Engine - Engine and crankcase
Piston pins
Type
Fully floating
Outside diameter
31.740 - 31.750 mm
(
1.250 - 1.250 in
)
Fit in piston boss
Transition
Small end bushes
Type
Steel backed, lead bronze lined
Outside diameter
35.010 - 35.050 mm
(
1.378 - 1.380 in
)
Length
26.420 - 26.870 mm
(
1.040 - 1.058 in
)
Inside diameter after reaming
31.760 - 31.790 mm
(
1.250 - 1.252 in
)
Clearance, bushing to piston pin
0.0100 - 0.0400 mm
(
0.0004 - 0.0016 in
)
Connecting rods
Type
“H” Section
Big end parent bore diameter
60.830 - 60.850 mm
(
2.395 - 2.396 in
)
Small end parent bore diameter
34.920 - 34.960 mm
(
1.375 - 1.376 in
)
Big end width
39.380 - 39.430 mm
(
1.550 - 1.552 in
)
Big end side clearance on crankpin
0.240 - 0.500 mm
(
0.009 - 0.020 in
)
Length between bore centres
223.810 - 223.860 mm
(
8.811 - 8.813 in
)
Permissible connecting rod bend (measured at a
distance of
127.00 mm
(
5.00 in
))
Without small end bush
± 0.2500 mm
(
0.0098 in
)
With small end bush fitted
± 0.0600 mm
(
0.0024 in
)
NOTE:
The numbered side on connecting rod and cap should be on the fuel injection pump side.
Connecting rod bearing
Type
Pre-finished, steel backed aluminium tin/ copper lead
Inside diameter
57.190 - 57.210 mm
(
2.252 - 2.252 in
)
Bearing running clearance
0.060 - 0.100 mm
(
0.002 - 0.004 in
)
Crankcase - General specification
TT35 / TT40 models
Crankshaft
Main journal diameter (std)
69.8100 - 69.8300 mm
(
2.7480 - 2.7490 in
)
Main journal length - number 2 and 3
30.8500 - 31.0600 mm
(
1.2150 - 1.2230 in
)
Main journal length - rear
46.8000 - 46.8800 mm
(
1.8430 - 1.8460 in
)
Main journal fillet radius (except last main journal)
3.1700 - 3.5600 mm
(
0.1250 - 0.1400 in
)
Last main journal fillet radius
3.9700 - 4.2200 mm
(
0.1560 - 0.1660 in
)
Crank pin diameter (std)
57.1100 - 57.1300 mm
(
2.2480 - 2.2490 in
)
Crank pin length
39.6700 - 39.8800 mm
(
1.5620 - 1.5700 in
)
Crank pin radius
4.7600 - 5.1600 mm
(
0.1870 - 0.2030 in
)
Surface finish - all pins and journals
0.4000 mm
(
0.0160 in
) (max)
Crankshaft end float
0.0500 - 0.3800 mm
(
0.0020 - 0.0150 in
)
Re-grind undersize - main journals and pins
0.2500 mm
(
0.0100 in
),
0.5100 mm
(
0.0200 in
),
0.7600 mm
(
0.0300 in
)
Crankshaft thrust washer
Type
Pre-finished steel backed, aluminium tin / copper lead
Position in engine
Cylinder block, rear main, bearing housing
Thrust washer thickness - standard
3.0700 - 3.1200 mm
(
0.1209 - 0.1228 in
)
Thrust washer thickness - oversize
3.2600 - 3.3100 mm
(
0.1283 - 0.1303 in
)
Main bearing
Type
Pre-finished steel backed, aluminium tin / copper lead
Inside diameter (fitted)
69.9000 - 69.9400 mm
(
2.7520 - 2.7540 in
)
Main bearing running clearance
0.6860 - 0.1270 mm
(
0.0270 - 0.0050 in
)
47899736 29/09/2015
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