Monsun 31 new engine

[homa]

I have just ordered a new Beta 28hp as a replacement for the original Volvo 23hp in my Monsun 31. (Hull no. 759, year 1979.)
I made a plywood replica of the Beta to ensure space.
My only question is what is inside the fibreglass bearers. I am guessing at some kind of steel plate. The original Volvo mounts are fixed down by threaded studs. If the bearers have steel inserts. Has anyone else re-engined their Monsun 31 ? If so how were the engine mounts fixed down ?
Without drilling holes into the bearers I do not know their make up.
Any help advice welcome.

 

[pvb]

Try this...

You could, as you suggest, just drill a series of small holes into the bearers to find out where the reinforcement is.

Alternatively, if you visit the <A target="_blank" HREF=http://www.classic-hrs.com/index.html>Classic Hallberg Rassy website</A> and go to the Monsun 31 section, you'll find e-mail addresses of a number of owners who have re-engined. On the same site, the Cyber Boatyard section may have useful info.

Another possibility would be the UK <A target="_blank" HREF=http://www.hroa.co.uk/>Hallberg Rassy Owners' Association website</A> - go to Discussions and post a new question.

 

[homa]

Re: Try this...

Thanks for the 2 contact sites.
I had already tried the Classic hrs site & posted a query. Have just posted on the owners assoc. I don't hold out much hope for a quick reply from either.
I want to install the engine in a couple of weeks time.
I think my best chance will be Halberg Rassey sweden, and hope to contact someone who remembers how they were constructed.

 

[stevebirch2002]

There was a monsun 31 that had a new engine fitted at Poole two years ago. I had a look at her as I was trying to buy a Monsun 31. It may be an idea to contact the engine people at Arthur Brays Yard - I dont know their name. I sail a Monsun 31 evry year in Denmark and last year I completed a round Sealand cruise in on including winds to F9 (from behind!). There is also a Monsun in Fort William that has a new Volvo and the owner is called Chris Carver as I was thinking of buying that one as well so perhaps ask him, again no prhone number but he runs holiday chalets near Fort William.

Albin Vega "Southern Comfort" V1703