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HEAD GASKET INSPECTION AND REPAIR SEQUENCE
DIAGNOSING ENGINE MALFUNCTIONS

Maintenance Manual For Hydraulic Excavator 230Lcr And 230Lcrd With Rock Drill 2
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TM 5-3805-280-24-2
Engine System Operation and Tests
Check liner flange flatness/finish.
Check surface flatness/finish.
105
17
Check liner flange thickness (if liner is removed).
Inspect for surface damage.
Inspect flange for damage.
Check cylinder head thickness, if resurfacing.
Cylinder Head Cap Screws (See Group 05.)
Cylinder Block and Liners (assembled and
clamped) (See Group 05 or 10.)
Inspect for corrosion damage.
Check liner standout at four places on each liner.
Inspect condition of threads.
Check liner standout difference between
Inspect for straightness.
Check length.
cylinders.
9. When inspections and measurements have been
Cylinder Block (See Group 10.)
completed, determine most probable causes of joint
Check surface flatness/finish.
failure. Make all necessary repairs to joint
Inspect for surface damage.
components, cooling system, and fuel injection
Check liner counterbore depth (if liner is
system.
removed).
Check top deck to crankshaft centerline
10. Reassemble the engine according to procedures
and specifications in the repair groups of this
dimension.
Inspect cap screw bosses, must be clean/intact.
manual.
Cylinder Liner (See Group 10.)
RG,105,JW7656 1921NOV972/2
13-494


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