CYLINDER BLOCK AS 4373429 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5S-1330 Valve Spring Compressor 1
B 4C-9496 Spring Tester 1 Start By:
Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g03334349
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Use Tooling (A) to compress inner valve spring (3) and outer valve spring (4). Remove valve spring keepers (1).
Carefully remove Tooling (A).
Remove valve rotator (2), inner valve spring (4), and outer valve spring (3).
Remove washer (5) from the exhaust valve guide.
Remove exhaust valve (6) and inlet valve (7 ) from the valve guides. Note: If the exhaust valves or the inlet valves will be reused, put identification marks on the exhaust valves and the inlet valves for installation purposes.
Illustration 2 g01133465
Use Tooling (B) to check the valve springs (spring force). Refer to Specifications, "Cylinder Head Valves" for additional information on the valve springs. Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 5S-1330 Valve Spring Compressor 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Install inlet valves (7) and exhaust valves (6) in the reverse order of removal.