262
CID (4.3L) ENGINES
SERVICE MANUAL NUMBER 25
5.
Thoroughly clean valve guides with valve guide cleaner.
a
72335
a - Valve Guide Cleaner (J-8101)
Inspection
1.
2.
Inspect cylinder heads for cracks in exhaust ports, water jackets, and combustion
chambers (especially around spark plug holes and valve seats). Replace heads if any
cracks are found.
Inspect cylinder head gasket surface for burrs, nicks, erosion or other damage. Also,
check flatness of cylinder head gasket surface, using a machinist’s straight edge and
feeler gauges as shown. Take measurements diagonally across head (both ways) and
straight down center head. Refer to “Specifications.”
a
b
72885
a - Straight Edge
b - Feeler Gauge
IMPORTANT: Cylinder head-to-block gasket surface should be resurfaced if warped
more than specified. When head resurfacing is required, cylinder head-to-intake
manifold gasket surface on head must be milled to provide proper alignment
between intake manifold and head.
3.
Inspect valves for burned heads, cracked faces or damaged stems.
Index
Page 3A-48
90-861328--1 NOVEMBER 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 1262 CID, Mercury MerCruiser 262 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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