Installing Pistons - BMW R 1100 RT Repair Manual

Installing pistons

•
Turn joint in oil scraper ring (arrow) so that it
faces upwards.
•
Install piston ring gap offset by 120° in each
case.
Production locating point X = install on exhaust side.
e
Caution:
Ensure that retaining rings are properly seated on
piston pin. Oil the sliding-contact faces. Always use
pistons of the same weight class in any one engine.
Markings: .................................................... + or —
See Technical Data
a
e
Caution:
Always install pistons and cylinders in pairs. Do not
accidentally confuse pistons or piston pins
Piston size identificatio
On piston crown A, B, AB (for either A or B cylinder),
and on cylinder A, B
X
RS110430
11.89