Block And Piston Inspection - Honda Accord 2008 Manual

07/11/02 09:09:33 61TA0000_070_0018
Engine Block

Block and Piston Inspection

1. Remove the crankshaft and the pistons (see page
7-15).
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
B:
Service Limit:
No Letter (or A): 86.930 mm (3.4224 in.)
B:
Oversize Piston Skirt Diameter
0.25: 87.230 87.240 mm (3.4342 3.4346 in.)
＊０１
13 mm
(0.5 in.)
＊０２
7-18
−
−
(3.4244 3.4248 in.)
86.970 86.980 mm −
(3.4240 3.4244 in.) −
86.920 mm (3.4220 in.)
− −
Piston Skirt Diameter
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 (0.01 in.) max.
Bore Taper
Limit (Difference between first
and third measurement):
6 mm (0.2 in.)
First Measurement
Second Measurement
Third Measurement
6 mm (0.2 in.)
X
Y
ＴＡ０８ＡＥ４Ａ１８３０００２４７５１ＭＡＡＴ００
−
0.02 mm (0.008 in.)
No. 4 No. 1
＊０３