8
TK 2.49 & TK 3.74 Diesel Engine
Specifications
The TK 2.49 is a two cylinder engine. The TK 3.74 is a three cylinder engine. Unless it is otherwise noted, the specifications
for both of these engines are the same.
General TK 2.49 TK 3.74
Model 2TNE66KC 3TNE66KC
Type Four Stroke Cycle
Water Cooled
Four Stroke Cycle
Water Cooled
Number of Cylinders 2 3
Bore 2.60 in. (66.0 mm) 2.60 in. (66.0 mm)
Stroke 2.83 in. (72.0 mm) 2.83 in. (72.0 mm)
Displacement 30.1 cu. in. (493 cc) 45.1 cu. in. (739 cc)
Power Rating 9.1 hp (6.8 kW) 12.5 hp (9.3 kW)
Compression Ratio 23.1 to 1 23.1 to 1
Direction of Rotation Counterclockwise
(Viewed from Flywheel)
Counterclockwise
(Viewed from Flywheel)
Firing Order 1, 2 1, 3, 2
Fuel Injection Timing 14 Degrees BTDC 14 Degrees BTDC
Nozzle Injection Pressure 1707 psi (11768 kPa) 1707 psi (11768 kPa)
Oil Pressure 18.5 psi (127 kPa) Minimum
@ 230 F (110 C) & 1600 rpm
18.5 psi (127 kPa) Minimum
@ 230 F (110 C) & 1600 rpm
Valve Train Standard Dimensions Wear Limit
Valve Spring
Free Length 1.10 in. (28.0 mm) 0.99 in. (25.2 mm)
Inclination
Valve Guide Inside Diameter
Intake .2165-.2171 in. (5.500-5.515 mm) .2197 in. (5.580 mm)
Exhaust .2165-.2171 in. (5.500-5.515 mm) .2197 in. (5.580 mm)
Valve Stem Outside Diameter
Intake .2150-.2156 in. (5.460-5.475 mm) .2126 in. (5.400 mm)
Exhaust .2144-.2150 in. (5.445-5.460 mm) .2126 in. (5.400 mm)
Valve Depth
Intake .012-.020 in. (0.30-0.50 mm) .039 in. (1.00 mm)
Exhaust .030-.037 in. (0.75-0.95 mm) .039 in. (1.00 mm)
Valve Guide Projection
Intake .276 in. (7.00 mm)
Exhaust .276 in. (7.00 mm)
Valve Stem to Rocker Arm Clearance
Intake .006-.010 in. (0.15-0.25 mm)
Exhaust .006-.010 in. (0.15-0.25 mm)
Valve Seat Angle
Intake 30 Degrees
Exhaust 45 Degrees
To Next Page
Loading...