Yanmar 4LHA-HTP Operation Manual page 405

Chapter 3 Fuel Injection Equipment
9. Pump Reassembly, Adjustment and Inspection
Fig. 13
n
Fig. 14
Fig. 15
Block gauge
Part No. 157829-1100
0
11. Flyweight Assembly Clearance
Using a thickness gauge measure the clear-
ance between the flyweight holder end face
and the stopper pin (marked in Fig. 13.) Adjust
the clearance using the shim [(110) in Fig. 25]
at , the back
assembly.
Clearance:
With straight pin: 0 . 1 5
With stepped pin : 0 . 3 5
12. Starting Stroke "MS" Adjustment
" M S " is the distance from the closing plug
installed on the governor sleeve to the starting
lever, and
quantity for
measurement varies, depending on the type of
governor lever assembly, as shown below.
a) Standard type
Hold the corrector lever against the block
gauge (Part No. 157829-1100) installed as
shown in Fig. 15, and keep the tension
lever against the stopper pin press-fitted
into the pump housing.
Then, hold the starting lever against the
tension lever with the start spring com-
pressed.
Using a
dimension " M S "
3-1-48
_ 4LH Series
of the governor
mm
+ 0 2
mm
+ 0 2
determines the fuel
engine starting. Method
thickness gauge
flyweight
injection
of
measure