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MFS 30
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Tohatsu MFS 30 — информация о цилиндрах и подшипниках для двигателей 25/30 [168/319]

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Tohatsu MFS 30 [168/319] Thickness of bearing color of inner diameter code

5-52

Power Unit

25/30 2006

35)

Inner Diameter of Cylinder/Crank Case

Bearing Holder (Inner Diameter Code)

Cylinder is marked on its upper section with inner diameter

code 1 that indicates inner diameter of each bearing holder.

There are two types of bearing in accordance with inner

diameter code.

Remarks : When cylinder/crank case is purchased as a part,

fitting bearing comes with it.

36) Thickness of Bearing (Color of Inner

Diameter Code)

Bearing is painted with color 1 that represents thickness.

There are two types of bearing in accordance with coloring.

Inner Diameter Code 1

Standard Value Bearing Coloring

39.000 to 39.008 mm

Blue

(1.53543 to 1.53575 in)

39.008 to 39.016mm

Red

(1.53575 to 1.53606 in)

[Coloring (Inner Diameter Code)]

Thickness

Blue : A

1.488 to 1.494 mm

(0.05858 to 0.05882 in)

Red : B

1.494 to 1.500 mm

(0.05882 to 0.05906 in)

Inner diameter codes A and B represents size of

each bearing section.

Crankshaft Main Journal Oil Clearance :

0.012 to 0.044 mm ( 0.00047 to 0.00173 in )

Functional Limit :

0.060 mm ( 0.00236 in )

8. Loosen bolts in reverse order in several steps. Remove

crank case and measure width of crushed plasti-gauge on

each main journal. Replace bearing if the width is over

specified value.

mm in

If the clearance is less than specified value,

check that inner diameter code is as shown

below.

1 Inner Diameter Code

AAAA

IIIIII IV

MFS25_30_ch05.qxd 06.3.9 4:49 PM ページ 52

Tohatsu MFS 30 — информация о цилиндрах и подшипниках для двигателей 25/30 [168/319]

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