Table of Contents
Advertisement
CRANK MECHANISM
Installing the pistons and connecting
rods
Installing the piston pins
Note
There is an arrow on the piston crown.
• Attach a new circlip (3) in the groove in the piston
(2)
• Align the connecting rod (5) with the piston (2) so
that the long connecting rod big end is pointing in
the direction of the arrow
• Fit the piston (2) over the connecting rod (5) as
marked
• Thinly apply clean engine oil to MAN Standard
3277 on the piston pin (4)
• Push the piston pin (4) through the piston (2) and
the connecting rod (5) as marked until the stop is
reached
• Attach a new circlip (1) in the groove in the piston
(2)
• Check that the circlips (1) and (3) are seated
correctly
If the circlips (1) and (3) have not engaged correctly,
remove and re-attach the circlips (1) and (3),
ensuring that they are seated correctly.
If the connecting rod (5) is installed in the incorrect
position relative to the piston (2), repeat the
procedure.
330
Piston installation with piston ring compressor
pliers
WARNING
Component damage due to incorrect
piston installation position
• Check the direction of the arrow on the
piston crown
• Turn the crankshaft so that the connecting rod
bearing journal is located before the cylinder of
the piston to be installed (2) (TDC)
• Align the gaps in the piston rings so they are each
offset 120° from one another and then thinly apply
engine oil to MAN Standard 3277 on the piston (2)
and connecting rod bearing
• Insert the upper connecting rod bearing into the
connecting rod, positioning it using the
tool [144]
if necessary
• Align the piston (2) so that the arrow on the piston
crown is facing the centre of the engine
• Open the
Piston ring compressor pliers [143]
and t over the piston (2)
• Clamp the
Piston ring compressor pliers [143]
• Push the piston (2) through the
compressor pliers [143]
liner as marked
• Carefully push the piston (2) through the cylinder
liner until the connecting rod bearing is lying on
the crankshaft
AE6 3st edition
Setting
(1)
(1)
Piston ring
(1) and into the cylinder
Hide quick links:
Advertisement
Table of Contents
