Main bearing journals
Diameter, standard
0.300 mm (0.0120”) undersize
0.600 mm (0.0236’) undersize
49.984—50.000 mm (1 .9679—1.9685”)
49.684—49.700 mm (1.9560—1.9567”)
49.384—49.400 mm (1.9442—1.9449”)
Main bearing shells
Thickness, standard
0.300 mm (0.0120”) oversize
0.600 mm (0.0236”) oversize
1.730—1.737 mm (0.0681—0.0684)
1.880—1 .887 mm (0.0740—0.0743”)
2.030—2.037 mm (0.0799—0.0802”)
Big-end journals
Diameter, standard
0.300 mm (0.0120”) undersize
0.600 mm (0.0236”) undersize
49.984-50.000 mm (1.9679—1.9685”)
49.684—49.700 mm (1.9560—1.9567”)
49.384—49.400 mm (1.9442—1.9449”)
Big-end bearing
Thickness, standard
0.300 mm (0.0120”) oversize
0.600 mm (0.0236”) oversize
1.730—1.737 mm (0.0681—0.0684”)
1.880—1.887 mm (0.0740—0.0743”)
2.030—2.037 mm (0.0799—0.0802”)
Connecting rods
End play at crankshaft
0.25—0.50 mm (0.0100—0.0200”)
Camshaft
End play
Radial clearance in bearing
Camshaft diameter
Lift height of cams
Bushing, diameter
0.160—0.300 mm (0.0063—0.0118”)
0.01 8—0.083 mm (0.007—0.0033”)
43.992—44.008 mm (1 .7320—1.7326”)
5.48—5.52 mm (0.2157—0.2173”)
44.026—44.075 mm (1 .7333—1.7352”)
Cylinder head
Material
Special-alloy cast iron
Intake valves
Disc diameter
Stem diameter
Valve seat angle
Cylinder head seat angle
Width of seat in cylinder head
Clearance, hot engine
32.4—32.6 mm (1.2756—1.2835”)
7.955—7.970 mm (0.3132—0.3138”)
45° 15’ - 45° 45’
45°
approx 1 mm (0.040”)
0.30 mm (0.012”)
Exhaust valves
Disc diameter
Stem diameter
Valve seat angle
Cylinder head seat angle
Width of seat in cylinder head
Clearance, hot engine
27.4-27.6 mm (1.0787—1.0866”)
7.950—7.965 mm (0.3130—0.3136)
45° 15’ - 45° 45’
45°
approx 1 mm (0.040”)
0.30 mm (0.012”)
Valve guides
Length, intake valve
Length, exhaust valve
Bore
Height above cylinder head spring face
Clearance, valve stem-guide:
intake valve
38 mm (1 .4961”)
38 mm (1 .4961”)
8.0—8.015 mm (0.3150—0.3156”)
8.85—9.15 mm (0.3484—0.3602”)
0.03—0.06 mm (0.0012—0.0024”)
0.035—0.065 mm (0.0014—0.0026”)
exhaust valve
40
| Categories | Volvo Penta Manuals |
|---|---|
| Tags | Volvo Penta MD6A, Volvo Penta MD7A |
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| Copyright | Attribution Non-commercial |
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