4 cylinders + 6 cylinders 4 cylinders + 6 cylinders - Steyr Motors

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ToC 04 EXHAUST SYSTEM SERVICE MANUAL MARINE ENGINES 04.01.02 Measurement of exhaust backpressure special tool No. VR00136/0 ill.1/pos.1 ill.1/pos.3 ill.1/pos.4 ill.1/pos.5 ill.1/pos.6 ill.1/pos.7 ill.1/pos.9 pressure gauge (0-1 bar) intermediate sealing ring pressure gauge connection pressure hose double union sealing ring screw-in adaptor 9 8 7 6 10 1 2 3 4 5 1 Disconnect plug for exhaust temperature switch (ill.2/ pos.5). 01.02 ill.1 2 Dismantle high-riser temperature sensor, connect plug to sensor again, and fix it temporary on the engine. 3 Mount double union (ill.1/pos.6) with sealing ring (ill.1/pos.7) instead of hi-riser temperature sensor. 9 7 6 1 3 4 4 For 6 cyl. engines only (with FORD ECU) Screw in double union (ill.1/6) with sealing ring (ill.1/ 7) into screw-in adaptor (ill.1/9) and mount screw-in adaptor instead of hi-riser temperature sensor. 5 Mount seal ring (ill.1/pos.3) with pressure gauge connection (ill.1/pos.4) onto pressure gauge (ill.1/ pos.1) Connect pressure gauge to one end of pressure hose (ill.1/pos.5). 6 Connect the other end of pressure hose (ill.1/pos.5) to double union (ill.1/pos.6). 01.02 ill.2 5 MEASUREMENT: Drive the boat under operating conditions (rated output at rated speed) and read off pressure on pressure gauge. RESULT: With an exhaust pressure below 100 mbar at rated output of engine, the exhaust system is dimentional correctly and represents the ideal status. (up to max. 200 mbar acceptable) With an exhaust pressure exceeding 200 mbar at rated output of engine, tuning of exhaust system is no more ideal. To avoid losses in efficiency, changes in the exhaust system should be made (pipe diameter, pipe lengths, muffler etc.) An exhaust pressure of 300 mbar at rated output of engine is no more acceptable. ATTENTION: Changes in the exhaust system (pipe diameter, pipe lengths, muffler etc.) absolutely required. Considerable influence on output, fuel consumption and life of engine. 7 Assembly is done in reverse order: Page EXHAUST SYSTEM - 4 Z001019/0_6_July 2008
ToC SERVICE MANUAL MARINE ENGINES 05 COOLING SYSTEM 05 COOLING SYSTEM Table of Contents Page 05.00 Functional description cooling circuit ............................................... 2 05.00.01 Raw water circuit (external cooling circuit) ............................................. 2 05.00.02 Closed coolant from cooling circuit (internal engine cooling circuit) ....... 4 05.00.03 Error detection cooling system ............................................................... 6 05.00.04 Check points for problems in cooling system ......................................... 9 05.00.05 Component check raw water system ................................................... 10 05.00.06 Component check engine cooling system................................................ 11 05.00.07 Drain the coolant system........................................................................ 13 05.00.08 Fill the cooling system ............................................................................. 15 05.01 Cooler, heat exchanger, expansion tank ............................................ 16 05.01.01 Coolant tank ........................................................................................... 16 05.01.02 Disassembly exhaust manifold - heat exchanger .................................. 17 05.01.03 Checks ................................................................................................... 21 05.01.04 Exchange heat exchanger element........................................................ 23 05.01.05 Assembly of exhaust manifold ............................................................... 24 05.01.06 Exchange tandem cooler ........................................................................ 26 05.01.07 Exchange additional oil cooler (only type 246) ........................................ 26 05.01.08 Exchange triple cooler............................................................................. 27 05.03 Pipes, thermostat ................................................................................. 27 05.03.01 Coolant pipes and hoses ....................................................................... 27 05.03.02 Exchange thermostat ............................................................................. 28 05.03.03 Exchange sacrificial anodes................................................................... 30 05.04 Coolant pump ........................................................................................ 31 05.04.01 Exchange coolant pump ........................................................................ 31 05.04.02 Install coolant pump ................................................................................ 32 05.06 Poly-V-Belt ............................................................................................. 33 05.06.01 Exchange Poly-V-belt .............................................................................. 33 05.07 V-belt ...................................................................................................... 34 05.07.01 Exchange V-belts .................................................................................... 34 05.07.02 Adjust V-belts .......................................................................................... 36 05.10 Raw water pump ................................................................................... 37 05.10.01 Exchange raw water pump...................................................................... 37 05.12 Checks .................................................................................................. 38 05.12.01 Check closed engine cooling system for air ............................................ 38 Z001019/0_6_July 2008 Page COOLING SYSTEM - 1
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STEYR MARINE ENGINES 4 CYLINDERS +
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PREFACE STEYR MOTORS GmbH has devel
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TABLE OF CONTENTS (MAIN ASSEMBLY GR
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05 Cooling system 05.01 Cooler, hea
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°C °F 250 80 40 100 120 0 L MAIN
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4 cylinders + 6 cylinders 4 cylinders + 6 cylinders - Steyr Motors

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