114
CHAPTER
SIX
I
----~--,.----
1
----1-
J----
I I
I I
I I
Rod cap
Piston
rings
Connecting
rod
The steel piston pin rides directly in the piston and in a
bushing in the connecting rod. Circlips at each end retain
the piston pin in the piston.
1. Before removing the piston, place the crankshaft end
of the connecting rod in a vise with soft jaws. Rock the
piston as shown in Figure 29. Any rocking motion (do not
confuse with the normal sliding motion) indicates wear on
the piston pin, piston pin bore or connecting rod small end
bore (or combination
of
these).
2. Remove the clip from each side
of
the piston pin bore
(Figure 30) with a small screwdriver or scribe. Hold a
thumb over one edge of the clip when removing it to pre-
vent the clip from springing out.
3. Use a wooden dowel or suitable tool and push out the
piston pin. If the pin is difficult to remove, heat the piston
with a hair dryer. Separate the piston from the connecting
rod.
Piston
Pin Removal/Installation
Piston/Cylinder Bore
Check
Unless precision measuring equipment is available,
have this procedure done by a machine shop.
1. Measure the piston diameter with a micrometer (Fig-
ure
31) at a right angle to the piston pin bore 9 mm (0.35
in.) from the bottom
of
the piston skirt.
Bolts
To Next Page
Loading...
