OIL� PUMP
Removal� &� Disassembly
1. Remove� oil� pan.� See OIL� PAN� under� REMOVAL� &� INSTALLATION.� Disconnect� pick up� tube� from� main� bearing� cap� stud.� Remove� oil� pump� attaching� bolts.� Remove� oil� pump� assembly� with� oil� pump� drive
shaft.
2. Remove� pick up� tube� from� pump.� Disassemble� oil� pump.� Note� direction� of� component� installation� for� reassembly� reference.
Inspection
Inspect� components� for� damage.� Measure� rotor� end� clearance, � outer� race to housing� clearance� and� rotor� tip� clearance.� Check� clearance� between� pressure� relief� valve� and� bore.� Measure� relief� valve� tension.� Replace� oil
pump� assembly� if� measurements� are� not� within� specifications.� See� the OIL� PUMP� SPECIFICATIONS� table.
OIL� PUMP� SPECIFICATIONS
Application In.� (Mm)
Drive� Shaft To Housing� Bearing� Clearance .0015 .0030� (.038 .076)
Rotor� End� Clearance� (Max) .004� (.10)
Outer� Race To Housing� Clearance .001 .013� (.03 .33)
Relief� Valve To Bore� Clearance .0015 .0030� (.038 .076)
Relief� Valve� Spring� Tension (1)
(1) Spring� tension� should� be� 12.6 14.5� lbs.� @� 1.20"� (5.7 6.8� kg� @� 30.5� mm).
Reverse procedure for reassembly make sure pum is primed before installation and ensure rotors are installed in orignal position.
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Monday, December 24th, 2012 AT 2:09 PM