2.7L Engine

Engine Specifications

DESCRIPTION

SPECIFICATION

General Specifications

Type

60° DOHC V-6 24-Valve

Displacement

2.7 Liters (167 Cubic Inches)

Bore & Stroke

86.0 x 78.5 mm (3.386 in. x 3.091 in.)

Compression Ratio

9.67:1

Lead Cylinder

#1 Right Bank

Firing Order

1-2-3-4-5-6

Cylinder Block

Cylinder Bore Diameter

86.0 mm ± 0.0076 (3.3859 in. ± 0.0003)

Out of Round (Max.)

0.076 mm (0.003 in.)

Taper (Max.)

0.051 mm (0.002 in.)

Pistons

Material

Aluminum Alloy

Piston Diameter

85.983 mm ± 0.019 (3.3851 in. ± 0.0017)

Clearance at Size Location

- 0.0096 to +0.0436 mm (-0.0003 to +0.0016 in.)

Piston Weight

316 - 326 grams (11.1466 - 11.4994 oz.)

Piston Ring Groove Diameter-No. 1

77.8 - 78 mm (3.063 - 3.070 in.)

Piston Ring Groove Diameter-No. 2

75.9 - 76.1 mm (2.988 - 2.996 in.)

Piston Ring Groove Diameter-No. 3

76.5 - 76.7 mm (3.011 - 3.019 in.)

Piston Pins

Type

Full Floating

Pin Diameter

21.997 - 22.000 mm (0.8661 - 0.8662 in.)

Clearance in Piston

0.005 - 0.013 mm (0.0002 - 0.0005 in.)

Clearance in Rod

0.007 - 0.018 mm (0.0003 - 0.0008 in.)

Piston Rings

Ring Gap-Top Compression Ring

0.20 - 0.36 mm (0.008 - 0.014 in.)

Ring Gap-2nd Compression Ring

0.37 - 0.63 mm (0.0146 - 0.0249 in.)

Ring Gap-Oil Control (Steel Rails)

0.25 - 0.76 mm (0.010 - 0.030 in.)

Piston Ring Side Clearance

Compression Ring-Top

0.035 - 0.083 mm (0.0013 - 0.0032 in.)

Compression Ring-Second

0.040 - 0.080 mm (0.0016 - 0.0031 in.)

Oil Ring (Steel Rails)

0.058 - 0.204 mm (0.0022 - 0.0080 in.)

Piston Ring Width

Compresion Rings-Top and Second

1.47 - 1.49 mm (0.0579 - 0.0587 in.)

Oil Ring (Steel Rails)

0.445 - 0.470 mm (0.0176 - 0.0186 in.)

Connecting Rods

Bearing Clearance

0.024 - 0.064 mm (0.001 - 0.0026 in.)

Side Clearance

0.13 - 0.38 mm (0.0052 - 0.015 in.)

Side Clearance (Max.)

0.4318 mm (0.017 in.)

Piston Pin Bore Diameter

22.007 - 22.015 mm (0.8665 - 0.8668 in.)

Bearing Bore Out of Round (Max.)

0.004 mm (0.0002 in.)

Total Weight (Less Bearing)

529.9 ± 7 grams (18.6917 ± 0.247 oz.)

Crankshaft Main Bearing Journals

Diameter

63.49 - 63.51 mm (2.4997 - 2.5004 in.)

Bearing Clearance

0.035 - 0.053 mm (0.0014 - 0.0021 in.)

Bearing Clearance (Max.)

0.087 mm (0.0034 in.)

Out of Round (Max.)

0.015 mm (0.0006 in.))

Taper (Max.)

0.015 mm (0.0006 in.)

End Play

0.0475 - 0.2725 mm (0.0019 - 0.0108 in.)

End Play (Max.)

0.43 mm (0.017 in.)

Connecting Rod Journals

Diameter

53.51 - 53.49 mm (2.1067 - 2.106 in.)

Bearing Clearance

0.024 - 0.064 mm (0.001 - 0.0026 in.)

Out of Round (Max.)

0.015 mm (0.0006 in.)

Taper (Max.)

0.015 mm (0.0006 in.)

Camshaft

Bore Diameter

24.050 - 24.071 mm (0.9469 - 0.09476 in.)

Bearing Journal Diameter

24.000 - 23.981 (0.9449 - 0.9441 in.)

Bearing Clearance

0.05 - 0.09 mm (0.0020 - 0.0035 in.)

Bearing Clearance (Max.)

