Toyota Y engine

The Toyota Y engine is a design that's a combination of the Toyota T engine, and the Toyota R engine, in a way that's similar to how the Toyota F engine is a design of the Toyota Type B engine, and the Chevrolet inline-six. The Y engine has mostly only 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 emissions standards for light commercial vehicles.

  • OHV, eight valves
  • Capacity: 1,626 cc
  • Bore × stroke: 86.0 × 70.0 mm
  • Reference output: 84 PS (62 kW), 13.8 kg⋅m (135 N⋅m) (gross figures, apply to both 1Y and 1Y-J)

Applications:

2Y

The 2Y engine is an OHV, eight valve construction just like the 1Y. It shares that engine's 86.0 mm bore, but stroke is increased to 78.0 mm for a displacement of 1.8 litres. There are also 2Y-J and 2Y-U engines with differing emissions control equipment.

  • OHV, eight valves
  • Capacity: 1,812 cc
  • Bore × stroke: 86.0×78.0 (mm)
  • Compression ratio: 8.8
  • Reference output (2Y): 79 PS (58 kW) at 5,000 rpm, 14.3 kg⋅m (140 N⋅m) at 3,200 rpm (net)
     95 PS (70 kW), 15.5 kg⋅m (152 N⋅m) (gross)

Applications:

2Y-P

  • OHV 8 valve (LPG)
  • Capacity: 1,812 cc
  • Bore × stroke: 86.0×78.0 (mm)
  • Specifications: 51 kW (70 PS) 4,600 rpm 132 Nm (13.5 kg-m) 2,200 rpm (net)
     63 kW (85 PS) 5,000 rpm 142Nm (14.5 kg-m) 3,000 rpm (gross)
  • LPG

Applications:

3Y

There is also the emissions cleaned 3Y-U engine.

  • OHV 8 valve
  • Capacity: 1,998 cc
  • Bore × stroke: 86.0 × 86.0 mm
  • Compression ratio: 8.8
  • Reference output: 65 kW (88 PS) at 4,800 rpm, 155 Nm (15.8 kgm) at 3,400 rpm

Applications:

3Y-C

This is the low emissions motor with catalytic converter exhaust system

  • OHV 8 valve
  • Displacement: 1998 cc
  • Inside Bore × Stroke: 86.0 mm ×86.0 mm
  • Compression ratio: 8.8
  • Reference output: 85 PS (63 kW) at 4600 rpm, 155 Nm at 3400 rpm

Applications:

  • LiteAce XTRA TRACK Wagon YM40(RGMDSQ),YM41(RVMDSQ)
  • Toyota Townace Van 30 series YR39

3Y-E

  • OHV 8 valve
  • Capacity: 1,998 cc
  • Bore × stroke: 86.0 × 86.0 mm
  • Compression ratio: 8.8
  • Reference output: (97 PS) at 4,800 rpm, 160 Nm (16.3 kgm) at 3,800 rpm

Applications:

I

3Y-EU

  • OHV 8 valve
  • Capacity: 1,998 cc
  • Bore × stroke: 86.0 × 86.0 mm
  • Reference output: 115 PS (85 kW) at 5000 rpm, 179 Nm (18.3 kg-m) at 3600 rpm (gross)
     97 PS (71 kW) at 4800 rpm, 160 Nm (16.3 kgm) at 3800 rpm (net)

Applications:

3Y-P

  • OHV 8 valve (LPG)
  • Capacity: 1,998 cc
  • Bore × stroke: 86.0 × 86.0 mm
  • Output: 79 PS (58 kW) at 4,600 rpm, 15.0 kgm (147 Nm) at 3,000 rpm

Applications:

  • Crown(YS130)
  • Mark II(YX80)

3Y-PU

  • OHV 8 valve (LPG)
  • Capacity: 1,998 cc
  • Bore × stroke: 86.0 × 86.0 mm
  • Reference output: 66 kW (90 PS) at 5,000 rpm, 157 Nm (16.0 kg-m) at 3,000 rpm (gross)
     79 PS (58 kW) at 4,600 rpm, 147 Nm (15.0 kg-m) 2,000 rpm (net)

Applications:

  • Crown (YS120)

3Y-PE

  • OHV, eight valves
  • Capacity: 1,998 cc
  • Bore × stroke: 86.0 × 86.0 mm
  • Compression ratio: 10.5
  • Reference output: 60 kW (82 PS) at 4600 rpm, 157 Nm (16.0 kgm) at 2400 rpm (August 1989 until November 1995)
     79 PS (58 kW) at 4400 rpm, 160 Nm (16.3 kgm) at 2400 rpm (1995 December)

Applications:

4Y

  • OHV eight-valve
  • Capacity: 2237 cc
  • Bore and stroke: 91.0 × 86.0 mm

This engine was available either carburetted (4Y) or fuel injected (4Y-E, called the 491Q-ME for Chinese manufacture). As fitted to a 1989 Daihatsu Delta truck, the carburetted 4Y produces 70 kW (95 PS; 94 hp) at 4400 rpm (SAE net)[5] and 182 N⋅m (18.6 kg⋅m; 134 lb⋅ft) at 3000 rpm.[6]

Applications

References

  1. ↑ All Trucks & Vans (catalog)|format= requires |url= (help) (in Japanese), Japan: Toyota, August 1985, p. 18, 021011-6008
  2. ↑ Rex, Rainer, ed. (July 1989), Lastauto Omnibus Katalog 1990 [Truck and bus catalog] (in German), 19, Motor-Presse-Verlag GmbH und Co. KG, p. 151, 81531/89001
  3. ↑ 自動車ガイドブック [Japanese Motor Vehicles Guide Book 1983/1984] (in Japanese), 30, Japan: Japan Automobile Manufacturers Association, 1983-10-28, p. 238, 0053-830030-3400
  4. ↑ Automobile Guide Book 1983/1984, p. 244
  5. ↑ Delta (brochure)|format= requires |url= (help), Osaka, Japan: Daihatsu Motors, p. 8, 1 098-00191
  6. ↑ Delta (brochure), p. 24
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