Technical data

Section 04 ENGINE

Sub-Section 02 (TOP END)

040-02-9

– Warm piston to approximately 50-60°C (122-

140°F) and install it over connecting rod.

– Insert extractor spindle into the piston pin,

screw on extracting nut.

– Rotate handle to pull piston pin carefully into

the piston.

PLACTIC MOUNTING DEVICE METHOD

As an alternate method when no service tool is

available proceed as follows :

Replacement roller bearings are delivered in a

convenient plastic mounting device. For installa-

tion, proceed as follows :

– Align replacement roller bearing with connect-

ing rod bore.

– Carefully push inner plastic sleeve into con-

necting rod bore ; outer plastic ring will release

rollers.

1. Outer ring removal after inner sleeve insertion into bore

– Make sure thrust washers are present each

side of rollers.

1. Thrust washer each side

– Insert piston pin into piston until it comes flush

with inward edge of piston hub.

1. Piston pin flush here

2. Thrust washers

– Place piston over connecting rod and align

bores, then gently tap piston pin with a fiber

hammer to push out inner plastic ring on oppo-

site side. Support piston from opposite side.

F01D31A

F01D0QA

F01D0VA

F01D0RA