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103047_SHB_Rev2.1_080611

MPE 750 Turbo Marine
Open Loop

1

Service Manual

Page 26

If you cannot correct a malfunction yourself using the table below, contact your vehicle 
dealer‘s customer service.

In case of improperly-made repairs, the warranty is voided and Weber Automotive GmbH 
is not liable for any resulting subsequent damage.

5 Malfunctions

Engine does not crank

Possible cause

Remedy

Main power switch not plugged in.

Plug in main power switch.

Battery voltage too low.

-  Open-circuit voltage < 12 volts.

-  During activation of the starter  

< 10.5 volts.

Remove soiling and corrosion on the battery 
poles and connect battery connections 
correctly.

With non maintenance-free batteries, check 
water level.

Charge battery with external battery charger

Engine mass point (1) not connected 
or not connected properly.

Check connection.

Defective fuse.

Check the fuses in the cable harness.

Drive or jet pump blocked.

Remove blockage.

Cable harness plug connections not 
plugged in or not plugged in correctly.

Check plug connections.

Summary of Contents for MPE 750 Turbo

Page 1: ...3047_SHB_Rev2 1_080611 MPE 750 Turbo Marine Open Loop MPE 750 Turbo Marine Open Loop 103047_MPE 750 Marine SO Open Loop 3 2 Service Manual This service manual is valid for the following engine variant...

Page 2: ...ci cations 4 3 2 Serial number 4 3 3 Operating materials 5 3 4 Running in the engine 6 3 5 Operating the engine without sea water 6 4 Maintenance 7 4 1 Maintenance work by the user of the vehicle 8 4...

Page 3: ...omething Instructions must be carried out in the sequence speci ed Deviations from the speci ed sequence can cause damage to the engine and accidents Instruction List Here you must do something Enumer...

Page 4: ...ined service personnel Arbitrary constructional changes to the engine are not permitted and void the warranty In addition to this documentation heed generally valid legal and other binding regulations...

Page 5: ...dle speed for a maximum of 30 seconds without sea water Engine damage due to overheating See Chapter Operating the engine without sea water Lift a submerged engine out of the water as quickly as possi...

Page 6: ...vibration compensation shaft Displacement 749 cm Engine power 81 kW 110 PS 109 HP SAE 1228 8000 U min RPM Max speed 8400 U min RPM Charging Turbocharger Combustion system Intake manifold fuel injectio...

Page 7: ...In case of emergency unleaded fuel with 91 ROZ RON or 82 5 MOZ MON may be used for a short time Lower quality fuels should only be used in case of emergency If used regularly they cause decreases in...

Page 8: ...ter Engine damage due to overheating ATTENTION Weber Automotive GmbH recommends that during the rst ve hours of operation you should not operate the engine over 6 000 U min RPM This protective running...

Page 9: ...activities on the engine described in this manual must be carried out by trained service personnel During the warranty period maintenance and repair work may only be carried out in Weber Motor service...

Page 10: ...sea water cooling circuit after driving Soiling in the sea water cooling circuit can cause severe damage to the exhaust manifold The ushing is done with a ush kit in the vehicle See the vehicle manuf...

Page 11: ...nd oil lter Change 13 2 2 Spark plugs Check clean 17 Change 17 3 Valve play Check set 20 3 3 Activities on the engine must be carried out by trained service personnel 1 h hours of operation 2 or at le...

Page 12: ...the maintenance work described in the maintenance interval table under end of the season various other service work is also required Conserve the cylinders Check spark plugs See Chapter Checking the...

Page 13: ...a standstill Measurements with cold oil are not meaningful The desired motor temperature is achieved after a driving time of approx 10 minutes at 4000 4500 U min RPM Measurement with a motor warm fro...

Page 14: ...Do not screw it in Then remove it again and read the oil level With a motor warm from operation the oil level must be just below the MAX marking The difference between MIN and MAX is approx 0 5 liter...

Page 15: ...oil feed hose with screw clamps Funnel tube for motor oil Motor oil see chapter Operating materials Oil lter see spare parts catalogue Draining the motor oil With a motor warm from operation the great...

Page 16: ...ed hose 7 Activate the engine s starter every 10 seconds in order to let the engine crank and wait 30 seconds 8 Repeat this procedure until the motor oil is pumped completely out The motor oil in the...

