Nanni 5.280HE Workshop Manual

Contents

Nanni 5.280HE Workshop Manual Manual pdf 108 page image

S-9103-M Series, WSM DIESEL ENGINE[2] SERVICINGRotor Lobe Clearance1. Measure the clearance between lobes of the inner rotor and theouter rotor with a feeler gauge.2. Measure the clearance between the outer rotor and the pumpbody with a feeler gauge.3. If the clearance exceeds the factory specifications, replace the oilpump rotor assembly.W1035296Clearance between Rotor and Cover1. Put a strip of plastigage 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 pressgauge with a sheet of gauge.4. If the clearance exceeds the factory specifications, replace oilpump rotor assembly.W1035444Clearance betweeninner rotor and outerrotorFactory spec. 0.03 to 0.14 mm0.0012 to 0.0055 in.Clearance betweenouter rotor and pumpbodyFactory spec. 0.11 to 0.19 mm0.0043 to 0.0075 in.Clearance betweeninner rotor and cover Factory spec. 0.105 to 0.150 mm0.00413 to 0.00591 in.KiSC issued 08, 2012 A