Specifications

GENERAL SPECIFICATION DATA
Connecting rods
Type ..............................................................
Length between centres ......................................
Horizontally split big end, plain small end
175,38 - 175,43 mm (6.905 - 6.907 in)
Big end bearings
Type and material .............................................
Diametrical clearance ........................................
End - float on crankpin. .......................................
Steel shell, copper - lead lined
0,020
- 0,0635 mm (0.0008 - 0.0025 in)
0,15 - 0,356 mm (0.006 - 0.014 in)
Gudgeon pins
Type .............................................................. Floating
Fit in piston .....................................................
Clearance in connecting rod ................................
Diameter ........................................................
Push fit by hand
0,0196
- G,0036 mm (0.0007 - 0.00014 in)
30,1564
- 30,1625 mm (1.18726 - 1.1875 in)
Pistons
-.
Type.. ............................................................
Clearance in bore, measured at bottom of skirt at
right angles to gudgeon pin:
Aluminium alloy, with
V shape recess in crown
Standard size pistons
......................................
Oversize pistons ............................................
0,111 - 0,134 mm (0.0044 - 0.0053 in)
0,111
- 0,157 mm (0.0044 - 0.0062 in)
Piston rings
Compression No. 1 (top):
Type
...........................................................
Gap in bore ..................................................
Clearance in groove.. ......................................
Gap in bore ..................................................
Compression Nos. 2 and 3:
Type
...........................................................
Clearance in groove ........................................
Type ...........................................................
Clearance in groove ........................................
Oil control No. 4:
Gap in bore
..................................................
Valves
Length:
Inlet
...........................................................
Exhaust.. .....................................................
Inlet ...........................................................
Exhaust .......................................................
Inlet ...........................................................
Exhaust.. .....................................................
Inlet ...........................................................
cxnausr .......................................................
Inlet ...........................................................
Exhaust.. .....................................................
Inlet ...........................................................
Exhaust .......................................................
Seat angle:
Head diameter:
Stem diameter:
-
Stem to guide clearance:
Valve lift:
Square friction edge, chrome plated
0,35 - 0,50 mm (0.014 - 0.019 in)
0,06 - 0,11 mm (0.0025 - 0.0045 in)
Bevelled friction edge. Marked 'T' or 'TOP' on upper side
0,25 - 0,38 mm (0.010 - 0.015 in)
0,06 - 0,11 mm (0.0025 - 0.0045 in)
Ring and spring
0,279
- 0,406 mm (0.011 - 0.016 in)
0,038
- 0,064 mm (0.0015 - 0.0025 in)
116,26 - 116,51 mm (4.377 - 4.587 in)
116,79 - 117,25 mm (4.598 - 4.616.in)
45 "
45 "
39,12 - 39,37 mm (1.540 - 1.550 in)
33,25 - 33,50 mm (1.309 - 1.318 in)
7,912
- 7,899 mm (0.3114 - 0.3109 in)
8,682
- 8,694 mm (0.3418 - 0.3422 in)
0,033
- 0,048 mm (0.0013 - 0.0019 in)
0,058 - 0,073 mm (0.0023 - 0.0029 in)
9,85 mm (0.388 in)
10,26 mm (0.404 in)
8