Hi boys, I'm venetian ( italian
for the moment), presently I am in Mount Shasta CA for few days. I have been offered a Sea Ranger 53 - I don't really understand what's the name of shipyard : King Yachts? C&L?... mistery) - a model marketed in France and Italy in the 80ties , anyway the line - streamlined - is the same of the 47 like this: http://www.trawlerforum.com/forums/s...47-a-4775.html
, in my opinion is the same hull, they just changed the name from 47 to 53 for marketing reasons.
This is the boat: https://drive.google.com/drive/folde...ULr2XRwcEo7eRS
she has been neglected for some time and one of the GM-Detroit-6V92-550 hp is K.O.in need of desembarc for major overhaul, this is why they ask some $ 60.000 for the boat, an attractive price. The rest is the usual sequele of refitting work: teak deck with screws, leakage of windows and relevant wood panelry to revarnish, a mess in engine room...
the main theme is re-powering: they marketed a cheap trawler with planing capability at 19 knots in that period where almost only GM had engines in the 500 hp range at cheap price, and such engines are very big and bulky for the V structure of the block, if you see the pictures of the engine room there is no room between the engines. They are very heavy and the tanks of fuee they need, are very heavy and big, circa 3 tons of fuel.
to rebuild the GM is about $ 17,000 and I have no intention to go that way, I prefer discard the planing capability and go for a displacement speed of 8/9 knots and maybe keep a reserve of power for a semi-planing of 12 knots, for this I've seen a fantastic Fiat-Aifo engine used in every application in the 80ties, the CP3 or 8361M. The basic engine is a 8 liters straight 6 with 160 hp, with the turbo is 270 hp and this is what I found :
Motore fiat cp3 270 cv - Treviso Veneto Motori marini usati | annuncimacchinariusati.com
is very compact and reliable, find pieces everywhere. One feature is that you can discard the turbo, re-rate the injection pump and it goes as a naturally aspirated @ 160 hp.
What is your opinion or experience in this model of boat and my re-powering plan? Nota Bene: all the operation to change with the Aifos costs the same money to refit the GM.
Regards - Diego