Introduction - Volvo Penta TAMD63L Instruction Book

Introduction

TAMD63L, -P, TAMD71B, TAMD73P, -WJ,
TAMD74C, -L, -P
The engines are four-stroke, 6 cylinder in-line marine
diesel engines with direct injection. They are
equipped with turbochargers, charge air coolers
(CACs) and heat exchangers for thermostat-control-
led freshwater cooling.
The charge air cooler (CAC), which is seawater-
cooled, lowers the temperature of the inlet air to the
engine after compression in the turbocharger. This
permits a high power output while keeping the com-
bustion and exhaust gas temperatures to appropriate
levels.
TAMD71B: To reduce exhaust emissions when oper-
ating at low load, e.g. after (cold-) starting, there is a
by-pass valve which closes the air passage through
the charge air cooler (CAC) and instead channels the
air directly into the engine's inlet manifold via the
electrical preheating element.
Location of type plates
Type plate (decal):
Engine design.
Serial number
Product No.
Decal,
dataset EDC:
8
TAMD74P-A
TD MG 5075A-E
XXXXXXXXXX
XXXXXXXXXX
868 821 3 828 492
TAMD74P-A
RATED POWER: 353 kW
RATED SPEED: 2600 RPM
DATASET: 873 931
SPEC. NO: 868 821
ECU BATCH: 9810
This equipment is not necessary in the TAMD63,
TAMD73 and TAMD74 as they have a different spec-
ification, for example, higher compression, a different
combustion chamber, and a modified injection sys-
tem.
The TAMD73P ("TAMD73 EDC") and TAMD74C/L/P
("TAMD74 EDC") are equipped with an electronically
controlled governor, Electronic Diesel Control
("EDC").* This further reduces exhaust emissions.
The exhaust manifold and turbocharger are fresh-
water-cooled to reduce the radiant heat to the engine
compartment.
For a more detailed description of the engine, its fuel,
lubrication, and cooling systems, etc., see "Techni-
cal descriptions" on pages 43– 70.
* Note. EDC = "Electronic Diesel Control".
Reverse gear design.
Serial number
Product No.
Type plate:
Certification plate: (TAMD63,
Type plate,
reverse gear
Engine designation Product No.
TAMD74P-A 868821
o
N . xxxxxxxxxx / xxxxx
Serial number Basic engine No.
TAMD73):
EMISSION APPROVED IN ACCORDANCE TO THE
REQUIREMENTS OF SAV.
xxxxxxxxxx
APPROVAL NO:
Approval No. (Certifying)