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Workshop Manual KD 441_cod. 1.5302.865_2
nd
ed_ rev.
01.
74
5
77
76
75
A
B
C
R
R
1
C
Connecting rod alignement
Use a dial gauge as shown in the figure.
Check that axes are aligned using the piston pin; axial mis alignment
A
= 0.015; limit 0.03 mm.
If the difference is greater, the connecting rod is not aligned, and it
must be replaced with a new one.
Crankshaft, connection radius
Caution – Warning
When the crankpin and main journal are ground, values
R
and
R
1
must be obtained again to prevent the drive shaft from breaking.
Radius
R
that joins the crankpin to the supports is 3.3÷3.7 mm.
Radius
R
1
that joins the main journal to the timing gear is 1.5 mm.
Crankshaft, lubrication ducts, bore thread on flywheel side and
p.t.o.
Remove plugs
C
and check that the lubrication duct is perfectly clean.
Close with a new plug checking for proper sealing.
A
= M14x1.5 (turn counterclockwise)
B
= M8x1.25
Crankshaft, journal/crankpin diameter check, timing cover bea-
ring internal diameters and crankshaft and big end bearing sup-
port
Use an outside micrometer for the journal and an inside dial gauge for
the timing cover, crankshaft and big end bearings.
Overhauls and checking
Summary of Contents for RD 441
Page 1: ...15 LD 441 KD 441 SERVICE MANUAL cod 1 5302 865 _ 2nd ed _rev 01 HORIZONTAL CRANKSHAFT...
Page 2: ......
Page 31: ...31 Workshop Manual KD 441_cod 1 5302 865_2nd ed_ rev 01 Notes...
Page 47: ...47 Workshop Manual KD 441_cod 1 5302 865_2nd ed_ rev 01 Notes...
Page 61: ...61 Workshop Manual KD 441_cod 1 5302 865_2nd ed_ rev 01 Notes...