Page 17: ...70 65 C 3 10 Unscrew the oil lter cover 4 Tightening torque 24 Nm 10 17 7 ft lb Changing the oil lter 11 Replace the oil lter 5 and O ring 6 12 Coat the O ring 6 lightly with motor oil Assembly occurs...

Page 18: ...Fill oil tank with 2 5 liters of motor oil 14 Close the oil tank with the oil dipstick 15 Warm up the motor in a body of water for approx 10 minutes at 4000 4500 U min 16 Fill up the oil level with a...

Page 19: ...in Torque wrench 2x spark plugs see spare parts catalogue Removing the spark plugs Checking the spark plugs 1 Remove cable harness on the ignition coils 1 2 Loosen the cable harness on the cable hold...

Page 20: ...reverse order Please note instructions after this symbol 4 Remove the screws and washers 4 5 Remove the ignition coils 5 6 Unscrew the spark plugs 6 Install the spark plugs only in a cold engine Grea...

Page 21: ...B_Rev2 1_080611 MPE 750 Turbo Marine Open Loop 0 69 0 84 mm 0 0272 0 0331 in Service Manual Page 19 7 Check the electrode distance of the spark plugs with the help of the feeler gauge Checking the spa...

Page 22: ...urement tool for adjustment plate reading 0 01mm 0 0003 in Adjustment plates from 2 5 3 7 mm 0 0984 0 1457 in see spare parts catalogue Valve cover seals see spare parts catalogue 2x O rings see spare...

Page 23: ...cover 2 along with bracket and valve 3 Tightening torque 10 Nm 10 7 4 ft lb Replace the valve cover seals 4 Clean seal areas of the valve cover and cylinder head The sequence of the connection occurs...

Page 24: ...Permissible valve play Intake side 0 08 0 15 mm 0 0031 0 0059 in Exhaust side 0 18 0 25 mm 0 0071 0 0098 in 4 Start the vehicle s starter and let the engine crank until both cams of the second cylinde...

Page 25: ...3 7 Loosen the screws and washers 8 and remove the fuel distributor rail 9 6 To adjust the valve play on the intake side it is necessary to remove the fuel distributor rail Remove the cable harness on...

Page 26: ...lve adjustment tool 11 with two screws Tightening torque 10 Nm 10 7 4 ft lb Replace the O rings 9 on the injector valves Coat the O rings lightly with motor oil The engine may not be turned over until...

Page 27: ...rocker downwards with a 24 combination wrench 12 10 Clamp both valves by pressing in the sliding piece 13 11 Remove the adjustment plate with the bar magnet 12 Measure the strength of the adjustment p...

Page 28: ...tch not plugged in Plug in main power switch Battery voltage too low Open circuit voltage 12 volts During activation of the starter 10 5 volts Remove soiling and corrosion on the battery poles and con...

Page 29: ...es and if necessary have it checked by a professional shop Cable harness plug connections not plugged in or not plugged in correctly Check plug connections Spark plugs defective Check the spark plugs...

Page 30: ...ssional shop Cable harness plug connections not plugged in or not plugged in correctly Check plug connections Spark plugs defective Check the spark plugs and if necessary replace them See Chapter Spar...

Page 31: ...quality 5 M Maintenance intervals 9 Maintenance work by the user of the watercraft 8 Malfunctions 26 O Oil level check 11 Oil speci cation 5 Operating materials 5 Operating the engine without sea wate...

Page 32: ...family WEBM 750TG EU family designation 7WEBM 7507TG USA family designation adjusted to the model year annually 7 1 Directives Weber Automotive GmbH thus con rms that the construction of the engine co...

Page 33: ...nter USA CARB California Air Resources Board EPA United States Environmental Protection Agency All originals are present and can be viewed at any time They can be called up on the Internet at www webe...

Page 34: ...operation Company seal signature Date Work carried out Motor oil change Oil lter change Spark plug change Valve play checked Valve play adjusted Coolant change Status Hours of operation Company seal s...

Page 35: ...ge Oil lter change Spark plug change Valve play checked Valve play adjusted Coolant change Status Hours of operation Company seal signature Date Work carried out Motor oil change Oil lter change Spark...

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