Oil pump removal, Inspection, Installation – Generac 86640 User Manual

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Section 2.4- OIL PAN AND OIL PUMP

Oil Pump Removal

Drain engine oil. Then, remove oil pump assembly with

oil strainer. BE CAREFUL NOT TO DROP THE OIL PUMP
DRIVE SHAFT.

Inspection

Refer to Part 3, ‘ENGINE LUBRICATION SYSTEM'.

Installation

1. Install the oil pump assembly and tighten to 13-16 foot

pounds (18-22 N-m).

CAUTION: Before tightening the oil pump assem
bly, rotate the oil pump drive gear to make sure
that the pump drive shaft does not interfere with

inner wall of cylinder block.__________________________

2. Apply RTV gasket sealant to oil pan as shown in Figure 47.

3. Install oil seals. Apply RTV sealant to upper and lower
surfaces of gaskets as shown (Figure 48).

4. Install gaskets and oil pan. Tighten bolts to 2.9-3.6 foot
pounds (4-5 N-m).

Figure 47. Apply RTV Gasket Sealant

Apply sealant

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