Toyota Y engine

The Toyota Y engine is a series of overhead valve straight-four petrol engines manufactured by Toyota from 1982 through 1996. The Y engine has mostly been used in commercial and off-road vehicles.

The valve arrangement from the Toyota K engine is interchangeable with this engine.

Translated from Japanese Wiki ja:トヨタ・Y型エンジン

1Y
There is also the 1Y-J, with the "J" suffix meaning that the engine is built to meet emission standards for light commercial vehicles. Applications:
 * OHV, eight valves
 * Displacement: 1626 cc
 * Bore × stroke: 86x70 mm
 * Reference output: 84 PS, 13.8 kgm (gross figures, apply to both 1Y and 1Y-J)
 * Toyota HiAce truck
 * Toyota LiteAce (YM20, first generation)
 * Toyota ToyoAce
 * Toyota TownAce (YR10)

2Y
The 2Y engine is an OHV, eight valve construction just like the 1Y. It shares that engine's 86 mm bore, but stroke is increased to 78 mm for a displacement of 1812 cc. There are also 2Y-J and 2Y-U engines with differing emissions control equipment.

Applications:
 * OHV, eight valves
 * Displacement: 1812 cc
 * Bore × stroke: 86x78 mm
 * Compression ratio: 8.8:1
 * Reference output (2Y): 79 PS at 5,000 rpm, 14.3 kgm at 3,200 rpm (net) 95 PS, 15.5 kgm (gross)
 * 5th generation Toyota Mark II Van (YX76V, 2Y-J)
 * 3rd generation Toyota HiAce van (YH50V/60V)
 * Toyota Hilux
 * Toyota TownAce van (YR25V)
 * Toyota LiteAce wagon (YM20/30G)
 * Volkswagen Taro (a rebadged Hilux)

2Y-P
Applications:
 * OHV 8 valve (LPG)
 * Displacement: 1812 cc
 * Bore × stroke: 86x78 mm
 * Specifications: 70 PS 4,600 rpm 13.5 kgm 2,200 rpm (net) 85 PS 5,000 rpm 14.5 kgm 3,000 rpm (gross)
 * LPG
 * Toyota Corona (YT140)
 * Toyota Mark II (YX70)

3Y
There is also the emissions cleaned 3Y-U engine. A version of the 3Y is built by the Shenyang Xinguang-Brilliance Automobile Engine Co. in China as the 4G20B; this engine meets the Euro IV emissions standards.

Applications:
 * OHV 8 valve, carburetted
 * Displacement: 1998 cc
 * Bore × stroke: 86x86 mm
 * Compression ratio: 8.8:1
 * Reference output: 88 PS at 4,800 rpm, 15.8 kgm at 3,400 rpm
 * 3rd generation Toyota HiAce truck/van/wagon (YH51G/61G/71G)
 * Hilux
 * Dyna/ToyoAce
 * Aug 1983–Aug 1987 Crown (YS120, export models)

3Y-C
This is the low emissions carburetted motor with catalytic converter exhaust system
 * OHV 8 valve
 * Displacement: 1998 cc
 * Inside Bore × Stroke: 86x86 mm
 * Compression ratio: 8.8:1
 * Reference output: 85 PS at 4600 rpm, 15.8 kgm at 3400 rpm

Applications:
 * LiteAce XTRA TRACK Wagon (YM40-RGMDSQ), (YM41-RVMDSQ)
 * Toyota Townace Van (YR39)

3Y-E
Applications:
 * OHV 8 valve, fuel injection
 * Displacement: 1998 cc
 * Bore × stroke: 86x86 mm
 * Compression ratio: 8.8:1
 * Reference output: 97 PS at 4,800 rpm, 16.3 kgm at 3,800 rpm
 * Feb 1993–Apr 1997 Toyota Mark II (YX78V, fifth generation)
 * Aug 1988–Dec 1995 Mark II (YX80)
 * Apr 1989–Aug 1991 Hilux Surf (YN130G)
 * Daihatsu Rocky F80, F85 (Australia 1988 model year only)
 * 1996 Toyota Classic

3Y-EU
Applications:
 * OHV 8 valve, fuel injection and emissions equipment
 * Displacement: 1998 cc
 * Bore × stroke: 86x86 mm
 * Reference output: 115 PS at 5000 rpm, 18.3 kgm at 3600 rpm (gross) 97 PS at 4800 rpm, 16.3 kgm at 3800 rpm (net)
 * Aug 1986–Mar1989 Hilux Surf/4Runner (YN61G)
 * TownAce Wagon/MasterAce Surf (YR21G)
 * Daihatsu Delta Wagon (YB21G)

3Y-P
Applications:
 * OHV 8 valve (LPG)
 * Displacement: 1998 cc
 * Bore × stroke: 86x86 mm
 * Output: 79 PS at 4,600 rpm, 15 kgm at 3,000 rpm
 * Sep1987–Aug1989 Crown Sedan (YS130)
 * Aug1988–Dec 1995 Mark II sedan (YX80)

3Y-PU
Applications:
 * OHV 8 valve (LPG, emissions equipment)
 * Displacement: 1998 cc
 * Bore × stroke: 86x86 mm
 * Reference output: 90 PS at 5,000 rpm, 16 kgm at 3,000 rpm (gross) 79 PS at 4,600 rpm, 15 kgm 2,000 rpm (net)
 * Aug 1983–Aug 1987 Crown (YS120)
 * Aug 1986–??? Mark II (YX72/YX78V)

3Y-PE
Applications:
 * OHV 8 valve (LPG, fuel injection)
 * Displacement: 1998 cc
 * Bore × stroke: 86x86 mm
 * Compression ratio: 10.5:1
 * Reference output: 82 PS at 4600 rpm, 16 kgm at 2400 rpm (August 1989 until November 1995) 79 PS at 4400 rpm, 16.3 kgm at 2400 rpm (1995 December)
 * Aug 1989–Nov 1999 Crown (YS130)
 * Dec 1995–Aug 2008 Comfort (YXS10)
 * Dec 1995–Aug 2008 Comfort (YXS11)

4Y

 * OHV eight-valve
 * Displacement: 2237 cc
 * Bore and stroke: 91x86 mm

This engine was available either carburetted (4Y) or fuel injected (4Y-E, called the GW491Q/LJ491Q and also 4G22B for Chinese manufacture). As fitted to a 1989 Daihatsu Delta truck, the carburetted 4Y produces 70 kW at 4400 rpm (SAE net) and 18.6 kgm at 3000 rpm.


 * Applications:
 * 1987.09 - 1995.12 Toyota Crown (YS132, overseas specifications)
 * Toyota Van (Town Ace overseas specification, Tarago in Australia)
 * Hiace third generation (overseas specification)
 * 1979-1988 Toyota Stout (YK110)
 * Daihatsu Delta
 * 1993-1995 Daihatsu Rocky F95
 * Toyota Industries forklifts
 * Toyota 4Runner (Australia)
 * Volkswagen Taro
 * 1985–1997 Toyota Hilux fourth and fifth generation