Weber Automotive MPE 750 Turbo Marine User manual

MPE 750 Turbo Marine
Closed Loop
103666_EHB_Rev1.0_080215
MPE 750 Turbo Marine - Closed Loop
• 103666_I2 749 MAR TC-100 DS V4 2007 3.1
• 103730_I2 749 MAR TC-143 DS V1 2007 3.1
Installation Guide
This Installation Guide is valid for the following engine variants:

MPE 750 Turbo Marine
Closed Loop
103666_EHB_Rev1.0_080215
Installation Guide
Table of contents
1 Mechanical Installation 1
1.1 Engine lift 2
1.2 Enginexationanddecoupling 3
1.3 Power Take Off (PTO) 4
1.4 Throttle cable 5
2 Alignment engine to drive train 6
3 Fuel system 7
4 Cooling water 10
4.1 Supplyseawater 12
4.2 Flush system 13
4.3 Boat tow 14
5 Exhaustsystem 15
6 Electric 17
6.1 Engine monitoring 18
6.2 Schema engine wire harness 19
6.3 Schema boat harness 20
6.4 Required connectors for boat harness 21
7 First run and brake in of engine 22
8 Maintenance 24
9 Serial release 25
10 Specicationforfuel,oilandcoolant 26
11 Basic dimensions 27
12 Reference addresses 28
13 Appendix 29

103666_EBH_Rev1.0_080215
MPE 750 Turbo Marine
Closed Loop
Installation Guide
Page 1
1 Mechanical Installation
The following section describes the handling of the engine during installation and the assembly into the boat.
In general a clearance of 50 mm between engine and boat hull is required.
Vent openings of an area of 9000 m² is needed to give the engine enough air to operate.

103666_EBH_Rev1.0_080215
MPE 750 Turbo Marine
Closed Loop
Installation Guide
Page 2
1.1 Engine lift
The engine has two lift eyes (1) at the cylinder head. Only use these eyes to raise the engine.
1

103666_EBH_Rev1.0_080215
MPE 750 Turbo Marine
Closed Loop
Installation Guide
Page 3
1.2 Engine fixation and decoupling
The engine mounts are specific for marine applications, a decoupling to the boat is necessary. The picture
shows the placement and proposed engine bearings (1) of the marine engine.
1
2
3
Pos. Part No Description QTY
1 100527 engine mount D62 H30 M12 4
2 102535 engine bracket front 1
3 100119 engine bracket rear 1

103666_EBH_Rev1.0_080215
MPE 750 Turbo Marine
Closed Loop
Installation Guide
Page 4
1.3 Power Take Off (PTO)
The connection to the drive train is by a thread M24x2 on the PTO of the engine

103666_EBH_Rev1.0_080215
MPE 750 Turbo Marine
Closed Loop
Installation Guide
Page 5
1.4 Throttle cable
The engine has a mechanical throttle body which has to be activated by a marine throttle cable. The travel
of 70 mm is designed to meet the function throttle levers like the Teleflex JBS system.
The Teleflex JBS system is designated for jet boats and is available e.g. at Allpa Marine Equipment, part
number CH2300
maximum possible
position of bowden cable

103666_EBH_Rev1.0_080215
MPE 750 Turbo Marine
Closed Loop
Installation Guide
Page 6
2 Alignment Engine to Drive Train
The alignment of the engine to the drive train has to be in following limits
Radial alignment: max. 0.8 mm [ 0.03 inch ]
Angular alignment: max. 0.5°
To check and adjust the alignment between the engine and the Weber Automotive Jet Propulsion System a
Weber Automotive alignment tool was designed. This tool is using a laser to get the engine with drive system
set up properly. The use of this tool is described in the installation manual of the Weber Jet Propulsion
System.
To adjust the alingnment engine shims (1) are available at Weber Automotive
Part No Description Thickness
103708 engine shim 0,5 mm
103707 engine shim 1,0 mm
1

103666_EBH_Rev1.0_080215
MPE 750 Turbo Marine
Closed Loop
Installation Guide
Page 7
3 Fuel System
The fuel pump (1) has to deliver 120 liters per hour at a pressure of 4.5 bar. A possible
pump and filter configuration is shown in the following picture. To ensure a safe and
adequate fuel delivery a minimum inner diameter of 8 mm is required for fuel hoses and
fittings. This includes fittings on the gas tank including gas pick up in the tank.
Fuel filters (2) (3) have to be used to be avoid damages on the fuel pump and malfunction of the fuel
injectors:
Prefilter (3):
• 105 μm
• e.g. Pierburg 4.000.30.80.0
Mainfilter (2):
• 15 μm, filtergrade 95%
• e.g. Mann&Hummel WK512
3
1
from gastank
to engine
2
1) fuel pump
2) main filter
3) pre filter

103666_EBH_Rev1.0_080215
MPE 750 Turbo Marine
Closed Loop
Installation Guide
Page 8
The fuel rails fittings ars designed conform to
SAE J2044. The use of quick connectors (1) (2) is
strictly recommended.
(a) Fuel Feed Line from Fuel Pump: Fitting SAE
J2044 diameter 7,89 mm for quick connector
(b) Fuel Return Line to tank: Fitting SAE J2044
diameter 7,89 mm for quick connectors
3 Fuel System
Pos. Order No Description Specification Manufacturer
1 104227 quick connector 7,89x90° Weber
2 104228 quick connector 7,89x180° Weber
3 103450 fuel filter, pressure side Mann & Hummel WK512
4 103397 fuel filter, intake side Pierburg 4.000.30.80.0
ba
2
1
fuel tank
4
fuel pump
120liter/hour at 4.5bar
3
fuelrail