7. CYLINDER/PISTON
7-6
Downtown 300i ABS
Measure the connecting rod small end
I.D.
Service Limit: 15.06 mm replace if over
PISTON RING INSTALLATION
Install the piston rings onto the piston.
Apply engine oil to each piston ring.
• Be careful not to damage the piston
and piston rings during assembly.
• All rings should be installed with the
markings facing up.
• After installing the rings, they should
rotate freely without sticking.
• Stagger the ring end gaps as the figure
shown.
＊
Second
Side Rail
Top
Second
Top
Side Rail
Oil Ring
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