Inspecting the crankcase halves
- Before checking the crankcase halves, thorough-
ly clean all the surfaces and oil pipes.
- For the crankcase half on the transmission side,
take particular care cleaning the housing and oil
pipes of the oil pump, the duct and the by-pass
valve, the main bushings and the cooling nozzle
on the transmission side (see figure).
As already described in the lubrication chapter, it
is especially important that the by-pass valve
housing shows no wear that may impair the proper
sealing of the lubrication pressure adjustment pis-
ton.
- For 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.
- Check the coupling surfaces for scratches or de-
formation, paying special attention to the cylinder
- crankcase surfaces and the crankcase halves
coupling surfaces.
- Defects in the crankcase coupling gasket or the
surfaces indicated in the figure can cause a drop
in oil pressure and thus affect the lubricating pres-
sure for the main bushings and the connecting rod.
- Check that the surfaces limiting the crankshaft
axial clearance show no signs of wear. To meas-
ure and check sizes follow the procedure descri-
bed previously for checking crankshaft axial
clearance and dimensions.
NOTE
THE JET IS FED THROUGH THE MAIN BUSHINGS. PROP-
ER OPERATION OF THIS COMPONENT IMPROVES PIS-
TON CROWN COOLING. CLOGGING HAS EFFECTS THAT
ARE DIFFICULT TO DETECT (PISTON TEMPERATURE IN-
CREASE). FAILURE OR LEAKAGE CAN CONSIDERABLY
CAUSE A DROP IN LUBRICATION PRESSURE FOR THE
MAIN BUSHINGS AND CONNECTING ROD.
NOTE
THE HEAD LUBRICATION CHANNEL IS PROVIDED WITH
A SHUTTER JET: THIS GIVES A "LOW PRESSURE" HEAD
LUBRICATION; THIS CHOICE HAS BEEN MADE TO RE-
Engine
ATLANTIC 300 i.e.
ENG - 140
Содержание ATLANTIC 300 -
Страница 1: ...SERVICE STATION MANUAL 895759 ATLANTIC 300 i e ...
Страница 4: ......
Страница 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Страница 33: ...INDEX OF TOPICS TOOLING TOOL ...
Страница 41: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Страница 58: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Страница 59: ...Components arrangement ATLANTIC 300 i e Electrical system ELE SYS 59 ...
Страница 88: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Страница 97: ...INDEX OF TOPICS ENGINE ENG ...
Страница 144: ...Lubrication Conceptual diagrams LUBRICATION CIRCUIT Engine ATLANTIC 300 i e ENG 144 ...
Страница 145: ...ATLANTIC 300 i e Engine ENG 145 ...
Страница 154: ...INDEX OF TOPICS INJECTION INJEC ...
Страница 177: ...Components location ATLANTIC 300 i e Injection INJEC 177 ...
Страница 184: ...Injection ATLANTIC 300 i e INJEC 184 ...
Страница 189: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Страница 218: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Страница 230: ...Braking system ATLANTIC 300 i e BRAK SYS 230 ...
Страница 231: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Страница 237: ...INDEX OF TOPICS CHASSIS CHAS ...
Страница 270: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...