6G–6 ENGINE LUBRICATION
2. Use a feeler gauge to measure the clearance
between the body and the gear side surfaces.
If the clearance between the gears and the body
exceeds the specified limit, the gears and/or the
body must be replaced.
Gear and Body Clearance
Standard: 0.064 – 0.109 mm (0.0025 – 0.0043 in)
Limit: 0.109 mm (0.0043 in)
3. Use a micrometer to measure the gear shaft outside
diameter.
Gear Shaft Outside Diameter
Standard: 15.989 – 16.000 mm (0.6295 – 0.6299 in)
Limit: 15.9 mm (0.626 in)
4. Use an inside dial indicator or inside micrometer to
measure the pump body inside diameter and the
cylinder block bushing inside diameter.
If the clearance between the gear shaft and the
pump body or bushing exceeds the specified limit,
the oil pump assembly and/or bushing must be
replaced.
Gear Shaft and Pump Body or Bushing
Clearance
Standard: 0.04 – 0.07 mm (0.0016 – 0.0028 in)
Limit: 0.07 mm (0.0028 in)
5. Check the ball and the valve spring for excessive
wear and damage.
051EY00019
051EY00017
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