Toyota 1rz Engine Manual

1RZ 2rz Engine Manual Jun 16, 2017 - Toyota Engine 1RZ,1RZ-E,2RZ,2RZ-E Repair Manual. Free View Online. The Toyota RZ engine family is a straight-4 piston engine series built in Japan. The RZ series uses a cast iron engine block and aluminum SOHC or DOHC cylinder heads. It has EFI fuel injection, 2 or 4 valves per cylinder Toyota Engine 1RZ,1RZ. The Toyota RZ engine family is a straight-four piston engine series built in Japan. The RZ series uses a cast-iron engine block and aluminum SOHC or DOHC cylinder heads. It has electronic fuel injection (EFI), 2 or 4 valves per cylinder and features forged steel connecting rods.

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The Legendary R Series

The Toyota R Series was introduced in the mid-1950s as a small, four-cylinder engine and it quickly became popular for its robust build and efficiency. Most of today's Toyota enthusiasts know it as the 22R, which was introduced in 1981 and built until it was replaced in 1995. This popular engine appeared in many rear-wheel drive Toyota vehicles globally, including the Celica. The R Series was one of the longest-lived and most prolific of Toyota's engine families before its discontinuation. Replacement was largely with the RZ Series.

The 22R-E is the fuel-injected version of the R series in its 22nd and last generation. It appeared in the rear-wheel drive Celica up to 1985, the 1985-1995 Toyota Pickup and the 1985-1995 4Runner. The 22R-E has two iterations, the pre-1985 and the post-1985 versions. The 22R-Es made from 1985 onwards feature more horsepower and torque, smaller timing chains, etc. This version appears in the 4Runner and Pickup and is what is referenced below.

22R-E (post-'85)

Firing Order: 1-3-4-2
Spark Plug Gap: 0.032 in

The RZ Series

2RZ-FE Engine

The RZ Series entered the market in 1989 as a replacement for the R Series engines, which were becoming long in the tooth. The 1RZ began in 1989 and is a 2.0-liter inline four with just over a hundred horsepower and pound feet of torque. The second-generation was the first of the RZ Series to enter the United States.

The 2RZ-FE was a 2.4-liter version of the RZ Series with a 142 horsepower output and a 160 lb-ft torque rating. Its four valves per cylinder and dual overhead cam (DOHC) configuration has valve adjustment using shim over bucket. It appears in the 1995-2004 Toyota Tacoma 4x2, replacing the 22R-E.

The 3RZ-FE is a 2.7-liter version of the 2RZ-FE. Its larger displacement means more power output, suitable for the requirements of a four-wheel drive platform. This engine appears in the 1995-2004 Tacoma 4x4, 1996-2000 4Runner, and 1994-1998 T100. It is functionally the same as the 2RZ-FE.

2RZ-FE

Firing Order: 1-3-4-2
Spark Plug Gap: 0.041 in

3RZ-FE

Firing Order: 1-3-4-2
Spark Plug Gap: 0.040 in

Toyota RZ engine
Overview
Manufacturer	Toyota Motor Corporation
Production	1989–2004
Layout
Configuration
Cylinder bore
Piston stroke	86 mm (3.39 in) 95 mm (3.74 in)
Block material	Cast iron
Head material	Aluminum
RPM range
Redline	5,500
Combustion
Fuel system	Electronic fuel injection
Fuel type	Gasoline
Cooling system	Water-cooled
Output
Power output	101–150 hp (75–112 kW; 102–152 PS)
Torque output	118–177 lb⋅ft (160–240 N⋅m)
Chronology
Predecessor
Successor	Toyota TR engine

The Toyota RZ engine family is a straight-fourpiston engine series built in Japan. The RZ series uses a cast-iron engine block and aluminum SOHC or DOHCcylinder heads. It has electronic fuel injection (EFI), 2 or 4 valves per cylinder and features forged steelconnecting rods.

1RZ[edit]

The 1RZ is a 2.0 L (1,998 cc) version built from 1989. Bore and stroke is 86 mm × 86 mm (3.39 in × 3.39 in).

1RZ-E[edit]

The 1RZ-E is the fuel-injected version of the 1RZ. With a compression ratio of 9.0:1, output is 101–108 hp (75–81 kW; 102–109 PS) at 5,400 rpm with 118–123 lb⋅ft (160–167 N⋅m) of torque at 2,800 rpm. With redline at 5,500 rpm.

Applications:

1989–2004 Toyota HiAce
1998–2005 Toyota Revo
1998–2001 Toyota Hilux
2000–2004 Toyota Kijang/Venture

2RZ[edit]

The 2RZ is a 2.4 L (2,438 cc) version. Bore and stroke is 95 mm × 86 mm (3.74 in × 3.39 in); a variety of combination of heads and fuel delivery systems were available.

2RZ-E[edit]

This is an SOHC engine with two valves per cylinder. Valve adjustment is by shim over bucket. Output is 120 PS (88 kW; 118 hp) at 5,200 rpm. Originally manufactured with a carburetor induction system, it was later upgraded to Electronic Fuel Injection, with the -E suffix added to the engine designation. Toyota specified unleaded fuel with a rating of at least 91 RON in Australia.

Applications:

1989–2004 Toyota HiAce (encompassing the RZH1xx series, with the 2RZ-E engine variant introduced in 1998)

2RZ-FE[edit]

2RZ-FE Engine in a 1999 Toyota Hilux

The 2RZ-FE, and 4RB1 or 4RB2 in China, is a 2.4 L (2,438 cc) version. Bore and stroke is 95 mm × 86 mm (3.74 in × 3.39 in). Compression ratio is 9.5:1. Output is 142 hp (106 kW; 144 PS) at 5000 rpm with 160 lb⋅ft (217 N⋅m) of torque at 4000 rpm. This engine does not feature balance shafts. It has four valves per cylinder and DOHC. Valve adjustment is by shim over bucket. The 2RZ-FE is an interference engine. A 2.2 L (2,185 cc) version called the 4RB3 is also manufactured in China. This one has a bore and stroke of 91 mm × 84 mm (3.58 in × 3.31 in), while sharing the 2RZ's 102.5 mm (4.04 in) bore spacing.

Applications:

1995–2004 Toyota Tacoma4x2
1998–2004 Toyota Hilux

3RZ[edit]