3
TK 2.44 & TK 3.66 Diesel Engine
Specifications
The TK 2.44 is a two cylinder engine. The TK 3.66 is a three cylinder engine. Unless it is otherwise noted, the specifications
for both of these engines are the same.
General
TK 2.44
TK 3.66
Model
2TN66
3TN66
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
2.53 in. (64.2 mm)
2.53 in. (64.2 mm)
Displacement
26.8 cu. in. (439 cc)
40.2 cu. in. (658 cc)
Power Rating
8.2 hp (6.0 kW)
11.2 hp (8.2 kW)
Compression Ratio
23 to 1
23 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
.03 in. (0.8 mm)
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
.016 in. (0.40 mm)
.039 in. (1.00 mm)
Exhaust
.033 in. (0.85 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
.008 in. (0.20 mm)
Exhaust
.008 in. (0.20 mm)
Valve Seat Angle
Intake
30 Degrees
Exhaust
45 Degrees