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Cylinder Block
Inspection
1 . M e a s u r e w e a r a n d t a p e r i n d i r e c t i o n
three levels in each cylinder as shown.
X a n d Y a t
{0.24 in}
6 m m
t
First
Second
Third
Measurement
6 mm 10.24 in)
CYLINDER BORE GAUGE
Cylinder Bore Size:
Standard (N€w): 81.00 - 81.02 mm
(3.189 - 3.190 inl
Service Limit:
81.07 (3.192 inl
Oversize:
0.251 81.25 - 41.27 mm 13.199-3.200 inl
Bore Taoer:
S€rvice Limit:
lDifference betwcen first and third
measu;ement) 0.05 mm (0.002 inl
.
l f m e a s u r e m e n t s i n a n y c y l i n d e r a r e b e y o n d
Oversize Bore Service Limit, replace the block.
. l f t h e b l o c k i s t o b e r e b o r e d , r e l e r t o P i s t o n
Clearance Inspection (see page 7-16) after rebor-
I n g .
NOTE: Scored or scratched cylinder bores must be
n o n e o ,
Reboring Limit: 0.25 mm (0.01 inl
ll
:i
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I
Check the top oI the block for warpage.
Measure along the edges and across the center as
sh own.
SURFACES TO 8E MEASURED
Engine Block Warpage:
B188l engine:
Standard {New}: 0.07 mm (0,003 inl max.
Service Limit:
0.10 mm {0.004 in)
818C1, 818C5 engines:
Standard (Newl:0.05 mm 10.002 inl max.
Service Limit:
0.08 mm (0.003 in)
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PRECISION STRAIGHT EDGE
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Troubleshooting
