1990 jeep cherokee engine




1990 jeep cherokee engine

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  • The Jeep Cherokee is a line of American vehicles sold by Jeep under various vehicle classes. It also the first Jeep to use the two then-new PowerTech engines; the horsepower ( kW) L . Type, s, s, s, s.

    The American Motors Corporation (AMC) straight-6 family of engines was used in AMC passenger cars and Jeep vehicles from .. – Jeep Cherokee; – Jeep Grand Cherokee; – Jeep Wagoneer; – Jeep.

    Detailed features and specs for the Used Jeep Cherokee including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more.

    1990 jeep cherokee engine

    1990 jeep cherokee engine

    In other projects Wikimedia Commons. This section does not cite any sources. This section needs expansion. Transmission choices were both carry-overs:

    1990 jeep cherokee engine

    1990 jeep cherokee engine

    1990 jeep cherokee engine

    1990 jeep cherokee engine

    1990 jeep cherokee engine

    AMC straight-6 engine - Wikipedia

    American Motors' first straight-six engine was the It was produced from through in both overhead valve OHV and flathead L-head side-valve versions. Sometimes referred to as the engine, this engine was originally designed by Nash and introduced in the Nash Ambassador model.

    It featured only four main bearings, unlike the 7-main-bearing flathead engine it replaced. It was a flathead design displacing It was redesigned as an OHV engine in The flathead version was discontinued for —, but reemerged in as the economy engine for the "new" Rambler American. When the engine was changed to an OHV configuration the water pump was moved from the left side of the engine driven by a shaft extending from the back of the generator to the front above the timing chain.

    1990 jeep cherokee engine

    When the flathead model was reintroduced it also received the new water pump. Equipped with such high quality parts as forged crankshafts and connecting rods , these engines earned a reputation for remarkable durability.

    The flathead, however, was prone to the typical flathead problem of overheating under sustained heavy load. This was from the hot exhaust traveling through the cylinder block to the exhaust manifold. American Motors introduced a die-cast aluminum block version of the OHV It was produced through This engine used cast-iron cylinder liners and a cast-iron head. The cylinder heads for the two types of block aluminum and cast iron are of similar design, but are not interchangeable.

    1990 jeep cherokee engine

    The OHV requires more periodic maintenance than newer-model engines. The head bolts must be re-torqued retightening process regularly. The cause of the headbolts loosening over time is believed to be thermal expansion and contraction of the head due to the rather heavy design. The head expands and contracts by as much as 0. This maintenance is also imperative to prevent the engine from overheating the first sign of a blown head gasket and warping or cracking the head. The cast-iron liners in the aluminum block version can also shift if the head bolts are not properly torqued and the engine is allowed to overheat.

    Good replacement heads and aluminum blocks for these engines are now difficult to find. The company designed an entirely new six-cylinder with a short stroke and seven main bearing crankshaft for This design was produced in various forms through To commemorate the engine's May introduction, 2, "Typhoon" cars were made on the Rambler Classic hardtop body.

    All other AMC options except engine options were available. The new engine replaced the Nash Road tests by Consumer Reports described the new powerplant as "a very smooth and quiet engine, which should give good performance. Both the and featured a 3. Increasingly stringent emission control regulations continued to decrease the engine's power output, making the smaller version inadequate as increasingly stringent safety regulations also made vehicles heavier.

    1990 jeep cherokee engine

    The was the base six-cylinder engine on many models through , and even towards the end of its usage was considered reasonably modern in design.

    After its midyear introduction in the "Typhoon" two-door hardtop as part of the mid-sized Rambler Classic line, the engine was adapted to fit into the smaller Rambler American by using a special short water pump, an adaptive piece also used in the — Jeep CJ Starting in , AMC raised the deck height to produce the , and the adopted the 's longer connecting rods and shared deck height with the Bore and stroke remained the same.

    How To Rebuild a Jeep Engine part 1



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