VOLVO PENTA 230 250 251 AQ131 AQ151 AQ171 ENGINE WORKSHOP SERVICE MANUAL




ENGINE COVERED:
4-CYLINDER 4-STROKE OVRHEAD CAM ENGINE


PLEASE NOTE THIS MANUAL IS FOR ABOVE MENTIONED VOLVO PENTA ENGINE ONLY.


CONTENTS:
SAFETY PRECAUTIONS
GENERAL INFORMATION
REPAIR INSTRUCTIONS
PRESENTATION
TROUBLE-SHOOTING SCHEME
OVERHAUL DATA
SPECIAL TOOLS
ELECTRICAL SYSTEM
WIRING DIAGRAM AQ131, AQ151, 230, 250 ALT. 1
WIRING DIAGRAM 230, 250 ALT. 2
WIRING DIAGRAM AQ171, 251DOHC ALT.1
WIRING DIAGRAM 251DOHC ALT. 2
FUEL SYSTEM
TROUBLE SHOOTING AND REMEDIES FUEL SYSTEM
OVERHAULING AND CHECKING THE CARBURETOR
TROUBLE-SHOOTING AND REPAIR IGNITION SYSTEM 251DOHC, AQ171 38
CYLINDER HEAD
REMOVAL OF TEH EXTERNAL COMPONENTS
COOLING SYSTEM
OVERHAULING THE HEAT EXCHANGER
OVERHAULING THE SEA WATER PUMP
CHECK THE THERMOSTAT
OVERHAULING THE VALVE SYSTEM
OVERHAULING THE VALVE SYSTEM 230, 250, AQ131, AQ151
ADJUSTING THE VALVES 230, 250, AQ131, AQ151
VALVE SYSTEM 251DOHC, AQ171. TECHNICAL DESCRIPTION
OVERHAULING THE VALVE SYSTEM 251DOHC, AQ171
INSTALLING THE TOOTHED BELT
INSTALLING THE TOOTHED BELT 230, 250, AQ131, AQ151
INSTALLING THE TOOTHED BELT 251DOHC, AQ171
INSTALLING THE EXTERNAL COMPONENTS OF THE CYLINDER HEAD
CYLINDER BLOCK
REMOVING THE EXTERNAL COMPONENTS
OVERHAULING THE CRANK ASSEMBLY
THE LUBRICATING OIL PUMP OVERHAULING
INSTALLING THE EXTERNAL COMPONENTS
OVERHAULING THE OIL COOLER 250, 251DOHC, AQ151, AQ171


THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:
# ALL WINDOWS VERSION
# ALL MAC VERSION

# YOU NEED THE ADOBE ACROBAT READER TO VIEW THE DOCUMENT AS THE MANUAL IS PDF FORMAT. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM ADOBE ACROBAT WEBSITE

# AS THIS MANUAL IS COMING TO YOU IN ZIP FORMAT, YOU NEED TO EXTRACT THE FILE BEFORE USE BY USING WINZIP OR WINRAR SOFTWARE. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM WINZIP WEBSITE


A full comprehensive Electronic Workshop Manual . This is Recommend for professional mechanics and even for non-experienced people who wants to save money by making the repairs themselves. This is the same type of service manual your local dealer as well as the technician use when doing a repair & servicing for your vehicle.


Reason to buy this manual:

Save forever to your hard disc because a disc become faulty anytime
No need to waste time by waiting for postal delivery
Readable by any Devices with PDF Reader
Ready to Print
High Definition diagrams
Well structured contents
Very detailed instructions
Bookmarks for every chapter
No need to install any extra software