Volvo Penta 230 250 251 AQ131 AQ151 AQ171 Workshop Service Repair Manual PDF Download

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 is a very comprehensive manual (DOWNLOAD in PDF format) for VOLVO PENTA 230 250 251 AQ131 AQ151 AQ171 ENGINE, Features detailed exploded views. This is the same manual that technicians use to fix your vehicles. Manual covers detailed and complete step-by-step written procedures with pictures and diagrams, fully printable-selected pages or whole manual, illustrated and more than 100 pages. So, you will not be disappointed. This is the manual for Repairs & servicing.