Westerbeke M-25XPB User manual

PARTS

LIST

Univmrsal

MARINE

DIESEL

ENGINE

M-25XPB

M-356

M40B

PUBLICATION

NO.

201021

2ND

Edition

APRIL

2013

IMPORTANT

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Table of Contents

M-25XPB M-35B M-408 UNIVERSAL DIESEL ENGINES -13 SERIES

Model Model Type KW Fuel Frequency

M-25XPB Propulsion Diesel

M-35B Propulsion Diesel

M-40B Propulsion Diesel

Page

1

3

5

7

9

11

13

15

17

19

2 1

23

25

27

29

31

33

35

37

39

41

43

45

47

49

51

53

55

57

59

61

63

64

65

Description

CYLINDER BLOCK ASSEMBLY

-

M-25XPB

CYLINDER BLOCK ASSEMBLY

-

M-35B

/

M-40B

OIL PAN ASSEMBLY, OIL PRESSURE SWITCH

-

M-25XPB

OIL PAN ASSEMBLY, OIL PRESSURE SWITCH

-

M-35B

/

M-40B

CYLINDER HEAD ASSEMBLY

-

M-25XPB

CYLINDER HEAD ASSEMBLY -'M-359

/

M-40B

GEAR CASE ASSEMBLY

-

M-25XPB

/

M-35B

/

M-40B

PISTONS, CRANKSHAFT AND

MAlN BEARINGS

-

M-25XPB

PISTONS, CRANKSHAFT AND MAIN BEARINGS

-

M-358

/

M-40B

PISTONS, CRANKSHAFT AND MAlN BEARINGS

-

M-35131 M-40B

VALVE HEAD COVER AND AIR INTAKE MANIFOLD

-

M-25XPB

VALVE HEAD COVER AND AIR INTAKE MANIFOLD

-

M-3513

/

M-40B

EXHAUST MANIFOLD AND HEAT EXCHANGER

-

M-25XPB/ M-35B/ M-40B

FUEL FILTER, NOZZLE HOLDERS AND INJECTORS

-

M-25XPB

FUEL FILTER, NOZZLE HOLDERS AND INJECTORS

-

M-35B

/

M-40B

FUEL CAMSHAFT AND GOVERNOR SHAFT

-

M-25XPB

FUEL CAMSHAFT AND GOVERNOR SHAFT

-

M-35B

/

M-40B

VALVES, ROCKER ARMS AND CAMSHAFTS

-

M-25XPB

VALVES, ROCKER ARMS AND. CAMSHAFTS

-

M-35B

/

M-405

THROTTLE AND GOVERNOR ASSEMBLIES

FUEL

LIFT PUMP, SOLENOID AND FUEL RETURN

FRESH WATER COOLING SYSTEM

RAW WATER PUMP

BELL HOUSING AND TRANSMISSION

MODEL HBW VERTICAL SHIFTING BRACKET

ALTERNATOR ASSEMBLY

ELECTRICAL SYSTEM

PROPULSION INSTRUMENT PANELS

NOTES

MISCELLANEOUS

NUMERICAL INDEX

CYLINDER

BLOCK ASSEMBLY

-

M-25XPB

\

CYLINDER BLOCK ASSEMBLY

-

M-25XPB

Reference

#

Part

#

GASKET

COVER

CAPSCREW

LOCKWASHER

PLUG

DOWEL

PLUG

NUT

WASHER

LOCKWASHER

CAPSCREW

MOUNT

CAPSCREW

ISOLATOR

PLUG

DOWEL

PLUG

BUSHING

GASKET

PLUG

DOWEL

PLUG

DOWEL

O-RING

DOWEL

NUT

CAPSCREW

PLUG

BLOCK

PUMP COVER

PUMP

M 8 X 20 DIN 933

M 8 DIN 127

EXPANSION

114 NPT HEX HEAD (BRASS)

JAM M 16, SELF-LOCKING

FLAT, 518 SAE (STEEL)

M 10 DIN 127

M

10X 1.25 X 20 DIN 961

FRONT

M 10 X1.25 X 20 DIN 7991

MARINE 75-130 LB.

EXPANSION

TUBULAR

GOVERNOR GEAR

START SPRING

TUBULAR

M 8 SELF-LOCKING

M8X32JIS7WlLW

EXPANSION

ASSEMBLY INCL. HEAD

-

M-25XPB

CYLINDER BLOCK ASSEMBLY

-

M-35B

I

M-40B

CYLINDER BLOCK ASSEMBLY

-

M-35

1

M-40

Reference

#

Part

#

Part

Name

GASKET

COVER

CAPSCREW

LOCKWASHER

PLUG

DOWEL

PLUG

NUT

WASHER

LOCKWASHER

CAPSCREW

MOUNT

CAPSCREW

ISOLATOR

PLUG

DOWEL

PLUG

BUSHING

GASKET

PLUG

DOWEL

PLUG

DOWEL

O-RING

DOWEL

NUT

CAPSCREW

PLUG

BLOCK

Remarks Quantity

PUMP COVER

PUMP

M 8 X 20 DIN 933

M 8 DIN 127

EXPANSION

114 NPT HEX HEAD (BRASS)

JAM M 16, SELF-LOCKING

FLAT, 518 SAE (STEEL)

M 10 DIN 127

M

lOX1.25X20DIN961

FRONT

M 10 X 1.25

X20 DIN 7991

MARINE 75-130 LB.

