Cylinder Block Assembly: Specifications
Bore x Stroke 99.5 x 79.0 mm (2.917 x 3.110 inch)Piston displacement 2,457 cm3 (150 cubic inch)
Cylinder block
Surface warpage limit (mating with cylinder head) 0.05 mm (0.0020 inch)
Surface grinding limit 0.1 mm (0.004 inch)
Standard height 201.0 mm (7.91 inch)
Cylinder bore
STD
A 99.505 - 99.515 mm (3.9175 - 3.9179 inch)
B 99.495 - 99.505 mm (3.9171 - 3.9175 inch)
Taper
STD 0.015 mm (0.0006 inch)
Limit 0.050 mm (0.0020 inch)
Out-of-roundness
STD 0.010 mm (0.0004 inch)
Limit 0.050 mm (0.0020 inch)
Piston clearance
STD -0.010 - 0.010 mm (-0.0004 - 0.0004 inch)
Limit 0.030 mm (0.0012 inch)
Enlarging (boring) limit 0.5 mm (0.020 inch)
Piston
Outer diameter
STD
A 99.505 - 99.515 mm (3.9175 - 3.9179 inch)
B 99.495 - 99.505 mm (3.9171 - 3.9175 inch)
0.25 mm (0.0098 inch) OS 99.745 - 99.765 mm (3.9270 - 3.9278 inch)
0.50 mm (0.0197 inch) OS 99.995 - 100.015 mm (3.9368 - 3.9376 inch)
Piston pin
Standard clearance between piston pin and hole in piston
STD 0.004 - 0.008 mm (0.0002 - 0.0003 inch)
Limit 0.020 mm (0.0008 inch)
Degree of fit Piston pin must be fitted into position with thumb at 20°F (68°F).
Piston ring
Piston ring gap
Top ring
STD 0.20 - 0.25 mm (0.0079 - 0.0098 inch)
Limit 1.0 mm (0.039 inch)
Second ring
STD 0.37 - 0.52 mm (0.015 - 0.020 inch)
Limit 1.0 mm (0.039 inch)
Oil ring
STD 0.20 - 0.50 mm (0.0079 - 0.020 inch)
Limit 1.5 mm (0.059 inch)
Clearance between piston ring and piston ring groove
Top ring
STD 0.040 - 0.080 mm (0.0016 - 0.0031 inch)
Limit 0.15 mm (0.0059 inch)
Second
STD 0.030 - 0.070 mm (0.0012 - 0.0028 inch)
Limit 0.15 mm (0.0059 inch)
Connecting rod
Bend twist per 100 mm (3.94 inch) length
Limit 0.10 mm (0.0039 inch)
Side clearance
STD 0.070 - 0.330 mm (0.0028 - 0.0130 inch)
Limit 0.4 mm (0.016 inch)
Connecting rod bearing
Oil clearance
STD 0.017 - 0.045 mm (0.0007 - 0.0018 inch)
Limit 0.05 mm (0.0020 inch)
Thickness at center portion
STD 1.490 - 1.502 mm (0.0587 - 0.0591 inch)
0.03 mm (0.0012 inch) US 1.504 - 1.512 mm (0.0592 - 0.0595 inch)
0.05 mm (0.0020 inch) US 1.514 - 1.522 mm (0.0596 - 0.0599 inch)
0.25 mm (0.0098 inch) US 1.614 - 1.622 mm (0.0635 - 0.0639 mm)
Connecting rod bushing
Clearance between piston pin and bushing
STD 0 - 0.022 (0 - 0.0009 inch)
Limit 0.030 mm (0.0012 inch)
Crankshaft
Bend limit 0.035 mm (0.0014 inch)
Crank pin and crank journal
Out-of-roundness 0.005 mm (0.0002 inch) or less
Grinding limit 0.25 mm (0.0098 inch)
Crank pin outer diameter
STD 51.984 - 52.000 mm (2.0466 - 2.0472 inch)
0.03 mm (0.0012 inch) US 51.954 - 51.970 mm (2.0454 - 2.0461 inch)
0.05 mm (0.0020 inch) US 51.934 - 51.950 mm (2.0447 - 2.0453 inch) US
0.25 mm (0.0098 inch) US 51.734 - 51.750 mm (2.0368 - 2.0374 inch)
Crank journal outer diameter
#1, #3, #5
STD 59.992 - 60.008 mm (2.3619 - 2.3625 inch)
0.03 mm (0.0012 inch) US 59.962 - 59.978 mm (2.3607 - 2.3613 inch)
0.05 mm (0.0020 inch) US 59.942 - 59.958 mm (2.3599 - 2.3605 inch)
0.25 mm (0.0098 inch) US 59.742 - 59.758 mm (2.3520 - 2.3527 inch)
#2, #4
STD 59.992 - 60.008 mm (2.3619 - 2.3625 inch)
0.03 mm (0.0012 inch) US 59.962 - 59.978 mm (2.3607 - 2.3613 inch)
0.05 mm (0.0020 inch) US 59.942 - 59.958 mm (2.3599 - 2.3605 inch)
0.25 mm (0.0098 inch) US 59.742 - 59.758 mm (2.3520 - 2.3527 inch)
Thrust clearance
STD 0.030 - 0.115 mm (0.0012 - 0.0045 inch)
Limit 0.25 mm (0.0098 inch)
Oil clearance
#1
STD 0.003 - 0.030 mm (0.00012 - 0.0012 inch)
Limit 0.040 mm (0.0016 inch)
#2
STD 0.012 - 0.033 mm (0.0004 - 0.0012 inch)
Limit 0.045 mm (0.0018 inch)
#3
STD 0.003 - 0.030 mm (0.00012 - 0.0012 inch)
Limit 0.040 mm (0.0016 inch)
#4
STD 0.012 0.033 mm (0.0004 - 0.0012 inch)
Limit 0.045 mm (0.0018 inch)
#5
STD 0.010 0.031 mm (0.0004 - 0.0012 inch)
Limit 0.040 mm (0.0016 inch)
Crankshaft bearing
Crankshaft bearing thickness
#1, #3
STD 1.998 - 2.011 mm (0.0787 - 0.0792 inch)
0.03 mm (0.0012 inch) US 2.017 - 2.020 mm (0.0794 - 0.0795 inch)
0.05 mm (0.0020 inch) US 2.027 - 2.030 mm (0.0798 - 0.0799 inch)
0.25 mm (0.0098 inch) US 2.127 - 2.130 mm (0.0837 - 0.0839 inch)
#2, #4, #5
STD 2.000 - 2.013 mm (0.0787 - 0.0793 inch)
0.03 mm (0.0012 inch) US 2.019 - 2.022 mm (0.0795 - 0.0796
0.05 mm (0.0020 inch) US 2.029 - 2.032 mm (0.0799 - 0.0800 inch)
0.25 mm (0.0098 inch) US 2.129 - 2.132 mm (0.0838 - 0.0839 inch)
Crankshaft Pulley bolts 180 Nm (18.3 kgf-cm, 132.7 ft. lbs.)
Crankshaft side clearance
Standard 0.030 - 0.115 mm (0.0012 - 0.0045 inch)
Limit 0.25 mm (0.0098 inch)
Part 1:
Part 2:
Cylinder Block
Part 1:
Part 2:
Crankshaft and Piston
Connecting rod cap
For Cylinder block bolt sequences, refer to Engine; Service and Repair; Procedures; STI; Disassembly and Reassembly; Cylinder Block.
Disassembly and Assembly