39MS 192 T
Remove the engine, b 8.4.1
Remove the crankshaft, b 8.5.1
: Use a suitable tool to prise the
hookless snap ring out at the
recess (arrow).
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: Apply the assembly drift (1)
1114 893 4700 to the opposite
side of the snap ring.
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1
: Push the piston pin (1) out of the
piston with the assembly drift (2)
1114 893 4700.
If the piston pin is stuck, lightly tap
the end of the assembly drift with a
hammer to loosen it.
The piston must be held steady
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12
during this process to ensure that
jolts are not transmitted to the
connecting rod.
: Remove the piston (1) from the
connecting rod.
– Inspect the piston rings and
replace if necessary, b 8.7
1
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– Coat the needle cage with oil.
: Align the piston so that the side
with the bulge for the snap ring
(arrow) is on the same side as the
tapered crankshaft stub (1).
– Position the piston on the small
1
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end.
: Fit the assembly drift (1)
1114 893 4700, small diameter
first, through the piston hole and
small end (needle cage) and line
up the piston.
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1
8.6 Piston
8.6.1 Removal
8.6.2 Installation
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