Yanmar 6LY3 series Service Manual page 100

ENGINE
Checking Spring Retainer and Spring
Cotters
1. Inspect the inside face of the spring retainer.
2. Inspect the outside surface of the spring cotter.
3. Inspect the contact area of the spring cotter
inside surface and the notch in the head of the
valve stem.
4. Replace the spring retainer and spring cotters
when the contact area is less than 70%, or
when the spring cotters have worn excessively.
Inspecting the Injection Nozzle Sleeves
Lubricate the nozzle O-rings (Figure 5-32, (1)) with
clean engine oil. Insert the nozzle sleeve
(Figure 5-32, (2)) into the cylinder head and torque
to the value shown below.
Nozzle Sleeve Torque
57.8 ± 4.9 N·m
(5.89 ± 0.50 kgf·m)
(43 ± 3.6 lb-ft)
Part Name
Nozzle Sleeve
O-Ring (1AP22A)
Nozzle Sleeve Gasket
5-34
Inspecting the Cylinder Block and Components
Part No.
119578-11820
24311-350220
119578-11960
© 2007 Yanmar Marine International
Figure 5-32
(1)
(4)
Figure 5-32
1 – O-Ring
2 – Nozzle Sleeve
3 – M13
4 – Gasket
6LY3 Service Manual
(2)
(3)
0005613
(2)
0005614