EXPANSION

TUBULAR

GOVERNOR GEAR

START SPRING

TUBULAR

M 8 SELF-LOCKING

M 8X 32 JIS

7

WILW

EXPANSION

ASSEMBLY INCL. HEAD

-

M-35B

ASSEMBLY INCL .HEAD M-40B

OIL PAN ASSEMBLY, OIL PRESSURE SWITCH

-

M-25XPB

OIL PAN ASSEMBLY, OIL PRESSURE SWITCH

-

M-2SXPB

Referen-

#

Part

#

Part

Name Remarks

Quantity

DIPSTICK

SEAL

BOLT

WASHER

HOSE

WASHER

CAPSCREW

ADAPTER

HOSE

ELBOW

BRACKET

WASHER

LOCKWASHER

CAPSCREW

PLUG

ELBOW

SWITCH

ELBOW

SUMP

GASKET

PLUG

STRAINER

CAPSCREW

LOCKWASHER

O-RING

CAPSCREW

WASHER

BRACKET

CAP

ELBOW

LEAD

WIRE

BANJOSUMP M 12 X 1.25

SUMP DRAIN

24

INCH

M6X 12 JIS6WlLW

118 BSPT TO 118 NPT

OIL

118NPT TO 45 DEG STREET (STEEL)

OIL PRESSURE SENDER

M

10 DIN 125

M

10 DIN 127

M

10X 1.25X 20 DIN 961

HEX

HEAD, 118 NPT (BRASS)

118NPT TO 45 DEG STREET (STEEL)

OIL PRESSURE, NO. 5

118 NPT 90 DEG STREET (BRASS)

OIL

DRAIN PLUG

DRAIN

OIL PICK-UP

M8X16DIN933

M8DIN 127

M

6

X 45 J1S6 WILW

M

10

X 25 DIN 933

-

V-DRIVE OPTION

FLAT, 114" SAE (STEEL)

SUMP DRAIN HOSE

114 NPT (BRASS)

118 NPT 90 DEG STREET (BRASS)

Note:

Use a good quality

RN Sealant for oil pan to block gasket.

OIL

PAN

ASSEMBLY,

OIL

PRESSURE

SWITCH

-

M-35B

I

M-40B

OIL

PAN

ASSEMBLY,

OIL

PRESSURE

SWITCH

-

M-35B

M-40B

Reference

#

Part

#

Part Name Remarks

Quantity

DIPSTICK

SEAL

BOLT

WASHER

HOSE

WASHER

CAPSCREW

ADAPTER

HOSE

ELBOW

BRACKET

WASHER

LOCKWASHER

CAPSCREW

PLUG

ELBOW

SWITCH

ELBOW

SUMP

GASKET

PLUG

STRAINER

CAPSCREW

LOCKWASHER

O-RING

CAPSCREW

WASHER

BRACKET

CAP

ELBOW

LEAD

WIRE

BANJO-SUMP M 12 X 1.25

1

.OO

OD

X

0.708 ID

SUMP DRAIN 24 INCH

1

.OO

OD X 0.473 ID

M6X 12

JlS6WILW

118 BSPT TO I18 NPT

OIL

118NPT TO 45 DEG STREET (STEEL)

OIL PRESSURE SENDER

M

10 DIN 125

M 10 DIN 127

M

10X 1.25X20 DIN 961

HEX HEAD, 118 NPT (BRASS)

118NPT TO 45 DEO STREET (STEEL)

OIL PRESSURE, NO.

5

118 NPT

90

DEG STREET (BRASS)

OIL

SUMP

DRAIN

OIL PICK-UP

M8X16DIN933

M8 DIN 127

M6X45JIS6WlLW

M

10 X 25 DIN 933

-

V-DRIVE OPTION

FLAT, 114" SAE (STEEL)

SUMP DRAIN HOSE

114 NPT (BRASS)

118 NPT 90 DEG STREET (BRASS)

Note:

Use a good quality

RN Sealant

for

oil pan to block gasket.

