Honda 2004 Odyssey Service Manual page 239

Engine Block
Connecting Rod Bearing Replacement (cont'd)
Rod Bearing Selection
Connecting Rod Bore Code Locations
1. Inspect the connecting rod for cracks and heat
damage.
2. Each rod has a tolerance range (from 0 to 0.024 mm
(0.0009 in.), in 0.006 mm (0.0002 in.) increments)
depending on the size of its big end bore.
It's then stamped with a code (1, 2, 3, or 4/l, ll, lll, or
llll) indicating the range.
You may find any combination of 1, 2, 3, or 4/l, ll, lll,
or llll in any engine.
If you cannot read the codes because of an
accumulation of dirt and dust, do not scrub them
with a wire brush or scraper. Clean them only with
solvent or detergent.
Half of the number or bar is stamped on the
bearing cap and the other half is stamped on the
rod.
Normal Bore Size:
7-10
58.0 mm (2.28 in.)
Connecting Rod Journal Code Locations (Letters or
Bars)
3. Letters or bars have been stamped on the
crankshaft No. 1 web as a code for the rod journal
sizes.
No. 1 JOURNAL
(PULLEY END)
4. Use the connecting rod bore codes and journal
codes to select the appropriate rod bearings from
the table.
1 or I
Pink
A or I
Pink/
B or II
Yellow
Yellow
C or III
Yellow/
D or IIII
Green
Green
E or IIIII
Green/
F or IIIIII
Brown
NOTE:
Smaller Smaller
• When using bearing halves of
rod bearing
different colors, it does not
Journal (Thicker)
matter which color is used in the
top or bottom.
• Color code is on the edge of
the bearing.
No. 6 JOURNAL
(DRIVE PLATE END)
Larger big end bore
2 or II 4 or IIII
3 or III
Smaller bearing (Thicker)
Pink/ Yellow Yellow/
Yellow Green
Yellow Yellow/
Green
Green
Green Green/
Yellow/
Brown
Green
Green/
Green Brown
Brown
Green/ Brown Brown/
Brown
Black
Brown Brown/ Black
Black