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Doosan DB33A - Engine Reassembly Procedures

Doosan DB33A
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40
Crankshaft pin outside diameter
Use a micrometer to measure the crankshaft pin
outside diameter across points
¤ and ¤Łat the two
points ¤Øand ¤Œ.
¤Ł
¤Ł
¤
¤
¤Ø
¤Ø
¤Œ
¤Œ
Standard (mm)
63.932¡›63.944
(2.517~2.517 in)
Connecting rod bearing cap reassembly
Crankshaft pin and bearing clearance (mm)
(mm)
Inside diameter
-Apply engine oil to bearing surface.
-Measure the connecting rod inside diameter with an
inside dial indicator.
Crankshaft journal bearing
Tension
Fit the journal bearing into the journal bearing cap and
check the tension with the same method of connecting
rod cap bearing.
Connecting rod bolt torque (kgƒUm)
Bolt type
12¡ 0.25
(86.7
¡
1.81
lb¡⁄ft
)
A
A : Bolt head
11
B : or
TY
11T
TY
12T
Connecting rod bearing 64§j
nominal diameter (mm) (2.52 in)
Under size
0.25¡›0.50
Bearing specifications
(.010 ~.020 in)
Standard
0.03¡›0.07
(.001~.003 in)
Limit
0.10
(.004 in)
9.75¡ 0.25
(70.51
¡
1.81
lb¡⁄ft
)
B

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