3. End clearance measurement
With thickness gauge, measure clearance be-
tween the end (tip) of the internal rotor and that one
of the external rotor.
REPLACE THE ROTOR SERIES IF CLEARANCE EXCEEDS
THE PRESCRIBED VALUE.
Characteristic
Clearance
0.16 - 0.24
4. Side clearance measurement
With a rectified bar section and a thickness gauge,
measure side clearance between rotors and the oil
pump housing.
REPLACE THE OIL PUMP IF CLEARANCE EXCEEDS THE
PRESCRIBED VALUE.
Characteristic
Maximum clearance allowed:
0.04 - 0.08 mm
WEAR CHECK
Check if the pump cover rotor series connection
surface is worn.
- REPLACE THE OIL PUMP COVER IF WORN.
Fitting
1. Apply engine oil onto the valve and insert, af-
terwards, the valve inside the oil pump body.
2. Insert the compression spring and or the spring
retaining cap inside the oil pump body.
N.B.
- WASH THOSE PARTS TO BE FITTED USING SOLVENT
FOR CLEANING. DRY THEM BLOWING COMPRESSED
AIR. - WHEN COMPRESSED AIR IS USED, PROTECT EYES
BY WEARING PROTECTIVE GOGGLES. - FIT THE SPRING
RETAINING CAP SO THAT THE PROTRUDING PART IS
PLACED ON THE COMPRESSION SPRING SIDE.
PORTER 1.3 16V Engine
EN - 353
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