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[email protected] 08-16-2019 09:47 AM

Engine for 1976 Bristol 30
I have a Bristol 30, 1976 Hull #174 with a BUKH Diesel. Can anyone advise which is the correct fit in the Atomic 4 line? Or other least cost solution for engine replacement. BUKH is under sized and blew a head and exhaust manifold gasket.
R Dagelen

drew1711 08-16-2019 10:15 AM

Re: Engine for 1976 Bristol 30
Lowest cost will be to install an outboard on the transom. Beta Marine makes Atomic 4 replacement diesels in different power configurations. Maybe you can find a used one...

Atomic Four Replacement - Beta Marine diesel engine using high performance Kubota diesel, Atomic Four, atomic 4, repowering

JimsCAL 08-16-2019 10:48 AM

Re: Engine for 1976 Bristol 30
A new diesel is going to cost a substantial portion of the value of your boat. Are your sure your current engine isn't worth rebuilding? How did it run prior to the gaskets failing?

contrarian 08-16-2019 01:03 PM

Re: Engine for 1976 Bristol 30
I would look for a remanufactured engine over a rebuild. Yanmar 2gm20 would probably be a good fit and they are available through Yanmar Reman. You can also look at Diesel Engine Trader to see what's available through them. Either way you would be in the $4500-$5500 range.The Bristol 30 is probably too big for an outboard to function properly but if it's just a day sailor you could probably get by with a 15 horse outboard. The 9.9 high thrust might work for getting in and out of a slip but would be under powered for much else. I did see an article in one of the sailing magazines several years back about a fellow who built an outboard well in the cockpit of a boat similar to the Bristol but I don't recall what the reasoning of it was. Seemed to me to be too much work for too little benefit.

deniseO30 08-16-2019 01:20 PM

Re: Engine for 1976 Bristol 30
Don't know where you're at it's not even in your profile but there's one on eBay.

I can't imagine any diesel sailboat engine being rocket science to install where your diesel was the biggest issue is angle of the engine transmission and the prop shaft alignment.

How far and how long you shop will determine thr hundreds of dollars in savings with the literal thousands and thousands of wrecked sailboats from the various storms over the last few years, there has to be plenty of you good diesels out there! how to find them, is the mystery..

contrarian 08-16-2019 01:54 PM

Re: Engine for 1976 Bristol 30
Good Find Denise!!!

roverhi 08-16-2019 04:30 PM

Re: Engine for 1976 Bristol 30
There's a 3GM30 Yanmar take out on San Diego or Orange County Craig's List. More power than you need for a 30' boat but it's a pretty compact engine.

Denise's Bukh find looks like a good opportunity but at 36hp is way more engine than a 30' boat needs.

Minnewaska 08-16-2019 07:10 PM

Re: Engine for 1976 Bristol 30
What do you mean by a blown head? Needing an exhaust manifold gasket is a non event.

If you mean a blown head gasket, that's not that big a deal either, assuming it ran okay prior.

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