Engine Tolerance Specifications

Bore 94 mm (3.700 in.)
Stroke 85.6 mm (3.370 in.)
Compression Ratio 10.2:1
Cranking RPM - at 40� C (104°F) 80 RPM
Idle Speed RPM 700 A/C Off - 700 A/C On
Firing Order 1-2-3-4-5-6
Spark Plug Gap 1.1 mm ( / 1.2 mm (0.0433 in.) / 0.0472 in.)
Block
Crankshaft Main Bearing Bore Diameter 72.867-72.881 mm (2.8688-2.8693 in.)
Cylinder Bore Diameter 94 mm (3.7008 in.)
Cylinder Bore Out-of-Round - Production Max. 0.013 mm (0.0005 in.)
Camshaft
Camshaft Bearing Inside Diameter - Front Number 1 35.000-35.020 mm (1.3779-1.3787 in.)
Camshaft Bearing Inside Diameter - Middle and Rear Number 2-4 27.000-27.020 mm (1.0630-1.0638 in.)
Camshaft End Play 0.045-0.215 mm (0.0018-0.0085 in.)
Camshaft Journal Diameter - Front, 1 34.936-34.960 mm (1.3754-1.3764 in.)
Camshaft Journal Diameter - Middle and Rear, 2-4 26.936-26.960 mm (1.0605-1.0614 in.)
Camshaft Journal Out-of-Round 0.006 mm (0.0002 in.)
Camshaft Journal to Bore Clearance 0.040-0.084 mm (0.0016-0.0033 in.)
Camshaft Lobe Duration - Exhaust @ 0.150 mm ( (0.0059 in) Lift 238 °
Camshaft Lobe Duration - Intake @ 0.150 mm ( (0.0059 in) Lift 226 °
Camshaft Lobe Lift - Exhaust 42.456-42.756 mm (1.6715-1.6833 in.)
Camshaft Lobe Lift - Intake 42.385-42.685 mm (1.6687-1.6805 in.)
Camshaft Lobe Overlap @ 0.150 mm ( (0.0059 in) Lift 0 °
Camshaft Runout - Front and Rear, 1 and 4 0.025 mm (0.0010 in.)
Camshaft Runout - Middle 2 and 3 0.050 mm (0.0020 in.)
Camshaft Timing @ 0.15 mm ( (0.0059 in) Lift
Valve Opens - Exhaust 229 ° BTDC
Valve Opens - Intake 14 ° ATDC
Centerline - Exhaust 111 ° ATDC
Centerline - Intake 132 ° ATDC
Valve Closes - Exhaust 9 ° ATDC
Valve Closes - Intake 252 ° ATDC
Valve Lift - Exhaust 10.95 mm (0.431 in.)
Valve Lift - Intake 10.95 mm (0.431 in.)
Camshaft Phasing
Intake 0- -50� Crank (advance)
Exhaust 0- +50� Crank (retard)
Cooling System
Thermostat Start Opening Temperature 82°C +/- 2°C 179.6°F +/- 3.6°F
Thermostat Full Open Temperature 95°C 203°F
Connecting Rod
Connecting Rod Bearing Clearance 0.010-0.070 mm (0.0004-0.0028 in.)
Connecting Rod Bore Diameter - Bearing End 59.620-59.636 mm (2.3472-2.3479 in.)
Connecting Rod Bore Diameter - Pin End 24.007-24.021 mm (0.9452-0.9457 in.)
Connecting Rod Length - Center to Center 150.4 mm (5.921 in.)
Connecting Rod Side Clearance 0.095-0.355 mm (0.0037-0.0140 in.)
Connecting Rod Width - Bearing End
Production 21.775 mm (0.8573 in.)
Service 21.770-21.780 mm (0.8571-0.8575 in.)
Connecting Rod Width - Pin End
Production 26.000 mm (1.0236 in.)
Service 25.950-26.050 mm (1.0217-1.0256 in.)
Crankshaft
Connecting Rod Journal Diameter 55.992-56.008 mm (2.2044-2.2050 in.)
Connecting Rod Journal Out-of-Round 0.005 mm (0.0002 in.)
Connecting Rod Journal Taper 0.005 mm (0.0002 in.)
