3-3
3
Specifications*
* Specifications subject to change without notice.
VALVES AND GUIDES
Valve Face Diameter (intake)
(exhaust)
30.6 mm (1.20 in.)
27.0 mm (1.06 in.)
Valve/Tappet Clearance
(intake)
(cold engine)
(exhaust)
0.076-0.127 mm
(0.003-0.005 in.)
0.152-0.203 mm
(0.006-0.008 in.)
Valve Guide/Stem Clearance (intake)
(max)
(exhaust)
0.04 mm
(0.0016 in.)
0.06 mm
(0.0024 in.)
Valve Guide/Valve Stem
(max)
Deflection (wobble method)
0.35 mm (0.014 in.)
Valve Guide Inside Diameter 5.000-5.015 mm
(0.1969-0.1974 in.)
Valve Stem Outside Diameter (intake)
(exhaust)
4.975-4.990 mm
(0.1959-0.1965 in.)
4.955-4.970 mm
(0.1951-0.1957 in.)
Valve Stem Runout (max) 0.05 mm (0.002 in.)
Valve Head Thickness (intake)
(exhaust)
2.03 mm (0.08 in.)
2.28 mm (0.09 in.)
Valve Face/Seat Width (min) (intake)
(exhaust)
2.25 mm (0.089 in.)
2.55 mm (0.100 in.)
Valve Seat Angle (intake/exhaust) 45°
Valve Face Radial Runout (max) 0.03 mm (0.001 in.)
Valve Spring Free Length (min) 42.8 mm (1.69 in.)
Valve Spring Tension
(outer)
@ 32.5 mm (1.28 in.)
18.6-21.4 kg
(41-47 lb)
CAMSHAFT AND CYLINDER HEAD
Cam Lobe Height (min) (intake/exhaust)
13.46 mm (0.530 in.)
Camshaft Journal Oil Clearance (max) 0.081 mm (0.003 in.)
Camshaft Journal Holder
(right & center)
Inside Diameter
(left)
22.01-22.04 mm
(0.8665-0.8677 in.)
17.51-17.54 mm
(0.6893-0.6905 in.)
Camshaft Journal
(right & center)
Outside Diameter
(left)
21.959-21.980 mm
(0.8645-0.8654 in.)
17.466-17.480 mm
(0.6876-0.6882 in.)
Camshaft Runout (max) 0.03 mm (0.0012 in.)
Rocker Arm Inside Diameter 12.000-12.018 mm
(0.472-0.473 in.)
Rocker Arm Shaft Outside Diameter 11.975-11.987 mm
(0.4715-0.4719 in.)
Cylinder Head Distortion (max) 0.05 mm (0.002 in.)
Cylinder Head Cover Distortion (max) 0.05 mm (0.002 in.)
CYLINDER, PISTON, AND RINGS
Piston Skirt/Cylinder Clearance 0.060-0.073 mm
(0.0024-0.0029 in.)
Piston Diameter 15 mm (0.6 in.)
from Skirt End
80.98-81.00 mm
(3.188-3.189 in.)
Piston Ring Free End Gap (min)
(1st)
(2nd)
8.0 mm (0.3150 in.)
8.3 mm (0.3268 in.)
Bore x Stroke 81.0 x 71.2 mm
(3.19 x 2.80 in.)
Cylinder Trueness (max) 0.01 mm (0.0004 in.)
Piston Ring End Gap - Installed 0.15-0.30 mm
(0.006-0.012 in.)
Piston Ring to Groove (1st/2nd)
Clearance (max)
0.06 mm (0.002 in.)
Piston Ring Groove Width (1st)
(2nd)
(oil)
1.01-1.03 mm
(0.0398-0.0406 in.)
1.21-1.23 mm
(0.0476-0.0484 in.)
2.01-2.03 mm
(0.0791-0.0799 in.)
Piston Ring Thickness (1st)
(2nd)
0.97-0.99 mm
(0.0381-0.0389 in.)
1.17-1.19 mm
(0.0461-0.0469 in.)
Piston Pin Bore (max) 20.008 mm (0.7877
in.)
Piston Pin Outside Diameter (min) 19.994 mm (0.7872
in.)
CRANKSHAFT
Connecting Rod (max)
(small end inside diameter
20.021 mm
(0.7882 in.)
Connecting Rod
(big end side-to-side)
0.10-0.55 mm
(0.004-0.022 in.)
Connecting Rod (big end width) 21.95-22.00 mm
(0.8642-0.8661 in.)
Connecting Rod
(max)
(small end deflection)
0.3 mm (0.012 in.)
Crankshaft (web-to-web) 60.8-60.9 mm
(2.393-2.397 in.)
Crankshaft Runout (max) 0.03 mm (0.001 in.)
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