ENGINE
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1、CHECK
1). Checking the oil pump
• rotor housing
• rotor cover
Cracks/wear/damage
Replace.
• oil pump operation
Unsmooth
Repeat steps #1 and #2 or
replace the defective parts.
2) Checking the timing chain and guides
• timing chain
Cracks/stiff
Replace the timing chain and
camshaft sprocket as a set.
• timing chain guides
Wear/damage
Replace.
2、MEASURE
1). Measure the oil pump
• tip clearance(a)
(between the
inner
rotor
① and the out rotor ②)
• side clearance(b)
(between the outer rotor ② and the pump
housing ③)
• body clearance (c)
(between the outer rotor ② and the pump
housing ③)
Out of specification
Replace the oil pump.
Tip clearance Limit: 0.23 mm
Side clearance Limit: 0.17 mm
Body clearance Limit: 0.24 mm
3、INSTALL
1). Assembling the oil pump
• inner rotor
• outer rotor
• oil pump shaft
(with the recommended lubricant)
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