Volvo MD5A Marine diesel engine WORKSHOP MANUAL. This workshop manual contains repair instructions for the MD5A marine diesel engine. The instructions concerning overhauling describe the most suitable working method to be used with the special tools listed under the heading “Special tools”. Both the engine designation and its serial number must be clearly stated in all correspondence concerning the engine and when ordering spare parts. We reserve the right to carry out design modifications and, for this reason, the contents of this manual cannot he regarded as binding. Technicians have long since tried to establish an internationally standardized system of measurements. In 1960 a decision was made to use a system called SI (Systéme International d’Unites). To a large extent, this system is based on earlier systems but the units have been made uniform so that no conversions are necessary.
The SI-system is now being applied within industry in Europe, This manual contains the new SIunits. The units used previously however, are also stated but in brackets. Drain the cooling water and the oil from the engine. Clean externally afterwards. Loosen the water hose between the gearbox and the sea -water pump and remove the gearbox. 3. Remove the rocker cover and the fuel pipe between the pump and the injector and unscrew the rocker gear. Note! Pull the rocker gear straight up since it is centred with a guide pin 1. The other hole 2 is an oil channel.
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