Connecting Rod Journal Width
Production 22.000 mm (0.8661 in.)
Service 21.920-22.080 mm (0.8630-0.8693 in.)
Crankshaft End Play 0.100-0.330 mm (0.0039-0.0130 in.)
Crankshaft Main Bearing Clearance 0.010-0.060 mm (0.0004-0.0024 in.)
Crankshaft Main Journal Diameter 67.992-68.008 mm (2.676-2.677 in.)
Crankshaft Main Journal Out-of-Round 0.005 mm (0.0002 in.)
Crankshaft Main Journal Taper 0.005 mm (0.0002 in.)
Crankshaft Main Journal Thrust Wall
Runout 0.000-0.040 mm (0.0000-0.0016 in.)
Square 0.000-0.010 mm (0.0000-0.0004 in.)
Crankshaft Main Journal Width, #1, 2, 4
Production 24.000 mm (0.9449 in.)
Service 23.900-24.100 mm (0.9409-0.9488 in.)
Crankshaft Main Journal Width, #3
Production 24.400 mm (0.9606 in.)
Service 24.360-24.440 mm (0.9591-0.9622 in.)
Crankshaft Pilot Bearing Bore Diameter 20.965-20.995 mm (0.8254-0.8266 in.)
Crankshaft Rear Flange Runout 0.025 mm (0.0010 in.)
Crankshaft Reluctor Ring Runout - Maximum 0.5 mm (0.0020 in.)
Crankshaft Runout 0.030 mm (0.0012 in.)
Crankshaft Thrust Bearing Clearance 0.076-0.305 mm (0.0030-0.0120 in.)
Crankshaft Thrust Surface - Height Diameter 95.000 mm (3.7401 in.)
Crankshaft Thrust Surface Runout 0.040 mm (0.0016 in.)
Cylinder Head
Combustion Chamber Volume 54.5 cc 3.325 cu in.)
Valve Guide Bore - Exhaust 6.005-6.025 mm (0.2362-0.2370 in.)
Valve Guide Bore - Intake 6.005-6.025 mm (0.2362-0.2370 in.)
Valve Guide Installed Height 14.050-14.550 mm (0.5531-0.5728 in.)
Valve Lifter Bore Diameter 12.008-12.030 mm (0.4728-0.4736 in.)
Lubrication System
Oil Capacity - Wet Fill With Oil Filter Change 6.7 Liters 7.1 Quarts
Oil Pressure - Minimum at Idle 74 kPa 10 psi
Oil Pressure - Minimum at 2,000 RPM 377 kPa 54 psi
Piston Cooling Jet Valve Opening Pressure 1.8-2.2 bar 26-32 psi
Oil Pump
Gear Diameter - Outer 87.095-87.175 mm (3.4289-3.4321 in.)
Gear Pocket - Depth 15.565-15.600 mm (0.6128-0.6142 in.)
Gear Pocket - Diameter 87.275-87.325 mm (3.4360-3.4380 in.)
Gear Thickness - Drive/Driven 15.511-15.536 mm (0.6107-0.6117 in.)
Gear-to-Cover Clearance - Drive/Driven 0.030-0.085 mm (0.0012-0.0033 in.)
Gear-to-Housing Clearance - Drive/Driven 0.100-0.230 mm (0.0039-0.0091 in.)
Inner Gear Tip Clearance 0.075-0.180 mm (0.0030-0.0071 in.)
Crankshaft Clearance to Housing 0.040-0.130 mm (0.0016-0.0051 in.)
Inner Gerotor Hub Diameter 53.310-53.335 mm (2.0988-2.0998 in.)
Housing Hub Diameter 53.380-53.420 mm (2.1016-2.1031 in.)
Inner Gerotor Hub Clearance to Housing 0.045-0.110 mm (0.0018-0.0043 in.)
Piston Ring End Gap
First Compression Ring 0.150-0.300 mm (0.0059-0.0118 in.)
Second Compression Ring 0.280-0.480 mm (0.0110-0.0189 in.)
Oil Control Ring 0.150-0.600 mm (0.0059-0.0236 in.)
Piston Ring to Groove Clearance
First Compression Ring 0.030-0.065 mm (0.0012-0.0026 in.)
Second Compression Ring 0.015-0.060 mm (0.0006-0.0024 in.)
