Yanmar MP series Service Manual page 61

FUEL INJECTION PUMP
IMPORTANT
Do not use magnetized tools, as this may
cause fuel pump components to become
magnetized and attract metal debris.
5. Remove the distribution shaft (Figure 5-26).
7. Note the position of the coolant fitting
(Figure 5-28, (3)) and remove the coolant plug
(Figure 5-28,
(I)), gasket (Figure 5-28, (2))
and fitting. Remove the thermo-element
assembly (Figure 5-28, (4)), which includes the
timer piston (Figure 5-28, (5)), timer piston
return spring (Figure 5-28, (6)) timer housing
(Figure 5-28, (7)), gaskets (Figure 5-28, (8))
and seal (Figure 5-28, (9)).
0001 185
Figure 5-26
Note: Store parts in clean oil to prevent
oxidation.
6. Remove the plunger and barrel plug
(Figure 5-27, (I)), O-ring (Figure 5-27, (2))
and copper seal (Figure 5-27, (3)).
Figure 5-27
YANMAR,
MP series service Manual
0003551
Figure 5-28