9
Specifications
Main bearing shells
Type ....................................................................... Steel coated, aluminum tin
Bearing width,
center bearing ................................................... 24.27-24.52 mm
other bearings ................................................... 22.35-22.60 mm
Bearing thickness .................................................. 1.828-1.835 mm
Inner diameter........................................................ 57.033-57.063 mm
Bearing clearance .................................................. 0.023-0.073 mm
Permissible lower dimensions of bearings............ -0.30 mm
Big end bearing shells
Type ....................................................................... Steel coated, copper-lead
Thickness .............................................................. 1.815-1.825 mm
Inner diameter........................................................ 54.033-54.066 mm
Bearing clearance .................................................. 0.023-0.076 mm
Permissible lower dimensions of bearing shells ... -0.30 mm
Crankshaft thrust washers
Type ....................................................................... Steel coated, aluminum solder
Position .................................................................. Both sides of the center bearing
Thickness .............................................................. 2.31-2.36 mm
Connecting rods
Type ....................................................................... H-section
Diameter, bearing position of the big end shells ... 57.683-57.696 mm
Diameter, bearing position of the connecting
rod bushing ............................................................ 30.93-30.96 mm
Distance between bearing centers ........................ 144.98-145.03 mm
Connecting rod bushing
Type ....................................................................... Steel coated, lead bronze
Inner diameter (reamed) ........................................ 28.005-28.018 mm
Clearance between connecting rod bushing
and piston bolt........................................................ 0.05-0.023 mm
Alignment of connecting rod (A)
The holes for the big end bearing shells and the connecting
rod bushing must be at right angles and parallel with each other
within a ± 0.25 mm tolerance, measured with a mandrel at
a distance of 127 mm on each side of the connecting rod.
With the connecting rod bushing installed, the tolerance
is reduced to ± 0.06 mm.
Flywheel
Maximum radial runout .......................................... 0.30 mm total read off on the dial indicator
Max. axial runout
for every 25
th
mm radial clearance
between the crankshaft and the gauge tip on
the indicator. ..................................................... 0.03 mm total read off on the dial indicator
Flywheel cover
Concentric and parallel limits ................................ 0.15 mm total read off on the dial indicator
(88 Seiten)
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