Z Series E85 M roadst (S54) ROADST
11 25 671
Replacing piston rings on all pistons (S62 /
S54)
(piston removed)
Remove piston rings with piston-ring compressing pliers.
Note:
It might not be possible to find the identification on used
piston rings.
Put aside piston rings in correct sequence and installation
position.
Installation:
Insert piston rings with the word "TOP" facing piston crown.
1)
Plain compression ring "TOP"
2)
Tapered compression ring "TOP"
3)
Slotted oil-scraper ring with rubber-lined spring
Offset the contact points of the piston rings by approx. 120
°
to
each other but do not position above the piston pin boss.
Measure axial play.
Axial clearance.
RA Replacing piston rings on all pistons (S62 / S54)
BMW AG - TIS
06.02.2013 19:40
Issue status (12/2007) Valid only until next DVD is issued
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