0.13 mm (0.0051 in.)

End Play

0.13 mm (0.0051 - 0.0110 in.)

Valve Timing-Intake Valve

Opens (ATDC)

2°

Closes (ABDC)

44°

Duration

222°

Valve Timing-Exhaust Valve

Opens (BBDC)

36°

Closes (ATDC)

4°

Duration

220°

Valve Overlap

2°

Cylinder Head

Gasket Thickness (Compressed)

1.50 mm ± 0.05 (0.0591 in. ± 0.002 in.)

Valve Seat Angle

45°-45.5°

Valve Seat Runout (Max.)

0.05 mm (0.002 in.)

Intake Valve Seat Width

1.00 - 1.5 mm (0.0394 - 0.0591 in.)

Exhaust Valve Seat Width

1.25 - 1.75 mm (0.0492 - 0.0689 in.)

Guide Bore Diameter (Std.)

5.975 - 6.00 mm (0.2353 - 0.2363 in.)

Valve Guide Height*-Intake & Exhaust

13.25 - 13.75 mm (0.5217 - 0.5414 in.)

*Measured from cylinder head surface to top of guide

Valves

Face Angle

44.5° - 45.5°

Head Diameter-Intake

33.67 - 33.93 (1.3256 - 1.3358 in.)

Head Diameter-Exhaust

27.67 - 27.93 mm (1.0894 - 1.1000 in.)

Length-Intake (Overall)

107.89 - 108.39 mm (4.2476 - 4.2673 in.)

Length-Exhaust (Overall)

105.88 - 106.38 mm (4.1685 - 4.1882 in.)

Stem Diameter-Intake

5.934 - 5.952 mm (0.2337 - 0.2344 in.)

Stem Diameter-Exhaust

5.906 - 5.924 mm (0.2326 - 0.2333 in.)

Stem-to-Guide Clearance-Intake (New)

0.023 - 0.066 mm (0.0009 - 0.0026 in.)

Stem-to-Guide Clearance-Exhaust (New)

0.051 - 0.094 mm (0.002 - 0.0037 in.)

Stem-to-Guide Clearance-Intake (Max., Rocking Method)

0.29 mm (0.0114 in.)

Stem-to-Guide Clearance-Exhaust (Max., Rocking Method)

0.370 mm (0.0146 in.)

Valve Lift-Intake (Zero Lash)

9.0 mm (0.3543 in.)

Valve Lift-Exhaust (Zero Lash)

8.0 mm (0.3150 in.)

Valve Stem Tip Height-Intake

47.120 ± 0.467 mm (1.8551 ± 0.00184 in.)

Valve Stem Tip Height-Exhaust

48.672 ± 0.467 mm (1.9162 ± 0.00184 in.)

Valve Spring

Free Length-Intake & Exhaust (Approx.)

45.63 mm (1.7965 in.)

Spring Force-Intake & Exhaust (Valve Closed)

249 - 284 N @ 38.0 mm (56.0 - 64.0 lbs. @ 1.4961 in.)

Spring Force-Intake (Valve Open)

658 - 721 N @ 29.0 mm (147.9 - 162.1 lbs. @ 1.1417 in.)

Spring Force-Exhaust (Valve Open)

614 - 671 N @ 30.0 mm (138.0 - 150.8 lbs. @ 1.1811 in.)

Number of Coils-Intake & Exhaust

7.35

Wire Diameter-Intake & Exhaust

3.861 mm (0.1520 in.)

Installed Height-Intake & Exhaust (Spring seat to bottom of retainer)

38,0 mm (1.4961 in.)

OH Pump

Clearance Over Rotors (Max.)

0.077 mm (0.003 in.)

(Cover-Out-of-Flat (Max.)

0.025 mm (0.001 in.)

Inner & Outer Rotor Thickness

9.475 - 9.500 mm (0.3731 - 0.3741 in.)

Outer Rotor Clearance (Max.)

0.39 mm (0.015 in.)

Outer Rotor Diameter (Min.)

89.175 mm (3.5109 in.)

Tip Clearance Between Rotors (Max.)

0.20 mm (0.008 in.)

Oil Pressure

(NOTE: At Normal Operating Temperatures)

Pressure @ Curb Idle Speed⁽¹⁾

34.7 kPa Min. (5 psi) Min.

Pressure @ 3000 RPM

300 - 724 kPa (45 - 105 psi)

CAUTION:

⁽¹⁾	If oil pressure is zero at idle, DO NOT run engine at 3000 RPM.