Replacement

1. See Figure 3-67. With oil pump on engine, loosen bypass fastener and front cover fasteners.

Figure 3-67. Oil Pump Fasteners

Figure 3-69. Bypass Valve

3. See Figure 3-69. Remove bypass valve assembly. Examine valve piston and valve piston bore in pump housing. There should be no scoring and valve piston should move freely in the bore without sticking.

Figure 3-70. Oil Pump Gerotor

Figure 3-68. Remove Oil Pump

4. See Figure 3-70. Examine gerotor. Replace parts showing scoring. Note assembly marks on the gerotor. Marks must be on the same side when assembling.

Figure 3-68. Remove Oil Pump

2. See Figure 3-68. Remove three fasteners holding oil pump in case.

Figure 3-73. Oil Pump Installation @ 9.7 Nm (85 in-lbs)

7. See Figure 3-73. Install pump in engine. Tighten three fasteners to 9.7 Nm (85 in-lbs).

5. See Figure 3-71. Thoroughly lubricate during assembly. Pack pump housing with Lubriplate No. 105 (NAPA Part No. 765-2651) to insure oil pick-up is immediate.

See Figure 3-74. Using a crisscross pattern, tighten the oil pump cover fasteners to 9.7 Nm (85 in-lbs).

Tighten bypass fastener to 35 Nm (25 ft-lbs).

Figure 3-71. Lubrícate Assembly

5. See Figure 3-71. Thoroughly lubricate during assembly. Pack pump housing with Lubriplate No. 105 (NAPA Part No. 765-2651) to insure oil pick-up is immediate.

Figure 3-73. Oil Pump Installation @ 9.7 Nm (85 in-lbs)

7. See Figure 3-73. Install pump in engine. Tighten three fasteners to 9.7 Nm (85 in-lbs).

See Figure 3-74. Using a crisscross pattern, tighten the oil pump cover fasteners to 9.7 Nm (85 in-lbs).

Tighten bypass fastener to 35 Nm (25 ft-lbs).

Figure 3-72. Lubricate O-Rings

6. See Figure 3-72. Install new o-rings and lubricate with Harley-Davidson Motorcycle Oil 20W50.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

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