Servicing - Kubota D1503-M-DI Workshop Manual

03-M-DI Series, WSM

[2] Servicing

Rotor Lobe Clearance
1. Measure the clearance between lobes of the inner rotor and the
outer rotor with a feeler gauge.
2. Measure the clearance between the outer rotor and the pump
body with a feeler gauge.
3. If the clearance exceeds the factory specifications, replace the oil
pump rotor assembly.
Clearance between
inner rotor and outer Factory spec.
rotor
Clearance between
outer rotor and pump Factory spec.
body
Clearance between Rotor and Cover
1. Put a strip of plastigage (Code No.: 07909-30241) onto the rotor
face with grease.
2. Install the cover and tighten the screws.
3. Remove the cover carefully, and measure the width of the press
gauge with a sheet of gauge.
4. If the clearance exceeds the factory specifications, replace oil
pump rotor assembly.
Clearance between
Factory spec.
inner rotor and cover
S-82
DIESEL ENGINE
0.03 to 0.14 mm
0.0012 to 0.0055 in.
0.11 to 0.19 mm
0.0043 to 0.0075 in.
W1035296
0.105 to 0.150 mm
0.00413 to 0.00591 in.
W1035444
KiSC issued 10, 2009 A