Tappets Inspection (4.0L); Cylinder Block Inspection (4.0L) - Mazda B-Series 1997 Workshop Manual

B3
INSPECTION I REPAIR
Minimum
IN: 10.094mm (0.3974 in}
EX: 10.094mm (0.3974 in)
5. Measure the camshaft oil clearance.
(1) Measure the camshaft bore (A).
(2) Measure the camshaft journal diameter (B).
(3) Subtract B from A
=
oil clearance
Oil clearance
Standard: 0.0254-0.0660mm (0.001 0-0.0026 in)
Maximum: 0.1524mm (0.006 in)
1
1
6. Measure the camshaft end play.
End play
0.065-0.1 65 mm (0.025-0.064 in)
TAPPETS
Inspect the tappet friction surfaces for wear and damage.
Replace the tappet if necessary.
6BUOB3-008
I
I
MB1089-B 4811083-I 14
CYLINDER BLOCK
1 .
Check the cylinder block for the following and repair as
necessary.
(1 )
Leakage damage
(2)
Cracks
(3) Scoring of wall
2. Using a straightedge, measure the cylinder block decks
for distortion in six directions.
Distortion: 0.07mm (0.003 in) per 152.4mm (6.0 in}
3. If distortion exceeds the maximum, replace the cylinder
block.
4.
Measure the cylinder bore diameter in X and Y directions
at
three levels (A, 6 and C) as shown.
mm {in)
Size Diameter
- -
Standard
I
100 40-1 00 43 {3 9527-3 9543)
0.50 {O 020) overslze ~ 0 ~ 9727--~ 974%