NC HT1.0 - Engine Body Specifications (Continued)

16
Technical Specifications.
Item Factory Specification Allowable Limit
Rocker Arm Shaft to Rocker Arm
Rocker Arm Shaft
Rocker Arm
Clearance
O.D.
I.D.
0.016 to 0.045mm
0.00063 to 0.00177in.
11.973 to 11.984mm
0.4714 to 0.4718in.
12.000 to 12.018mm
0.4724 to 0.4731in.
0.10mm
0.0039in.
-
-
Push Rod Alignment - 0.25mm
0.0098in.
Tappet to Tappet Guide
Tappet
Tappet Guide
Clearance
O.D.
I.D.
0.020 to 0.062mm
0.0008 to 0.0024in.
19.959 to 19.980mm
0.7858 to 0.7866in.
20.000 to 20.021mm
0.7874 to 0.7882in.
0.07mm
0.0028in.
-
-
Timing Gear
Crank Gear to Idle Gear 1
Idle Gear 1 to Cam Gear
Idle Gear 1 to Injector Pump Gear
Idle Gear 1 to Idle Gear 2
Idle Gear 2 to Governor Gear
Backlash
Backlash
Backlash
Backlash
Backlash
0.032 to 0.115mm
0.0013 to 0.0045in.
0.036 to 0.114mm
0.0014 to 0.0045in.
0.034 to 0.116mm
0.0013 to 0.0046in.
0.033 to 0.117mm
0.0013 to 0.0046in.
0.030 to 0.117mm
0.0012 to 0.0046in.
0.15mm
0.0059in.
0.15mm
0.0059in.
0.15mm
0.0059in.
0.15mm
0.0059in.
0.15mm
0.0059in.
Governor Gear
Governor Gear to Injection Pump
Gear
Backlash 0.030 to 0.117mm
0.0012 to 0.0046in.
0.15mm
0.0059in.
Engine Body (Continued)