Connecting
Rod Bearings
Clearance
Selection
CAUTION:
lf the codss are indeciphsrable bocause of
an accumulation of dirt and dust. do
not
scrub tham
with a wiro brush or scraper.
Clean them only with sol-
vont or
dotetgenl.
Connecting
Rod Code
Location
A number has been stamped on the side of each con-
necting rod as a code for the size of the big end. Use
it,
and the
letters stamped on the crank
(codes
for rod
jour-
nal size), to choose the correct bearings.
tF;l I t
l-lf
liBor'rll I
lEalll t
I
1o.,,,'ll
L
Smaller Smaller
rod bearing
journal
(thicker|
Half of number
is
stamped on bearing
cap and
the other
half is stamped on
rod.
Conn.cting
Rod Joumsl
Codc LocatioN
lLotteE
or B.trl
Berring ldcntification
t
2
3
Color code
is
on the edge
of
the bearing.
Larger big end bore
Smaller bearing {thicker)
Red
Gr€€n
Elack
Bla€k
Blue
1.
Remove the connecting
rod
cap and
bearing half.
2. Clean the crankshaft
rod
journal
and bea.ing
half
with a clean shoo towel.
3.
Place the
plastigage
across
the rod
journal.
4. Reinstall the
bearing half and cap,
and torque the
nuts.
81881 sngino: 31 N'm
13.2
kgf.m,23 lbt'ft)
818C1 sngine:
4,1 N.m
14.5
kgf.m. 33
lbf'ft}
NOTE: Do
not rotate the crankshaft during
inspec-
tion.
Connecting
Rod B€aring-to-Journal
Oil Clcalancr:
8l88l ongine:
Standard
(New):
0.020
-
0.038
mm
{0.0008
-
0.0015 in)
Servica
Limit: 0.050 mm
(0.0020
inl
818C1 engin€:
Standard
(New):
0.032
-
0.050
mm
(0.0013
-
0.(XP0
inl
Service
Limit: 0.060
mm
(0.0024
in)
ll the
plastigage
measures too wide or too
narrow,
remove the upper
half
of
the bearing. install a
new,
complete
bearing with the same
color code
(select
the color as shown
in the right column),
and
recheck the clearance.
CAUTION:
Do
not file, shim, or scrape lhe bearing
or the capg tq
adiust clgaranca.
lf the
plastigage
shows the clearance
is still incor-
rect, try the
next la.ger or smaller bearing
{the
color
listed above or below that
one), and check clear-
ance again.
NOTE: lf the
proper
clearance cannot be obtained
by using the
appropriate
larger
or
smaller bearings,
reolace the crankshaft
and stan over.
1.
PLASTIGAGE
STRIP
To Next Page
Loading...
