Piston Pin Bushing Replacement; Oil Seal Replacement (Flywheel Housing Side) - Takeuchi TB 175 Handbuch

3)Apply the honing fluid to the Flex-Hone and turn the
electric drill at 300 to 1200 rpm. Then insert the Flex-
Hone into the cylinder bore while turning it, and move
it up and down for about 30 sec. to obtain a honing
mark with a cross hatch angle of 30 to 40°.
[NOTICE]
1)Avoid faster revolution than 1200 rpm since it may
cause breakdown.
2)Do not insert or extract the Flex-Hone in stopped state
because the cylinder will be damaged.
Boring and honing interval (H
Time for honing (H
Increase in L.O.C.
or blow-by

4.4.7 Piston pin bushing replacement

Replace bushing by using the special service tool (see 4.1.2 No.3 in Chapter 4).

4.4.8 Oil seal replacement (Flywheel housing side)

1)Replace oil seal, when a flywheel housing is removed. Extract the used oil seal.
2)Insert a new oil seal with the oil seal insertion tool.
3)Apply lithium grease.
4. Disassembly, inspection and reassembly of engines
Service life of cylinder block (H
(H
)
2
(H =1.5H )
2 1
)
1
Increase in L.O.C.
or blow-by
Honing Boring
Study if an oversized piston or piston ring is usable
107
Honing cross hatch
)
3
=3H )
3 1
Increase in L.O.C.
or blow-by
Honing
30 40
Increase in L.O.C.
or blow-by