Piston And Connecting Rod Assembly - Yanmar YSE8 Service Manual

wear on valve
guides and
valves.
Rene\! cylinder head or
valye if worn.
YSE8
YSEl2
Intake
104211
- 1 1 1 0 0
1 0 4 5 1 1
- 1 1 1 0 0
Exhaust
valve
104211
- 1 1 1 1 0
104511
- 1 1 1 1 0
Cylindei
heacl
to42tL
- 1 1 0 1 0
104507
- 1 1 0 1 0
Reassembly
.
lnsert tll
intake and exhaust valves into the cylinder head, and secure each valve spring
Jnt+
, sr.op witli'isparner placcd upon lhc valvP spring holder'
Check and renew (if necessaiy) the gasket.
Cla.rnp the cylinder head evenly in the diagonal direction.
rC
I
2l
Cylinder head lock nut tightening torque
Y S E S
YSET2
Tightening torque 8 . 8
\ 2 . 4
Piston and Connecting Rod Assembly
ital at its smaller end and crankpin metal at its lalger end. The piston rings are com-
posed of three pressure rings and one oil ring.
Piston and Coinecting Rod Assembly
As Disassembled
Connecting rod lock nut tightening
torque.
r*8ton of hidr silicon featuring a low expansion coeflicient and outstanding resistance
jaw road ii ouar shaped externally.
The starnp forged connecting rod has piston pin
ra
Connect nq ro.l ass--mb y
kc-or
YSE 8
YSE 12
Iightening torque 3
26