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I/O engine?

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Viseth

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I was given a 1970 hydroswift tri-hull boat, but cannot find what engine is in the boat. It is a v6. Can anyone help identify the engine. There are no tags or markers on the engine.
 
Okay here are the pics... IMG_0746.jpgIMG_0748.jpgIMG_0863.jpgIMG_0749.jpg
Can anyone identify this engine?

I am a newbie to boating, so what type of engine is this called beside the obvious Inboard. Is it a sterndrive? That lower unit has OMC.
 
G'day Viseth,

What you have is a up to 1967 Buick V6 (Nailhead), which was then re-branded a Jeep when Buick sold the build rights to Jeep, who produced them till around 1972 or 3. It was 225 Cubic Inch displacement, and pushed out an advertised 155 HP.

The OMC Drive hangs off the engine itself, so all the weight is taken by the Stringers. Hence, they are called Stringer Mounts when describing them. They differ from a Transom Mount which has the unit attached wholly to the Transom, and a Universal Drive transfering the power from the engine to the Unit.

Your Drive is a High Series, as it is taller than the Low Series, and possible an Electric Shift.

Your drive from the engine to the Leg is via a pair of "Ball Gears", and when operating the engine, make sure that the Leg is all the way down. Not part way up, or being used to trim the drive, but all the way down. Failure to do this will soon destroy the bears, and if they are the press-in type, they are hard to find as replacements. When the engine is running, the whole rorating mass of the Leg is also turning, as the forward and reverse gearing is directly in front of the prop. If you are running in gear, with the leg out of the water, then the Electro Magnets in the Gear Solenoid will overheat, and burn out. Not good. It needs water around it to aid in cooling.

Further, running the engine with the leg up and or out of water will allow the excess cooling water to escape before it can aid in cooling the internal gearing. Further, running the engine with the leg dry will destroy the water pump which is in the centre part of the leg.

Hope I have covered it enough for you.

Bruce.

PS. They are a good little motor.

PPS. Looks like someone has modified the Steering, as I believe this one should have a Worm Steering.
 
Viseth said:
I was given a 1970 hydroswift tri-hull boat, but cannot find what engine is in the boat. It is a v6. Can anyone help identify the engine. There are no tags or markers on the engine.
Click to expand...
Viseth, this is going to sound rather "doom and gloom", and you may not be asking for an opinion as such......, but it will be more realistic for you to hear this, IMO!
This boat was given to you for a reason!
That reason is it's age and the stringer drive itself, and the fact of it being a tri-hull.
Some prefer the stability of a tri-hull, and they do make a good fishing platform........., but these are rough riding!

For the anticipated cost to re-furbish this boat, engine and/or out drive......, you'd do better to take that budgeted money, and buy something in a V-hull, and a little bit newer, IMO.

This is NOT OMC bashing, this is good sound advice from having watched others do this very same thing, only to end up with an engine and drive that are, by today's standards, obsolete!
 
I agree with Ricardo.

There is nothing free about a free boat. There are a lot of boats out there for sale cheep. I would look into at least a late 80's Mercruiser or Volvo Penta.
 
I won't be so gloomy about the joy of an old boat....
http://hhscott.com/evinrude/index.htm
http://www.ultimate.com/omc-boats/

couple of links there...'cause your boat really looks like an OMC knockoff

guys like Phil Budne, Lee Shuster and others have kept a great resource and mailing list alive for the 1960's OMC boat owners. Parts and support for the next millenium via networking.
OMC built tens of thousands of those things and there are still hundreds around my part of the world (I am 30 miles from the old OMC plant)...always 1 or 2 on my local kijiji. I usually see half a dozen out on the lake every summer.

The roughest riding things ever... I don't understand the love, but then I see things being loved every day that probably don't deserve it from an engineering or parts availability standpoint...e.g. Harley Davidson motorcycles...
 
Gee, I only purchased mine because it had the Chris Craft name on it. Couldn't afford a Mahogany Chris Craft, so I settled for one I could afford. I even shipped it 14,000 miles to the bottom side of the world, and totally rebuilt it. Can't be happier with it.

But, a boat only rides as rough as the skipper allows it to. That is why they have an adjustable throttle:D

Bruce.
 
Thanks for all your insights! Sounds to me like money I don't have. I've got a free boat with a free trailer and title in hand. Any offers?
 
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