Weifang 495 - Mounting Timing Gears; Crankshaft - Connecting Rod Mechanism and Its Maintenance

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(6)Mounting

Timing

Gears

During

mounting

the

timing.

gears,

it

IS

important

that

the

marks

on

each

pair

of

the

meshing

~ears

should

~e

aligned

with

one

another

to

ensure

the

correct

valve

timing

and

injection

tim-

Ing.

•

5

----

.

~--.

......

......

_.

-

~.:-'-

---+-

I

Fig.

9

Layout

of

the

gear

train

I-Injection

PUf11p

gear

(Z=40)

;2-Idling

gear

(Z=41)

;3-·-Camshaft

timing

gear

<Z=40);4-Crankshaft

timing

gear

(Z=20);5-Lubricatir:Lg

oil

pump

interme-

diate

gear

(Z=

25);

6--Lubricating

oil

pump

gear

(2=

17)

3~

Crankshaft

-Connecting

Rod

Mechanism

and

Its

Main~enance

1

)Construction

and

Features

The

crankshaft

a11d

connecting

rod

mechanism

consists'

of

the

piston

connecting

rod

assembly

(Fig-

10)

and

the

crankshaft

fly-

wheel

assembly

(Fig.

11)

31

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