MerCruiser 305 CID (5.0L) Service Manual page 215

SERVICE MANUAL NUMBER 24
Reassembly
Be careful of twisting, shearing or collapsing pipe while installing in pump. Pickup
screen must be parallel to oil pan bottom when oil pump is installed.
1. If pickup screen and pipe assembly was removed:
IMPORTANT: Oil internal parts liberally before installation.
1. Install pressure regulator valve and related parts.
2. Install drive gear in pump body.
3. Install idler gear in pump body with smooth side of gear toward pump cover opening.
4. Align marks made in disassembly.
5. Fill gear cavity with engine oil.
6. Install pump cover and torque attaching screws to 80 lb-in. (9 Nm).
7. Turn extension shaft by hand to check for smooth operation.
Installation
1. Install pump and extension shaft to rear main bearing, aligning extension shaft with dis-
2. Install baffle. Tighten baffle nuts to 25 lb-ft (34 Nm).
3. Tighten oil pump bolt to 65 lb-ft (88 Nm).
4. Install oil pan as outlined. The one-piece gasket for the oil pan may be reused if still
Index
90-861327--1 OCTOBER 1999
a. Mount pump in a soft-jawed vise.
b. Apply Quicksilver Perfect Seal to end of new pipe.
c. Using oil pump suction pipe installer (J-21882), tap the pipe in place with a hammer.
tributor drive shaft.
a - 5 Nuts
b - Baffle
c - Oil Pump
pliable and not cracked, torn or otherwise damaged.
5.0l / 305 cid / 5.7l / 350 cid ENGINES
CAUTION
a
b c
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