline   Reply With Quote
Old 09-01-2012, 14:29   #11
Registered User
 
Alberto's Avatar

Join Date: Jun 2010
Location: Maryland
Boat: Dufour 34 - Electric propulsion
Posts: 51
Images: 6
Re: dufour 31

Quote:
Originally Posted by Rakoerber View Post

The engine started ok it seemed and did not appear to run rough but I was concerned about the bit of smoke mixed with the exhaust as I have not been used to that with the Yanmars.

If the engine is cold it will smoke (white smoke is OK, blue smoke is bad). It takes a while to warm up. Also, as these are raw water cooled engines, when in salt water the thermostat rusts and stays open all the time, resulting in the engine not reaching proper operating temperature. Easy to fix.
__________________
Alberto is offline   Reply With Quote
Old 09-01-2012, 14:53   #12
Registered User

Join Date: Feb 2010
Location: NW BC Canada
Boat: Dufour35 1982
Posts: 779
Images: 5
Re: dufour 31

Quote:
Originally Posted by Alberto View Post
If the engine is cold it will smoke (white smoke is OK, blue smoke is bad). It takes a while to warm up. Also, as these are raw water cooled engines, when in salt water the thermostat rusts and stays open all the time, resulting in the engine not reaching proper operating temperature. Easy to fix.
No they can be fresh water cooled as well. As mine is. Smoke they do. Mine needs an injector job. runs and runs but been told loose fitting.
__________________
NorthPacific is offline   Reply With Quote
Old 10-01-2012, 18:25   #13
Registered User

Join Date: Oct 2011
Posts: 17
Thanks all
I will look at it more closely.
__________________

__________________
Rakoerber is offline   Reply With Quote
Reply

Tags
Dufour

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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
Searunner 31 Spreaders Siskiyous Multihull Sailboats 2 21-08-2017 21:45
For Sale: 31' Uniflite Sport Sedan (1970) hpayne Classifieds Archive 2 09-11-2011 07:17
Hallberg-Rassy 31 vs Hallberg-Rassy 31 Monsun ? TheCruisinKitty Monohull Sailboats 2 21-10-2011 08:23
Island Packet 31 for Six Months in the Caribbean ? docinsand Atlantic & the Caribbean 11 27-07-2011 22:09
For Sale: Mariner 31 in Caribbean seacap Classifieds Archive 0 24-05-2011 04:07



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 09:35.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.