service manual 55a four marine diesel engine - Westerbeke

INTRODUCTION
ENGINE OVERHAUL
This service manual contains detailed information relating to
the overhaul of the 55A FOUR Diesel Engine. For the major
overhaul procedure, refer to the ENGINE DISASSEMBLY,
ENGINE INSPECTION AND REPAIR, and ENGINE
REASSEMBLY sections. Additional service information for
specific components and systems may be found by referring
to the Table of Contents and the Index. Refer also to your
WESTERBEKE Parts Catalog.
These service procedures are intended for the guidance of
suitably equipped and staffed marine engine service and
rebuilding facilities, and should only be undertaken by suchfacilities
and their personnel.
PRODUCT SOFTWARE
Product software (tech data, parts lists, manuals, brochures
and catalogs) provided from sources other than WESTER­
BEKE are not within WESTERBEKE'S control.
WESTERBEKE CANNOT BE RESPONSIBLE FOR THE
CONTENT OF SUCH SOFTWARE, MAKES NO WAR­
RANTIES OR REPRESENTATIONS WITH RESPECT
THERETO, INCLUDING ACCURACY, TIMELINESS OR
COMPLETENESS THEREOF AND WILL IN NO EVENT
BE LIABLE FOR ANY TYPE OF DAMAGE OR INJURY
INCURRED IN CONNECTION WITH OR ARISING OUT
OF THE FURNISHING OR USE OF SUCH SOFTWARE.
WESTERBEKE customers should also keep in mind the
time span between printings of WESTERBEKE product software
and the unavoidable existence of earlier WESTER­
BEKE manuals. Product software provided with
WESTERBEKE products, whether from WESTERBEKE or
other suppliers, must not and cannot be relied upon exclusively
as the definitive authority on the respective product. It
not only makes good sense but is imperative that appropriate
representatives of WESTERBEKE or the supplier in question
be consulted to determine the accuracy and currentness of the
product software being consulted by the customer.
NOTES, CAUTIONS AND WARNINGS
As this manual takes you through the service procedures and
troubleshooting of your marine engine, critical information
will be highlighted by NOTES, CAUTIONS, and WARNINGS.
An explanation follows:
NOTE: An operating procedure essential to note.
A CAUTION: Procedures. which if not strictly
observed. can result in the damage or destruction of
your engine.
CUSTOMER IDENTIFICATION CARD
1-WV-IWESIE'RBEKE
I
Customer Identification
MR. ENGINE OWNER
MAIN STREET
HOMETOWN, USA
Model 55A FOUR
Expires 4/4/98
Ser. #UOOOO-D702
The WESTERBEKE engine serial number is an alphanumeric
number that can assist in determining the date of manufacture
of your WESTERBEKE engine. The manufacturer's
date code is placed at the end of the engine serial number and
consists of a character followed by three numbers. The character
indicates the decade (A=1960s, B=1970s, 0=1980s,
D=1990s), the first number represents the year in the decade,
and the second and third numbers represent the month of
manufacture.
ORDERING PARTS/SERIAL NUMBER LOCATION
Whenever replacement parts are needed, always provide the
engine model number and engine serial number as they
appear on the silver and black identification nameplate
located on the side of the manifold. The engine serial number
can also be found stamped into the engine block just above
the injection pump.You must provide us with this information
so we may properly identify your engine. In addition,
include a complete part description and part number for each
part needed (see the separately furnished Parts List). Also
insist upon WESTERBEKE packaged parts because will fit
or generic parts are frequently not made to the same specifications
as original equipment.
NOTE: Component locations in this manual are referenced
from the front of the engine which is the pulley/drive belt end.
Left and right sides are determined as follows: imagine
straddling the engine, facing in the same direction as the
front of the engine: the left side is at your left, the right side
is at your right.
Owners may find it convenient to fill in the engine identification
nameplate shown below to provide a quick reference
when using this service manual
A WARNING: Procedures, which if not properly followed.
can result in personal injury or loss of life.
Engines & Generators
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