Westerbeke 20B TWO/30B THREE Manual de Serviço descarregar pdf (Página 19)

Specified Value/Standard

Repair

Limit

Rocker

Arm

Rocker arm

1.0.

0.472

(12 mm)

Rocker arm

to

shaft clearance

-0.008 (Service limit)

(-0.2 mm)

Cylinder

Block

Camshaft hole dia.

Front

1.654 Ball bearing hole

(42 mm)

NO.2 1.339

(34 mm)

No.3

(30B Three only) 1.299

(33 mm)

Rear 1.299

(33 mm)

Cylinder

Bore

Bore size 2.992

+0.008

(76 mm)

(+0.2

mm)

Oversize finish tolerance

o -

0.001

for

each oversize

(0

-0.03

mm)

Cylindricity Within

0.0004

(0.01

mm)

Gasket fitting/surface distortion Within

0.0020

0.004

(0.05 mm)

(0.1

mm)

Piston

Type

Solid type

Material

Aluminum alloy

0.0.

(skirt end)

2.992

(76 mm)

Clearance

to

cylinder

0.001

(Service limit)

(0.3 mm)

17

Westerbeke

Engines

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 98 99

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