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page 56
Section 02
Engine Servicing and Adjustments
- main bearing housing
02.43 MAIN BEARING HOUSING
The main bearing housing is secured to the
crankcase at the flywheel end and has an oil drain
which must be located towards the bottom of the
crankcase when the housing is refitted. Shims are
fitted between the housing and the crankcase to
maintain the crankshaft end float. An oil seal is fitted
to the centre bore of the housing and an '0' ring is
fitted in the side of the bearing housing to provide a
seal between the housing and bearing oil feed drilling
in the crankcase.
On engines fitted with battery charging equipment
the stator is secured to the main bearing housing with
screws.
If the crankshaft is moved towards the flywheel end
after the housing has been removed the thrust washer
at the gear end could become detached from its
recess. This can be avoided by removing the gear end
cover and placing two suitable thin strips of metal
between the crankshaft pinion and the crankcase.
To prevent the thrust washer at the flywheel end
becoming detached from the main bearing housing
while removing the housing, turn the engine until No.
1 cylinder piston is at the BDC position.
Removing the Main Bearing Housing
1. Remove the centre bearing locating dowel securing
screw (A) from the fuel pump side of the engine.
CAUTION
Failure to remove the dowel may result in distorting it
making it difficult to remove at a later stage.
2. Using a fuel pump securing bolt remove the centre
bearing dowel (B); leave the bolt in the dowel until
it is refitted to ensure the dowel is fitted the correct
way round.
Figure 2.43.1 Centre Bearing Dowel
3. Remove the bolts securing the main bearing
housing.
4. On early TS engines remove the charge winding
adaptor adapter.
5. Remove the bearing housing: if it is tight use two
M8 setscrews through the threaded holes provided
and jack it off.
6. Drift out the oil seal taking care not to damage the
bearings.
Refitting the Main Bearing Housing
When refitting the housing ensure that the oil supply
holes line up and the grooved bearing shell is fitted at
the top.
1. Lightly grease the steel back of the thrust washers
and position them in the housing, ensure they are
correctly located and the copper face will be
towards the crankshaft.
2. Remove the oil seal from the main bearing housing.
3. Coat the bearing housing face with Loctite 221, fit
a shim and coat the outside face of the shim.
Continue adding and coating the remaining shims.
4. Replace the housing and charge winding adaptor,
if fitted, and torque the bolts to 27.0Nm (20.0lbf ft).
5. Check the crankshaft endfloat.
6. Replace the oil lip seal.
7. Replace the centre bearing locating dowel/s with
the tapped end facing outwards.
8. Replace the locating dowel securing screw and
torque it to 20.5Nm (15.0lbf ft).
CAUTION
Striking the crankshaft may displace the thrustwashers
and damage the bearing locating dowel.
The Main Bearing Oil Lip Seal
1. Place the new seal squarely into the housing; do
not use any jointing compound.
2. Hold the oil seal tool onto the outside face of the
seal and using the oil seal tool, drive in the seal
until the tool shoulder is against the bearing
housing.
Содержание TR1
Страница 1: ...TS TR TX Workshop Manual Edition 12 May 2005 Publication P027 08221 ...
Страница 2: ...page 2 ...
Страница 80: ...page 80 Section 05 Routine Maintenance TS TR wearing parts TS TR Wearing Parts ...
Страница 81: ...page 81 Section 05 Routine Maintenance TS TR wearing parts TS TR Wearing Parts ...
Страница 82: ...page 82 Section 05 Routine Maintenance TX wearing parts TX Wearing Parts ...
Страница 83: ...page 83 Section 05 Routine Maintenance TX wearing parts TX Wearing Parts ...
Страница 90: ...page 90 Section 07 Flywheel Charge Windings Syncro Syncro Fault Finding Flow Charts ...
Страница 91: ...page 91 Section 07 Flywheel Charge Windings Syncro Syncro Fault Finding Flow Charts ...
Страница 93: ...page 93 Nicsa Fault Finding Flow Charts Section 07 Flywheel Charge Windings Nicsa ...
Страница 94: ...page 94 Section 07 Flywheel Charge Windings Nicsa Nicsa Fault Finding Flow Charts ...
Страница 95: ...page 95 Section 07 Flywheel Charge Windings Nicsa Nicsa Fault Finding Flow Chart ...
Страница 96: ...page 96 ...
Страница 98: ...page 98 Section 08 Electrical Wiring Diagrams ...
Страница 99: ...page 99 Section 08 Electrical Wiring Diagrams ...
Страница 100: ...page 100 Section 08 Electrical Wiring Diagrams ...
Страница 101: ...page 101 Section 08 Electrical Wiring Diagrams ...
Страница 102: ...page 102 Section 08 Electrical Wiring Diagrams ...
Страница 103: ...page 103 Section 08 Electrical Wiring Diagrams ...
Страница 104: ...page 104 ...
Страница 115: ...page 115 Section 11 Index Section 11 Index a ...
Страница 121: ...Technical Library http engine od ua ...