Specifications

DESCRIPTION SPECIFICATIONS
Protrusion ....................0.01–0.06 mm
Adjustment .........................Shims
Available Shims: ...................0.15 mm
Available Shims: ...................0.17 mm
Available Shims: ...................0.20 mm
Available Shims: ...................0.23 mm
Available Shims: ...................0.25 mm
Cylinder Head
Minimum Thickness ..........89.95–90.05 mm
Gasket .............................Steel
Gasket thickness: .......1.42 6 0.1 mm 0 Holes
Gasket thickness: .......1.62 6 0.1 mm 1 Holes
Gasket thickness: .......1.52 6 0.1 mm 2 Holes
End Plates
Height .....................89.02–90.00 mm
Connecting Rods
Weight
(Without the crank bearing) . . . 1129–1195 grams
Small End Bearing Internal Diameter
Minimum .......................30.035 mm
Maximum ......................30.050 mm
Crankshaft Bearings
Standard Internal Diameter . . 53.997–54.016 mm
Pistons
Skirt Diameter ............91.935–91.945 mm
(Measured at approximately
15 mm above the bottom of the skirt)
Piston Clearance .............0.055–0.075 mm
Top of Piston to Cylinder Head ....0.80–0.89 mm
Piston Protrusion .....0.53–0.62 mm Fit Gasket
(1.42), 0 Holes
Piston Protrusion .....0.73–0.82 mm Fit Gasket
(1.62), 1 Holes
Piston Protrusion .....0.63–0.72 mm Fit Gasket
(1.52), 2 Holes
Piston Pins
Type .........................Full Floating
Pin Diameter ..............29.990–29.996 mm
Clearance ..................0.004–0.014 mm
Piston Rings (Clearance in Groove)
Top .......................0.080–0.130 mm
Second .....................0.070–0.102 mm
Oil Control .................0.040–0.072 mm
Piston Rings (Fitted Gap)
Top .........................0.25–0.50 mm
Second ......................0.20–0.35 mm
Oil Control ...................0.25–0.58 mm
Camshaft
Journal Diameter Front .....53.460–53.480 mm
Bearing Clearance .............0.06–0.13 mm
Journal Diameter Center ....53.460–53.480 mm
Bearing Clearance .............0.06–0.13 mm
Journal Diameter Rear ......53.460–53.480 mm
Bearing Clearance .............0.06–0.13 mm
DESCRIPTION SPECIFICATIONS
Tappets
Outside Diameter ..........22.195–22.212 mm
Rocker Gear
Shaft Diameter .............21.979–22.00 mm
Bushing internal diameter . . . 22.020–22.041 mm
Assembly Clearance ..........0.020–0.062 mm
Valves (Intake)
Opens ........................26°B.T.D.C.
Closes ........................58°A.B.D.C.
Valves (Exhaust)
Opens ........................64°B.B.D.C.
Closes ........................38°A.T.D.C.
Valve Face Angle
Intake .......................55°30’– 55°50’
Exhaust .....................45°25’– 45°35’
Valve Head Diameter
Intake .....................40.05–40.25 mm
Exhaust .....................33.8–34.0 mm
Valve Head Stand Down
Intake .......................1.08–1.34 mm
Exhaust .....................1.99–1.25 mm
Valve Stem Diameter
Intake .....................7.940–7.960 mm
Exhaust ....................7.922–7.940 mm
Valve Clearance in Guide
Intake .....................0.040–0.075 mm
Exhaust ....................0.060–0.093 mm
Valve Guide
Inside Diameter ...............8.0–8.015 mm
Fitted Height .................13.5–14.0 mm
Valve Spring
Free Length .....................44.65 mm
Fitted Length .....................38.6 mm
Load at Fitted Length ............3466% Kg
Load at Top of Lift .............92.5 6 4% Kg
Number of Coils ............5.33 Valve Timing
Oil Pressure
at 4000 rpm ...................3.0to4.5bar
(Oil at 90–100°C)
Pressure Relief Valve Opens ..........6.38 bar
Pressure Relief Valve–Free Length .....57.5 mm
Oil Pump
Outer Rotor End Float ..........0.03–0.09 mm
Inner Rotor End Float ..........0.03–0.09 mm
Outer Rotor to Body
Diameter Clearance ..........0.130–0.230 mm
Rotor Body to Drive Gear Clearance
(Pump Not Fitted) .............3.27–3.73 mm
TORQUE
DESCRIPTION TORQUE
Generator Mounting Bracket
Bolts ....................47N·m(35ft.lbs.)
9 - 78 ENGINE NS/GS
SPECIFICATIONS (Continued)