Oil Control Ring 0.030-0.170 mm (0.0012-0.0669 in.)
Piston Ring Thickness
First Compression Ring 1.175-1.190 mm (0.0463-0.0469 in.)
Second Compression Ring 1.470-1.495 mm (0.0579-0.0589 in.)
Oil Control Ring 2.360-2.480 mm (0.0929-0.0976 in.)
Pistons and Pins
Piston Diameter 93.956-93.974 mm (3.5022-3.5029 in.)
Piston Pin Bore Diameter 24.005-24.009 mm (0.9452-0.9454 in.)
Piston Ring Groove Width - First Compression Ring 1.220-1.240 mm (0.0480-0.0488 in.)
Piston Ring Groove Width - Second Compression Ring 1.510-1.530 mm (0.0595-0.0602 in.)
Piston Ring Groove Width - Oil Control Ring 2.510-2.530 mm (0.0988-0.0996 in.)
Piston to Bore Clearance 0.026-0.052 mm (0.0008-0.0013 in.)
Pin
Piston Pin Clearance to Connecting Rod Bore 0.007-0.024 mm (0.0003-0.0010 in.)
Piston Pin Clearance to Piston Pin Bore 0.004-0.015 mm (0.0003-0.0006 in.)
Piston Pin Diameter 23.997-24.000 mm (0.9448-0.9449 in.)
Piston Pin Length 60.6004-61.100 mm (2.5685-2.5882 in.)
Valve System
Valve Face Angle 44.25 °
Valve Face Runout 0.038 mm (0.0015 in.)
Valve Face Width - Exhaust 2.750 mm (0.1083 in.)
Valve Face Width - Intake 2.180 mm (0.0858 in.)
Valve Head Diameter- Exhaust 30.470-30.730 mm (1.199-1.209 in.)
Valve Head Diameter- Inlet 36.830-37.090 mm (1.45-1.46 mm (
Valve Installed Height 35.26-36.69 mm (1.3870-1.4445 in.)
Valve Length - Exhaust 97.11 mm (3.8232 in.)
Valve Length - Intake 101.23 mm (3.9854 in.)
Valve Seat Angle - Seating Surface 45 °
Valve Seat Angle - Relief Surface 30 °
Valve Seat Angle - Undercut Surface 60 °
Valve Seat Runout - Maximum 0.080 mm (0.0031 in.)
Valve Seat Width - Exhaust Seating Surface 1.400-1.800 mm (0.0551-0.0709 in.)
Valve Seat Width - Intake Seating Surface 1.000-1.400 mm (0.0394-0.0551 in.)
Valve Stem Diameter - Exhaust 5.955-5.975 mm (0.2344-0.2352 in.)
Valve Stem Diameter - Intake 5.955-5.975 mm (0.2344-0.2352 in.)
Valve Stem-to-Guide Clearance - Exhaust 0.040-0.08 mm (0.0014-0.0030 in.)
Valve Stem-to-Guide Clearance - Intake 0.030-0.070 mm (0.0010-0.0026 in.)
Valve Lifter Diameter 11.986-12.000 mm (0.4720-0.4724 in.)
Valve Lifter-to-Bore Clearance 0.037-0.041 mm (0.0015-0.0016 in.)
Rocker Arms
Valve Rocker Arm Ratio 1.68 to 1
Valve Rocker Arm Roller Diameter 17.740-17.800 mm (0.6987-0.7008 in.)
Valve Springs
Valve Spring Coil Thickness 3.250 x 3.900 mm (0.1280 x 0.1535 in.)
Valve Spring Diameter - Inside Top 12.200-12.700 mm (0.4760-0.4957 in.)
Valve Spring Diameter - Outside Top 18.00-18.450 mm (0.7087-0.7264 in.)
Valve Spring Diameter - Inside Bottom 17.950-20.500 mm (0.7067-0.8071 in.)
Valve Spring Diameter - Outside Bottom 26.000 mm (1.0236 in.)
Valve Spring Free Length 42.500-45.500 mm (1.6555-1.7657 in.)
Valve Spring Installed Height - Closed 35.000 mm (1.3779 in.)
Valve Spring Installed Height - Open 24.000 mm (0.9449 in.)