VOLVO PENTA 230 250 251 AQ131 AQ151 AQ171 WORKSHOP SERVICE MANUAL

VOLVO PENTA 230 250 251 AQ131 AQ151 AQ171 WORKSHOP SERVICE MANUAL
LANGUAGE: ENGLISH
FORMAT: PDF
PAGES: 102
FILE SIZE: 84.1MB

ENGINE COVERED:

4-CYLINDER 4-STROKE OVRHEAD CAM ENGINE
 

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