5.0l
/ 305 cid / 5.7l / 350 cid ENGINES
SERVICE MANUAL NUMBER 24
Cleaning and Inspection
Clean camshaft bearing bores in cylinder block with solvent and blow out with compressed
air. Be sure grooves and drilled oil passages are clean.
Installation
Front and rear bearings must be installed last as pilot will not fit into bearing bores if bearings
are installed.
Lubricate outer surface of new camshaft bearings with engine oil to ease installation.
INDEXING BEARING
IMPORTANT: All camshaft bearings are not the same. Be sure to install bearings in
proper locations (Indicated by bearing manufacturer) and to position bearings as fol-
lows (directional references are in reference to engine in its normal operating posi-
tion):
•
Front bearing must be positioned so that oil holes are equal distance from 6
o’clock position in the block. Intermediate and center bearings must be
positioned so that oil holes are at the 5 o’clock position (toward left side of
block and at a position even with bottom of cylinder bore). Rear bearing must
be positioned so that oil hole is at the 12 o’clock position.
INTERMEDIATE AND CENTER BEARINGS
1.
2.
3.
4.
Install nut and thrust washer onto puller screw.
Position pilot in front camshaft bearing bore and insert screw through pilot.
Index center camshaft bearing.
Position appropriate size removal and installation tool in bearing and thread puller screw
into tool. Be sure at least 1/2 in. (13 mm) of threads are engaged.
5.
6.
7.
Using two wrenches, hold puller screw and turn nut until bearing has been pulled into
position.
Remove the removal and installation tool and ensure that oil hole(s) in bearing are posi-
tioned correctly.
Install intermediate bearings in same manner. Ensure bearings are indexed correctly.
Position pilot in rear camshaft bearing bore to install rear intermediate bearing.
FRONT AND REAR BEARINGS
1.
2.
3.
Install appropriate size removal and installation tool on drive handle.
Index front bearing and drive it into position with tool.
Ensure bearing is positioned correctly. Index rear bearing and drive it into position with
tool.
4.
Install a new camshaft rear plug.
IMPORTANT: Plug must be installed flush to 1/32 in. (0.8 mm) deep and must be
parallel with rear surface of cylinder block.
5.
Install crankshaft and camshaft.
Index
Page 3A-82
90-861327--1 OCTOBER 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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