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LP Engine G430(3.0L) Base Engine Service Procedure
6. Inspect the valve springs for squareness.
7. Measure the valve seat runout.
• Use the J 8001 in order to check the valve seat
runout.
• The valve seats should be concentric to within
0.0508 mm (0.002 in).
8. Measure the cylinder head for warpage with a straight
edge and a feeler gauge. A cylinder head with
excessive warpage must be repaired or replaced.
Refer to Engine Mechanical Specifications.
Valve Guide Reaming/Valve and
Seat Grinding
1. Ream the valve guides for oversize valves if the
clearance exceeds the specifications.
2. Service valves are available in the standard and
0.038 mm (0.015 in).
3. Ream the valve guide bores for the service valves
as necessary
VE098-3L
VE097-3L
VE096-3L
VE095-3L
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