Inspecting the crankcase halves
- Before proceeding to check the crankcase
halves, thoroughly clean all surfaces and oil ducts.
- On the transmission-side crankcase half, take
particular care when handling the oil pump com-
partment and the oil ducts, the by-pass duct, the
main bushings and the cooling jet on the trans-
mission side (see diagram).
- Take particular care, also, that there are no signs
wear in the oil by-pass valve housing (see Chapter
Lubrication), as this could prevent a good seal in
the valve, which regulates the oil pressure.
- On the flywheel side crankcase half, take partic-
ular care cleaning the oil ducts for the main bush-
ings, the oil duct for the jet that lubricates the
cylinder head and the oil drainage duct at the fly-
wheel side oil seal.
- Inspect the coupling surfaces on the crankcase
halves for scratches or deformation, taking partic-
ular care with the cylinder/crankcase surfaces and
the crankcase halves surfaces.
- Defects in the crankcase coupling gasket be-
tween the crankcase halves or the mating surfaces
shown in the diagram, could cause a drop in the
oil pressure lubricating the main bearings and con-
nection rod.
- Check the main bearing seats that limit axial
clearance in the crankshaft show no signs of wear.
The dimension between these seats is measured
by way of the procedure described previously for
measuring the crankshaft axial clearance and di-
mensions.
N.B.
THE JET IS FED THROUGH THE MAIN BUSHINGS. PROP-
ER OPERATION OF THIS COMPONENT IMPROVES THE
PISTON TOP COOLING. CLOGGING HAS EFFECTS THAT
ARE DIFFICULT TO DETECT (PISTON TEMPERATURE IN-
CREASE). FAILURE OR LEAK CAN CONSIDERABLY DE-
CREASE THE MAIN BUSHING AND CONNECTING ROD
LUBRICATION PRESSURE.
N.B.
Engine
Beverly 125
ENG - 138
Содержание Beverly Tourer 125
Страница 4: ......
Страница 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR...
Страница 22: ...INDEX OF TOPICS TOOLING TOOL...
Страница 35: ...INDEX OF TOPICS MAINTENANCE MAIN...
Страница 51: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL...
Страница 57: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS...
Страница 80: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE...
Страница 83: ...INDEX OF TOPICS ENGINE ENG...
Страница 142: ...Lubrication Conceptual diagrams LUBRICATION CIRCUIT Engine Beverly 125 ENG 142...
Страница 143: ...Beverly 125 Engine ENG 143...
Страница 157: ...Remove the maximum nozzle Remove diffuser Beverly 125 Engine ENG 157...
Страница 166: ...INDEX OF TOPICS SUSPENSIONS SUSP...
Страница 189: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS...
Страница 203: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS...
Страница 204: ...Circuit diagram 125 ENGINE Cooling system Beverly 125 COOL SYS 204...
Страница 206: ...Cooling system Beverly 125 COOL SYS 206...
Страница 211: ...INDEX OF TOPICS CHASSIS CHAS...
Страница 223: ...INDEX OF TOPICS PRE DELIVERY PRE DE...
Страница 227: ...INDEX OF TOPICS TIME TIME...
Страница 246: ...Frame CHASSIS Code Action Duration 1 004001 Chassis Replacement Time Beverly 125 TIME 246...
Страница 264: ...Seat SADDLE Code Action Duration 1 004003 Saddle Replacement Time Beverly 125 TIME 264...
Страница 265: ...Seat lock SADDLE LOCK MECHANISM Code Action Duration 1 004054 Saddle lock catch Replacement Beverly 125 Time TIME 265...
Страница 267: ...Rear rack LUGGAGE RACK Code Action Duration 1 004008 Luggage rack Replacement Beverly 125 Time TIME 267...
Страница 278: ...Tyres 10...