Isuzu Trooper / Bighorn I, generation #1

Isuzu Trooper / Bighorn I 1

Year of production 1981 - 1991

Model: Trooper / Bighorn (1981 - 2002)

Wikipedia (Trooper / Bighorn):

The first-generation Trooper was available as a three- or five-door, with a solid 4.555:1 rear axle and an independent front suspension. In the Japanese market, the car was originally introduced as the "Isuzu Rodeo Bighorn", but the "Rodeo" part of the name was soon dropped. Early engines included a 2.0-liter gasoline and a 73 PS (54 kW) 2.2-liter diesel, lightly powered even by early 1980s standards for the vehicle's 3,700 lb (1,680 kg) empty weight. The four-wheel-drive system was engaged by operating a three-position shifter adjacent to the transmission shifter. Both Aisin manual-locking and Isuzu's own auto-locking hubs were employed.

In 1986, Isuzu introduced the 4ZD1 four-cylinder 112 PS (82 kW; 110 hp) 2.3-liter engine. Apart from higher power, changes to the previous engine included a Kevlar timing belt replacing the previous chain, and a larger two-barrel carburetor. This engine eventually proved somewhat problematic with a high incidence of burned valves due to poor coolant flow design of the overhead cam/valve head with mechanical lifters. A later head casting improvement by an Italian firm corrected this problem through improved coolant flow. Also available only for 1986 in the US was the 87 PS (64 kW) 2.2l C223T turbocharged diesel engine, using a Garrett turbocharger. It was not a popular option because of the low power generated, and furthermore is notorious for a weak bottom end, the connecting rods not originally designed for the increased thermal and mechanical stress of forced induction. Because of those problems, Isuzu changed the 4ZE1 for 1988 and used the standard 2.8L GM V6 for 1989 until their own new V6 engines could be manufactured.

In 1987, the rectangular headlights were introduced. For 1988, Isuzu introduced a 120 hp (89 kW) 2.6-liter (4ZE1) I-TEC fuel-injected engine for the US market. In 1989, an optional General Motors 2.8-liter pushrod V6 borrowed from the Chevrolet S-10 pickup was also available. Manual transmission equipped models had a gear driven transfer case with a 2.28:1 low range ratio; models equipped with the 2.6-liter four-cylinder engine and automatic transmission had a 2.66:1 low range transfer case. Later first-generation models offered an optional four-speed automatic transmission. Models from 1988 to 1991 were equipped with live rear axles and four-wheel disc brakes.

Overseas model engines included the Isuzu C223 (2,238 cc), C223T (a turbocharged version of the same) and in the late 80s naturally aspirated and turbocharged 2.8 L 4JB1 diesel versions, all straight-four engines. The turbocharged 2.8 originally produced 95 PS (70 kW), not much more than the 87 PS (64 kW) of the considerably smaller C223T due to new stricter emissions standards. Later versions with intercoolers fitted offered as much as 115 PS (85 kW).

In 1989 only, a short-wheelbase (90-inch) Isuzu Trooper was imported to the US market as the Trooper. All of these short wheelbase Troopers were equipped with 2.6-liter fuel-injected inline-four engines, 4.77:1 differential gears and 15×7-inch aluminium alloy "snowflake" pattern wheels. Automatic and manual transmissions were offered.

In Central America, Troopers were offered with removable roofs and a higher wheel clearance. Powertrain options included the Isuzu 2.8-liter turbo diesel.

In 1988, SsangYong Motors started licensed production of the Isuzu Trooper and sold it as the Korando Family, and was only marketed in South Korea, Scandinavia, Southeast Asia and to a lesser degree South America. It used the same 2.2 L diesel engine but later versions used both the 2.3 L Mercedes-Benz turbodiesel engine and the natural aspirated Peugeot 2.5 L diesel engine.

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Manuals Isuzu Trooper / Bighorn I  |  Trooper / Bighorn Upload new manual

User's manuals (1) Add

Year Document Language Size Pages
trooper betriebsanleitung.pdf German 13.6 MB 59

Repair manuals (3) Add

Year Document Language Size Pages
1986 trooper 1986 English 8.12 MB
1981 - 1991 isuzu pick ups trooper haynes repair manual.pdf English 27.7 MB 257
isuzu trooper repair manual.pdf English 51 MB 259

Our vehicles Isuzu Trooper / Bighorn I Add a vehicle

1986 Isuzu Trooper / Bighorn I 2.3 (140 cui)

1 photos

Fuel gasoline. 5-speed Manual transmission. Engine 2 300 ccm (140 cui), 4-cylinder, In-Line, 8-valves, 4ZE1.

1986 Isuzu Trooper / Bighorn I 2.3 (138 cui)

1 photos

Fuel gasoline. 5-speed Manual transmission. Engine 2 254 ccm (138 cui), 4-cylinder, In-Line, 4ZD1 .

She is old like me and she is also gummy like me

1986 Isuzu Trooper / Bighorn I 2.0 (121 cui)

3 photos  |  3 discussions

Performance 58 kW (79 PS) . Fuel gasoline. 4-speed Manual transmission. Engine 1 981 ccm (121 cui), 4-cylinder, In-Line.

1991 Isuzu Trooper / Bighorn I 2.8 (171 cui)

14 photos

Performance 85 kW (116 PS) . Fuel diesel. 5-speed Manual transmission. Engine 2 800 ccm (171 cui), 4-cylinder, In-Line, 8-valves.

Můj krasavec o dost mladší než já. Najeto jen 115000km.Dobrej přítel,kterej mě zatím nikdy nenechal v e štychu.

1991 Isuzu Trooper / Bighorn I 2.6 (159 cui)

1 photos

Fuel gasoline. 5-speed Manual transmission. Engine 2 600 ccm (159 cui).