3 Series E30 318is (M42) SAL
Replacing / checking piston rings (M42)
Remove piston rings with a piston-ring compressing pliers.
Note:
It might not be possible to find the identification on used
piston rings.
Lay piston rings to one side in correct sequence and
installation position.
Installation:
Insert piston rings with "TOP" facing piston crown.
1 - Rectangular section ring
2 - Taperface ring
3 - Steel band ring (oil scraper ring)
Arrange piston ring contact points with offset of approx. 120
°
to
one another - but not over piston pin eye.
Installation:
The oil scraper ring consists of two steel band rings (1) and
one spring ring (2).
Install all parts separately.
Offset contact points at approx. 120
°
intervals.
Measure side clearance:
Specification, refer to Technical Data
RA Replacing / checking piston rings (M42)
BMW AG - TIS
22.01.2013 00:11
Issue status (12/2007) Valid only until next DVD is issued
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