Crankshaft Main Bearing Replacement - Honda Accord 2008 Manual

07/11/02 09:09:27 61TA0000_070_0006
Engine Block

Crankshaft Main Bearing Replacement

Main Bearing Clearance Inspection
1. To check the main bearing-to-journal oil clearance,
remove the lower block and the bearing halves
(see page 7-15).
2. Clean each main journal and the bearing half with a
clean shop towel.
3. Place one strip of plastigage across each main
journal.
4. Reinstall the bearings and the lower block, then
torque the bolts to 29 N·m (3.0 kgf·m, 22 lbf·ft).
NOTE: Do not rotate the crankshaft during
inspection.
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5. Tighten the bearing cap bolts an additional 56 °.
7-6
6. Remove the lower block and bearings again, and
measure the widest part of the plastigage.
Main Bearing-to-Journal Oil Clearance
No. 1, 2, 4, 5 Journals:
Standard (New): 0.017 − 0.041 mm
(0.0007 −
Service Limit: 0.050 mm (0.0020 in.)
No. 3 Journal:
−
Standard (New): 0.025 0.049 mm
(0.0010 −
Service Limit: 0.055 mm (0.0022 in.)
7. If the plastigage measures too wide or too narrow,
remove the crankshaft, and remove the upper half
of the bearing. Install a new, complete bearing with
the appropriate color code(s), and recheck the
clearance. Do not file, shim, or scrape the bearings
or the caps to adjust clearance.
8. If the plastigage shows the clearance is still
incorrect, try the next larger or smaller bearing (the
color listed above or below the current one), and
check again. If the proper clearance cannot be
obtained by using the appropriate larger or smaller
bearings, replace the crankshaft and start over.
ＴＡ０８ＡＥ４Ａ１８３１６６１７５０２ＫＢＡＴ００
0.0016 in.)
0.0019 in.)
＊０２