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In 1986 and 1987, the 4.3 L (262 cu in) engine saw engine design upgrades similar to the Chevrolet small block V8. In 1986, the rear main crankshaft oil seal was changed from a two piece to a one piece seal. Some 1985 model year vehicles would have a 1986 engine due to service replacement – cylinder blocks were shipped with oil pans.
The Vortec 3000 was manufactured in Mexico where 1992–2015 engines had a one-piece rear seal similar to the one used with the Chevrolet small-block and 90-degree V6. The flywheel bolt pattern for the later-production 3-liter does not interchange with the earlier 153 or 181 which uses the small-block and inline-six's 3.58-inch bolt-circle, and ...
This engine was redesigned as an OHV for the 1956 model year, [3] but the flathead version reemerged in 1958 as the economy engine for the "new" Rambler American and remained available through 1965. [3] American Motors introduced a die-cast aluminum block version of the OHV 195.6 cu in (3.2 L) engine in 1961 and produced it through 1964. [4]
The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. Regarded as GM's most technically complex engine, the original double overhead cam, four valve per cylinder, aluminum block/aluminum head V8 design was developed by Oldsmobile R&D, [citation needed] but is most associated with Cadillac's Northstar series.
Split crankshaft pins permit even firing intervals. Versions of the engine used in front-engine, front-wheel-drive layouts (FWD) have a different bellhousing pattern than those use in front-engine, rear-wheel-drive layouts (RWD). In 1977 Ford foresaw the need to develop a new engine for use in mid-size cars and light trucks in the 1980s.
The OHV engine was produced until 2000 and was used in the Ford Explorer, Ford Aerostar, Mazda B4000, and Ford Ranger. Output was 160 hp (119 kW; 162 PS) and 305 N⋅m (225 lb⋅ft). Though some variation exists, typically 155 hp (116 kW; 157 PS) is quoted as horsepower for 1990–92 applications. [citation needed] Applications:
The 2.5 L also shared an 18mm threaded oil filter used with the GM 2.8 L (ACDelco PF47 or equivalent) through 1986, when the 4.0 L was phased into production with the XJ models, the oil filter was changed over to a 20mm thread size shared with Renaults until 1991. The AMC I4 first appeared in 1984 model year with the new XJ Cherokee. In 1986 ...
Although the side-valve format has long been abandoned for most automotive applications because its combustion chamber is a bar to high engine rpm, the massively over-square (1.295:1) D-Motor is a very simple, low-revving, compact, reliable lightweight aero-engine (without the heavy complication of ohv valve-gear) [21]