10. Cylinder Block/Head
145
Tappet and Pushrod
Tappet Clearance
EDM2061I
1. Measure the outside diameter of the tappet and the
inside diameter of the cylinder block tappet hole. If the
measurement exceeds the allowable limit, replace the
tappet.
• Clearance between cylinder block and tappet
Inspecting the Tappet Visually
EA0M4070
1. Check the surface of the tappet which slides in contact
with the camshaft for scratches, cracks and other
damage. For minor damage, use an oily grindstone or
fine sandpaper to polish the surface. For severe damage,
replace the tappet.
Pushrod Deflection
EA0M4073
1. Place the pushrod on a surface plate and measure its
deflection with a feeler gauge while rolling it. If the
measurement exceeds the allowable limit, replace it with
a new one.
• Pushrod deflection
Reference value Allowable limit
0.035 ~ 0.077 mm
(0.0014 ~ 0.0030 in.)
0.15 mm (0.0059 in.)
(1) Bumpy
(4) Abnormal
(2) Cracked (3) Normal
Allowable limit 0.3 mm (0.0118 in.) or less
Feeler gauge
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