CYLINDER HEAD ASSEMBLY

-

M-25XPB

CYLINDER HEAD ASSEMBLY

-

M-25XPB

-

Reference

#

Part

#

Part Name Remarks Quantity

CAPSCREW

LOCKWASHER

EYE

HEAD

BOLT

GUIDE

PLUG

EYE

PLUG

GASKET

PLUG

O-RING

M

8X

16

DIN

933

M

8 DIN 127

LIFTING

CYLINDER

CYLINDER HEAD

INTAKE VALVE

EXHAUST VALVE

EXPANSION

LIFTING

EXPANSION 30MM DIN

443

BRASS

CYLINDER HEAD

CYLINDER HEAD ASSEMBLY

-

M-35B

I

M-40B

CYLINDER HEAD ASSEMBLY

M-35B

M-40B

Reference

#

Part

#

Part

Name

Remarks Quantity

CAPSCREW

LOCKWASHER

EYE

HEAD

BOLT

GUIDE

PLUG

EYE

GASKET

PLUG

O-RING

M

8

X

16

DIN 933 WILW

M8 DIN 127

LIFTING

CYLINDER

-

M-35B,

pre

date code

E412

CYLINDER

-

M-35B,

post

date code

E501

CYLINDER

-

M-40B

CYLINDER HEAD

INTAKE VALVE

EXHAUST VALVE

EXPANSION

EXPANSION 30MM DIN 443 BRASS

LIFTING

CYLINDER HEAD

-

M-35B

CYLINDER HEAD

-

M-40B

GEAR CASE ASSEMBLY

-

M-25XPB

/

M-35B

/

M-40B

Reference

#

Part

#

Part Name

ASSEMBLY

GASKET

PUMP

COVER

SCREW

O-RING

SPRING

BALL

CAP

FILTER

ADAPTER

WASHER

PLUG

CAPSCREW

LOCKWASHER

CAPSCREW

LOCKWASHER

BOLT

SEAL

BOLT

CAPSCREW

NUT

LOCKWASHER

STUD

GASKET

COVER

LOCKWASHER

NUT

FILTER KIT

O-RING

ADAPTER

CONNECTOR

HOSE

BRACKET

CAPSCREW

LOCKWASHER

ADAPTER

NIPPLE

FILTER

PLUG

Remarks

GEAR CASE, pre date code E412

GEAR CASE, post date code E501

GEAR CASE

OIL

OIL PUMP, pre date code E412

OIL PUMP, post Date code E501

COVER LOCATING, post Date code E501

OIL PUMP COVER

M-25XPB

M-35B

I

M-40B

M-25XPB

M-35B

I

M-40B

OIL RELIEF VALVE

OIL

OIL FILTER

FLAT

M

18

M 6 X 55 DIN 931

M6 DIN 127

M6X50DIN931

M

6

DIN

127

TlMlNG CASE

OIL

TlMlNG CASE

M6X45JlS6WILW

M6DIN 934

M6 DIN 127

TIMING CASE

-

M-25XPB

TlMlNG CASE

-

M-356

1

M-40B

TlMlNG CASE

-

M-25XPB

TIMING CASE- M-358 1 M408

FUEL PUMP

M 6 DIN 127

M6 DIN 934

REMOTE LUBE OIL

-

(inc. ref. 30-39)

REMOTE OIL FILTER

HOSE

OIL 40-114 LG

REMOTE OIL FILTER

114 NC

x

314

SPLIT 114 MED (STEEL)

REMOTE OIL FILTER

OIL FILTER TO ADAPTER

LUBE OIL

M35B post E501 date code

Quantity

PISTONS, CRANKSHAFT AND MAIN BEARINGS

-

M-25XPB

PISTONS, CRANKSHAFT AND MAlN BEARINGS

-

M-25XPB

Reference

#

Part

#

Part Name Remarks Quantity

RlNG SET

RlNG

PISTON

ROD

BUSHING

BEARING SET

BOLT

BEARING SET

THRUSTWASHER

BEARING SET

THRUSTWASHER

BALL

BUSHING

CRANKSHAFT

KEY

BEARING SET

GEAR

O-RING

COLLAR

BOLT

CASE

BOLT

SEAL

CAPSCREW

LOCKWASHER

CAPSCREW

LOCKWASHER

COVER

GASKET

BOLT

CASE

STD

0.5 MM

RETAINING

PISTON

STD

0.5 MM

CONNECTING ASSEMBLY

CONNECTING ROD

CONNECTING ROD, STD

CONNECTING ROD,

0.2MM

CONNECTING ROD, 0.4MM

CONNECTING ROD

MAlN STD

MAlN

0.2MM

MAlN 0.4MM

STD

0.2MM

0.4MM

MAlN STD

MAlN

0.2MM

MAlN 0.4MM

STD

0.2MM

0.4MM

1

14

CRANKSHAFT

ASSEMBLY

-

INC. REF 13,14,

WOODRUFF

MAlN STD

MAlN

0.2MM

MAlN 0.4MM

CRANKSHAFT

OIL PUMP

CRANKSHAFT

BEARING CASE

ASSEMBLY, MAlN BEARING

BEARING CASE

OIL

M6X20DIN 933

M 6 DIN 127

M 6

X

25 DIN 933

M 6 DIN 127

BEARING CASE

BEARING COVER

BEARING CASE

ASSEMBLY, MAlN BEARING

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