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9-1 8
ENGINES-6-CYLINDER
PISTON R I N G -
FEELER GAGE
RING GROOVE
\
,.,165 A
Fig. 33-Measuring
Piston Ring Clearance
(3) Measure the side clearance between the piston
ring and ring land,
as
shown in Figure 33.
The clearance should be .0015 to .004 inch for the
top compression ring and the intermediate ring, and
.001 to
.009
inch for the oil control ring.
(4)
Starting with the oil ring expander, place ex-
pander ring in the lower ring groove and install the
oil control ring using instructions in the package.
(5) Install the compression rings in the middle and
top grooves. Using ring installer, Tool C-3805, be sure
the mark "TOP"
on
each compression ring is to the
top of piston.
PISTON PIN
Removal
(1) Arrange Tool C-3724 parts for the removal of
(2)
Install the pilot on the main screw.
(3)
Install the screw through the piston pin.
the piston pin (Fig. 34).
ANVIL (TOOL)
S C R E W (TOOL)
ONNECTING ROD
KRl95 B
GUIDE-LARGE (TOO
Fig. 3 6 T o O i Arrangement for Removing
Piston Pin
(Tool
C-37241
MAIN SCREW
ANVIL (TOOL1
'Fig. 35-Removing
Piston Pin
(Tool
C-3724)
(4) Install the anvil over the threaded end of the
main screw with the small end of anvil against the
piston boss.
Be sure spring is removed from anvil.
(5)
Install nut loosely on the main screw and place
the assembly on the press (Fig. 3 5 ) . Press the piston
pin out of the connecting rod.
NOTE:
When the pin falls free from the connect-
ing rod, stop the press to prevent damage to the
bottom of the anvil.
(6)
Remove the tool from the piston.
Installation
(1) Measure the piston pin fit in the piston. It
should be a sliding fit in the piston at 70 degrees F.
Piston pins are supplied in standard sizes only.
(2) Lubricate the piston pin holes in the piston and
connecting rod.
(3) Arrange the tool parts for installation of the
ANVIL (TOOL)
PILOT (TOOL)
MAIN S C R E W
GUIDE-LARGE (TOOL)
KR196 B
Fig. 36-Tooi
Arrangement for installing
Piston Pin
(Tool
C-37241
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