Toyota Y engine

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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[edit]

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[edit]

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[edit]

  • 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[edit]

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[edit]

This is the low emissions motor with catalytic converter exhaust system

  • OHV 8 valve
  • Displacement: 1,998 cc
  • Inside Bore × Stroke: 86.0 mm ×86.0 mm
  • Compression ratio: 8.8
  • Reference output: 63kW at 4,600 RPM, 155 Nm at 3,400 RPM

Applications:

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

3Y-E[edit]

  • 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:

3Y-EU[edit]

  • OHV 8 valve
  • Capacity: 1,998 cc
  • Bore × stroke: 86.0 × 86.0 mm
  • Reference output: 85 kW (115 PS) 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[edit]

  • 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[edit]

  • 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[edit]

  • 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 4,600 rpm, 157 Nm (16.0 kgm) at 2,400 rpm (1989 July? 1995 November)
     79 PS (58 kW) at 4,400 rpm, 160 Nm (16.3 kgm) at 2,400 rpm (1995 December? )

Applications:

4Y[edit]

  • OHV eight-valve
  • Capacity: 2,237 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[edit]

  1. ^ All Trucks & Vans (catalog) (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), Osaka, Japan: Daihatsu Motors, p. 8, 1 098-00191 
  6. ^ Delta (brochure), p. 24