Specifications - Universal M3-20A Operator's Manual

UNIVERSAL MARINE ENGINES SPECIFICATIONS
Four cycle, fresh-water cooled, vertical in-line marine diesel engines.
HORSEPOWER
CYlINOERS
BORE ANO STROKE
COMBUSTION CHAMBER
OISPLACEMENT (cubic inches)
COMPRESSION RATIO
FIRING ORDER
ENGINE OIL
VALVE CLEARANCE
ENGINE OIL CAPACITY
TRANSMISSION
TRANSMISSION FlUIO
ENGINE DRY WEIGHT (w/lrans)
FUEl
COOLANT CAPACITY
ENGINE COOLING
ROTATION
FUEl NOZZLE TYPE
FUEL INJECTION PUMP
STARTING MOTOR
STARTING AIO
ALTERNATOR - STANDARD
M3-20A M-25XPA M-35A
18 @3600 rpm 23 @3200 rpm 30 @3200rpm
3 3 4
2.60 x 2.45 in
2.95 x 2.76 in
2.95 x 2.76 in
(64 x 70 mm) (76 x 70 mm) (76 x 70 mm)
spherical type; three vortex combustion system
38.9 C.1. 57 C.I. 75.5 C.I.
23:1 21 :1 21 :1
1.2.3 1.2.3 1.3.4.2
SAE 30, lOW 30 or lOW 40 (Above CF or CG·4 Grade)
.0057 to .007"/0.14 to 0.18 mm
3.20ts/3L 4.3 Ots/4L
5 Ots/4.7L
HBW-50 HBW-50 HBW-l00
Dexron II or Dexron III
2351bs/l06kg 285 Ibs/129kg
335 Ibs/152kg
No.2 Diesel Oil cetane rating of 45 or higher
30ts/2.8L 5Ots/4.7L
5 Ots/4.7L
Freshwater-cooled block, thermostatically controlled with raw water exchanger and
centrifugal fresh water pump.
Clockwise when viewed from the front.
Bosch "throttle" type
Bosch Per-MD Type, mini-pump
12 volt 1.2 kw activated shiff w/Solenoid
Voltage: 10.5 -12.0 VDC/Current: 8.7 - 9.0 Amps/Resistance: t.O -1.2 Ohms
51 amp 12 volt with internal regulator. Reg. set volts 14.7v-maximum
MARINE POWER
.... UnlVGrsal
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