5.0l
/ 305 cid / 5.7l / 350 cid ENGINES
SERVICE MANUAL NUMBER 24
Cleaning and Inspection
1.
2.
3.
4.
Clean push rods and rocker arm assemblies.
Clean carbon from valves using a wire wheel.
Clean gasket material from cylinder head mating surfaces.
Clean all carbon from combustion chambers and valve ports using carbon remover
brush.
a
72334
a - Carbon Remover Brush (J-8089)
5.
Thoroughly clean valve guides with valve guide cleaner.
a
72335
a - Valve Guide Cleaner (J-8101)
6.
Inspect cylinder heads for cracks in exhaust ports, water jackets, and combustion cham-
bers (especially around spark plug holes and valve seats). Replace heads if any cracks
are found.
7.
8.
Inspect cylinder head gasket surface for burrs, nicks erosion or other damage.
Check flatness of cylinder head gasket surface, using a machinist’s straight edge and
feeler gauges as shown. Refer to “Specifications.” Take measurements diagonally
across head both ways) and straight down center of head.
a
b
72307
a - Straight Edge
b - Feeler Gauge
Index
Page 3A-34
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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