Honda Accord: Block and Piston inspection
1. Remove the crankshaft and the pistons (see page 7-14).
2. Check the piston for distortion or cracks.
3. Measure the piston diameter at a point 13 mm (0.5 in) from the bottom of the skirt. There are two standard-size pistons (No Letter or A, and B). The letter is stamped on the top of the piston. Letters are also stamped on the engine block as the cylinder bore sizes.
Piston Skirt Diameter
Standard (New);
No Letter (or A): 86.980-”86.990 mm
(3.4244-3.4248 In)
B: 86.970-”86.980 mm
(3.4240-3.4244 in)
Service Limit-
No Letter (or A): 86.930 mm (3.4224 in)
B: 86.920 mm (3.4220 in)
Oversize Piston Skirt Diameter
0.25: 87.230-87.240 mm (3.4342 -3.4346 in)
4. Measure the wear and taper in direction X and Y at three levels inside each cylinder as shown. If the measurements in any cylinder are beyond the Oversize Bore Service Limit, replace the engine block.
If the engine block is being rebored, refer to step 7 after reboring.
Cylinder Bore Size
Standard (New):
A or I- 87.010-87.020 mm
(3.4256-3.4260 in)
B or II: 87.000-87.010 mm
(3.4252-3.4256 in)
Service Limit: 87.070 mm (3.4279 in)
Oversize Bore
0.25: 87.250-87.260 mm (3.4350-3.4354 in) Reboring Limit: 0.25 mm (0.010 in) max.
Bore Taper
Limit (Difference between first 0.02 mm (0.001 in) and third measurement):
5. Scored or scratched cylinder bores must be honed.
6. Check the top of the engine block for warpage.
Measure along the edges and across the center as shown.
Engine Block Warpage
Standard (New); 0.07 mm (0.003 in) max.
Service Limit; 0.10 mm (0.004 in)
7. Calculate the difference between the cylinder bore diameter and the piston diameter. If the clearance is near or exceeds the service limit, inspect the piston and the cylinder bore for excessive wear.
Piston-to-Cylinder Bore Clearance
Standard (New): 0.020-”0.040 mm
(0.0008-0.0016 in)
Service Limit: 0.05 mm (0.002 in)
Crankshaft Inspection
Out-of-Round and Taper
1. Remove the crankshaft from the engine block (see
page 7-14).
2. Remove the crankshaft position (CKP) pulse plate
from the crankshaft (see page 7-30).
3. Clean the cr ...
Cf Hinder Bore Honing
Only a scored or scratched cylinder bore must be honed.
1. Measure the cylinder bores (see page 7-17).
If the engine block is to be reused, hone the cylinders,
and remeasure the bores.
2. Re ...
See also:
DTC Troubleshooting
DTC B112S; Driver's Power Window Motor A
Pulse Malfunction
DTC B1126: Driver's Power Window Motor B
Pulse Malfunction
NOTE: If you are troubleshooting multiple DTCs, be sure
to follow the instruc ...
Under-hood Fuse/Relay Box
Removal and Installation
Special Tools Required
Relay Puller 07AAC-000A1A0
NOTE; The under-hood fuse/relay box is a part of the left
engine compartment wire harness, and it cannot be
replaced by ...
Supplemental restraint system (SRS)
The Accord SRS Includes a driver's airbag in the steering wheel hub, a
passenger's airbag In the dashboard
above the glove box, seat belt tensioners in the front seat belt retractors,
side curtai ...