Robin America EX13, Service Manual

Page: 35 / 88

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(4) PISTON AND CONNECTING ROD
The piston is attached to the connecting rod by
the piston pin.
When assembling the piston and connecting rod,
make sure to align the mark on the piston head with
the ‘MAG’ mark on the connecting rod.
NOTE 1: Before assembling the connecting rod,
apply oil to its small end.
NOTE 2: Be sure to insert the clips in the two ends
of the piston pin and check the clips for
any play.
Fig. 5-34
MA
G
When assembling the
piston and connecting
rod, make sure to align
the mark on the piston
head with the ‘MAG’ mark
on the connecting rod.
(5) CONNECTING ROD
(a) Install the piston and connecting rod assembly into
the cylinder by holding the piston rings with the
ring guide, with the ‘MAG’ mark on the connecting
rod on the flywheel side. (If you do not have a ring
guide, hold the piston rings with the fingers and
tap the upper part of the piston with a piece of
wood.)
NOTE 1: Apply oil to the piston rings, the large end
of the connecting rod and cylinder before
installing the connecting rod into the
cylinder.
NOTE 2: The piston ring gaps should be positioned
around the piston at 90-degree intervals.
(See Fig. 5-36)
Fig.5-35
Fig.5-36
MA
G
PISTON RING GUIDE
CONNECTING ROD
"MAG" MARK
FLYWHEEL SIDE
SECOND RING
OIL RING
TOP RING