Inspecting the crankcase halves
- Before proceeding to check the crankcase
halves, thoroughly clean all surfaces and oil ducts.
- For the transmission-side half-crankcase, special
attention should be given to the bushings, to the
cooling jet on the transmission side (see figure)
and to the lubrication duct.
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.
- For the flywheel side half-crankcase, special at-
tention should be given to the lubrication channels
for the main bearings and to the compartment and
the channels for the oil pump, as well as to the duct
for the by-pass located on the flywheel cover.
N.B.
AS ALREADY DESCRIBED IN THE "LUBRICATION" CHAP-
TER, IT IS ESPECIALLY IMPORTANT THAT THE BY-PASS
HOUSING ON THE FLYWHEEL COVER IS FREE FROM
WEAR THAT MAY IMPAIR THE PROPER SEALING OF THE
LUBRICATION PRESSURE ADJUSTMENT PISTON. THE
HEAD LUBRICATION CHANNEL IS EQUIPPED WITH A
SHUTTER JET; THIS GIVES A "LOW PRESSURE" HEAD
LUBRICATION. THIS CHOICE WAS MADE TO REDUCE
THE OIL TEMPERATURE IN THE SUMP.
The jet clogging impairs the head lubrication and the timing mechanisms.
A jet failure causes a decrease in the main bearing and connecting rod lubrication pressure.
- Check that the surfaces exhibit no dents or deformations, with special attention to the crankcase
coupling and the crankcase-cylinder surfaces.
- Any defects in the crankcase gasket or matching surfaces (see Flywheel cover coupling) can cause
pressurised oil leaks, thereby affecting the connecting rod and main bearing lubrication pressure.
- Check the main bearing seats that limit axial clearance in the crankshaft exhibit no wear. For the
dimensional check, refer to the instructions about checking the axial clearance and the dimensions on
the crankshaft
Beverly 500 i.e.
Engine
ENG - 145
Содержание Beverly 500 i.e.
Страница 1: ...WORKSHOP MANUAL 633387 Beverly 500 i e...
Страница 5: ...INDEX OF TOPICS CHARACTERISTICS CHAR...
Страница 17: ...INDEX OF TOPICS MAINTENANCE MAIN...
Страница 32: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS...
Страница 51: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE...
Страница 54: ...INDEX OF TOPICS ENGINE ENG...
Страница 162: ...Countershaft fixing nut 25 29 Engine Beverly 500 i e ENG 162...
Страница 163: ...INDEX OF TOPICS INJECTION INJEC...
Страница 260: ...INDEX OF TOPICS SUSPENSIONS SUSP...
Страница 284: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS...
Страница 300: ...Handlebar pump 7 to 10 Oil pipe joint to the pump 20 25 Braking system Beverly 500 i e BRAK SYS 300...
Страница 301: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS...
Страница 310: ...INDEX OF TOPICS CHASSIS CHAS...
Страница 329: ...INDEX OF TOPICS PRE DELIVERY PRE DE...
Страница 333: ...INDEX OF TOPICS TIME TIME...
Страница 382: ...Switch T Tank 11 324 359 360 Technical Data Transmission 8 55 71 345 Turn indicators Tyres 9 V Vehicle 7 52...