P 16/ 19
Repair
[4]DISASSEMBLY/ASSEMBLY
DISASSEMBLING
Important: When Intake/ Exhaust valves have to be replaced, remove Cylinder head complete. (Refer to previous page.)
(5)Loosen eleven Hexalobular socket head bolts on the bottom of Crank case (Fig. 58), then remove Crank case from Cylinder block. As Liquid gasket makes Cylinder block stick on Crank case, insert and twist a slotted screwdriver between the clearance. (Fig. 59)
Scrape away Liquid gasket on the mating surface.
(6)Pull out the assembled part of Crank shaft and Piston from Cylinder block. (Fig. 60)
(7)Remove one of Ring spring 12 with a thin slotted screwdriver, then push Piston pin from the opposite with care so as not to damage the other Ring spring 12. (Fig. 61)
The following parts mentioned in Fig. 62 can be replaced individually. When the rest parts have to be replaced, Crankshaft complete is required.
Fig. 58 | Fig. 59 |
| Crank case viewed from the bottom side |
M5x16 |
|
Hexalobular |
|
socket head |
|
bolt (3 pcs.) |
|
Crank case viewed | M6x30 Hexalobular |
| |
from the bottom | socket head bolt (8 pcs.) | Slotted | |
side |
| screwdriver | |
Fig. 60 | Fig. 62 | ||
|
| Top ring | |
|
| Second ring | |
|
| Oil ring | |
| Cylinder block | Piston | |
|
| Piston pin | |
Fig. 61 |
| Ring spring 12 | |
Piston pin | Ring spring 12 | ||
| |||
Woodruff key 4
Oil seal 17 Piston
Insert a thin slotted screwdriver from the depression on the rib around Piston pin hole.
Slotted screwdriver
Cylinder block
Ring spring 12
Oil seal L
Flat washer 41
Crankshaft complete*
*The components cannot be supplied individually.
