NC HT1.0 - Engine Body Specifications

15
Technical Specifications.
Item Factory Specification Allowable Limit
Valve Clearance (Cold)
0.145 to 0.185mm
0.00571 to 0.00728in.
-
Compression Pressure
Difference among Cylinders
D1105-E2B 539 to 596 psi
-
327 psi
10% or less
Top Clearance 0.55 to 0.70mm
0.0217 to 0.0276 in.
-
Cylinder Head Surface Flatness - 0.05mm
0.0020in.
Valve Recessing Intake and Exhaust -0.05 to 0.25mm
-0.0020 to 0.0098in
0.40mm
0.0157in.
Valve Stem to Valve Guide
Valve Stem
Valve Guide
Clearance
O.D.
I.D.
0.035 to 0.065mm
0.0014 to 0.0025in.
6.960 to 6.975mm
0.2741 to 0.2746in.
7.010 to 7.025mm
0.2760 to 0.2765in.
0.10mm
0.0039in.
-
-
Valve Face Angle (Intake)
Angle (Exhaust)
1.047 rad
60°
0.785 rad
45°
-
-
Valve Seat Angle (Intake)
Angle (Exhaust)
Width
1.047 rad
60°
0.785 rad
45°
2.12mm
0.0835in.
-
-
Valve Spring Free Length
Tilt
Setting Load
37.0 to 37.5mm
1.457 to 1.476in.
-
117.4N / 31.0mm
11.97kgf / 31.0mm
26.4lbs / 1.22in.
36.5mm
1.437in.
1.0mm
0.039in.
100.0N / 31.0mm
10.2kgf / 31.0mm
22.5lbs / 1.22in.
Engine Body