Checks
Checking each part
- Wash the parts to be removed using solvent for
cleaning.
- Check for possible damage to the pump body.
- Check for possible damage to the rotor
- Check for possible damage to the oil pump valve.
- Check for possible damage to the spring retaining
cap.
- Check for possible damage to the compression
spring and measure the relevant unloaded length.
Unloaded length prescribed value: 57 mm
- Apply engine oil onto the pump safety valve. In-
sert the valve in the pump and check for correct
operation.
- REPLACE EACH SINGLE DAMAGED PART. - REPLACE
THE COMPRESSION SPRING IF DAMAGED OR IN CASE
ITS UNLOADED LENGTH IS SHORTER THAN THE PRE-
SCRIBED VALUE. - REPLACE THE PUMP IF THE VALVE IS
NOT WORKING PROPERLY.
Measuring pump housing clearance, upper
part and side clearance.
1. Apply a thin layer of engine oil onto the surface
joining the oil pump assembly rotors and on the
rotor series. Fit the rotor series on the oil pump
assembly so that the drilled mark is visible from the
outside.
2. Rotor clearance - pump housing measurement
With a thickness gauge, measure clearance be-
tween the external rotor and the pump housing.
REPLACE THE OIL PUMP IF CLEARANCE EXCEEDS THE
PRESCRIBED VALUE.
Characteristic
Clearance:
0.20 - 0.28 mm
PORTER 1.3 16V Engine
EN - 357
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