Connecting Rod Bearings; Clearance; Selection - Acura 1994 Integra Service Manual

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 - l f
l i B o r ' r l l I
lEalll t
I 1 o . , , , ' l l
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
B l a € 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-
t i o n .
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
t h e c o l o r a s s h o w n i n t h e r i g h t c o l u m n ) , a n d
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