84
Scale
/
Connecting Rod
Bc
arin~
Clearance
Measurement
I. Place the connecting rod and uppe r bearing
half
on the
connecting rod journal.
2. Cut a piece
ofPla
stigagc the width of the bearing
(
"'
i~
ure 43). Place the Plastigagc on the journal. then install
the rod cap and bearing. Be sure to install
me cap so the
markson the cap and rod arc on the same side
(Fig
u
re.
U ).
,VOTE
Do not
place
Pl
a_~/iKage
owr
the
joum
aloil
hole.
3. Tighten the connecting rod cap to the specification in
T
abl
e 2. Do not rotate the crankshaft while the Plastigagc
is in place.
4. Remove the connecting
rod cap. To determine bearing
clearance. compare the width of the llattcncd Plasugagc
to the markings on the envelope
(F
i~
u n'
45). If the clear-
ance is excessive, have the crankshaft reground and install
undersize bearings.
CHAPTER
FIVE
Second
ring
12{)°
Top
ring
Piston/Connecting Rod Installation
1. Rotate the crank shaft so the crankpin is at bottom dead
center.
2. Make sure the ring
gaps
are positioned as she
.....
n in
Ffgurc
46.
3. Immerse the entire piston in clean engine oil. Coal the
cylinder wall with oil.
4. Install a piston ring compressor
around
the piston
nngs.
CAUT
ION
Use
ex
treme C1II
1'
in Step 5 to prevent the
connecting
rodfrom
nicking the crankshaft
journal.
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