Lister Petter TR1, Руководство по ремонту

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page 58
Refitting the Crankshaft
1. If necessary fit new bearing shells to the main
bearing housing, centre bearing housing/s and the
gear end crankcase main bearing.
The grooved bearing shell must be to the top and
the oil holes must be lined up.
2. Re-assemble the centre main bearing housing/s
around the crankshaft ensuring the socket screws
are tightened.
Ensure 'Flywheel End' on the housing halves is
correctly located before assembly.
3. Apply grease to the steel side of the thrust washers
and place them in the gear end of the crankcase
with the tab correctly located and the copper face
towards the crankshaft.
4. Offer up the crankshaft, lining up the centre bearing
to ensure each dowel hole is in the correct position.
Take special care when passing the crankshaft
through the gear end bearing as it is quite easy to
score the bearing shell with the crankshaft.
5. With the fuel pump bolt inserted in the centre
bearing dowel (B), insert the dowel through the
crankcase wall and into the centre bearing housing.
Figure 2.44.3 Centre Bearing Dowel
CAUTION
Ensure the dowel has gone fully home and that it is not
abutting the main bearing housing shoulder or capscrew
recess.
Figure 2.44.4 Dowel Hole Alignment
A - Dowel Hole
B - Capscrew Head Recess
6. Replace the locating dowel securing screw and
torque load it to 20.5Nm (15.0lbf ft).
7. Remove the fuel pump bolt from the dowel.
Section 02
Engine Servicing and Adjustments
- crankshaft
8. Refit the crankshaft balance weights, with the
stamped part numbers facing each other, and
torque load to 57.0Nm (42.0lbf ft).
Early balance weights only have one retaining
screw.
9. Lock the bolts by preening them with a centre
punch.
10.Replace the rear main bearing housing.
11. Check that the crankshaft is free to rotate.
12.Fit the Woodruff key at the gear end.
13.Heat the crankshaft pinion to straw yellow and fit it
to the crankshaft without delay ensuring the '0' mark
is facing outwards.
Insufficient heat or delay in fitting could well cause
the pinion to become jammed on the crankshaft,
whereas overheating may cause softening of the
pinion.
14.Check the crankshaft end float.