[OMC-Boats] OMC Stringer Generation Naming

I've been thinking of breaking down the OMC Stringer Sterndrives in
broad "GENERATIONS" of families to help make it easier to know what
were talking about. The recommended lube discussion got me to thinking.

I'm very fuzzy on the 1978 - 1986 (non-electric shift) Stringers. But
all Stringers share basic design features: Ball gear drive, floating
intermediate housing, 75-degree power tilt, 120-degree steering,
stringer mounting that transfers thrust to non-transom structural
members of boat (stringers).

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 From an original OMC BOAT-OWNERS perspective things are pretty
simple: Our boats were all Gen-Zero, Gen-I or Gen-II powered.

1962 - 1965 Gen Zero = Outboard powered (the 1962 - 1968 high-end OMC-
E/J outboards" 40, 75, 90, 100 hp featured available electric shift
lower units)

1962 -1968 Gen One = The 1st OMC 480, 488, and 490 two-stroke,
"bullet-shaped" split gearcase lower unit. (Also used very sparingly/
rarely on a few 1964-65 110 hp I-4 Chevy II) Built from Electric
Shift, Type C gear case lube.

1964 - 1973 Gen Two = The "big brother" large gearcase, one-piece
gearcase, 14-inch prop. Used on 120, 150, 155, 165 185, 200, 210, 215,
225, 235, 245 GM engines. Four-bolt top caps (shimless) from 1964
-1967-1/2. Five-bolt from late 1967 to 1973 used shims. Electric
Shift, Type C gear case lube.

1973 - 1977 Gen Three = This generation introduced Ford V8 engines
175, 190 and 235, along with the SelecTrim option on inline GM
engines. TruCourse steering appeared, as did the shorter profile
drive, to permit mounting the engine lower. Down-firing exhaust
rudder. Electric Shift, Type C gear case lube.

1978 - 1981 Gen Four = The 400 (120 - 140 ) 800 (all V-engines)
thru-prop exhaust lower gearcase adapted from outboards, featuring
Visible styling changes to exhaust housing. All are "short-leg." are
Hydro-assisted-mechanical shift, OMC Hi-VIS gear case lube

1982 - 1986 Gen Five = Similar to Gen Four but without the Hydro-
assist. OMC Hi-VIS gear case lube

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Received on Monday, 31 August 2009