Sometimes there
is no web or bridge between the exhaust ports, so you only
have one wide, rectangular port.
WRIST PIN with
pad
Usually the wrist
pin with a pad will have the pad opposite the exhaust. The
pad must always run against a portion of the cylinder. I can
not pass over an open port. If it does it has the possibility
of popping into the open port and causing damage.
WRIST PIN with
snaps
This wrist pin
can be installed either direction.
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