SEAL 4514725 - Caterpillar

Table 1
Valve Lash Settings for C175 Engines    
Valve Type     New Setting     Former Setting    
Inlet     0.80 0.08 mm (0.031 0.003 inch)    
1.0 0.08 mm (0.039 0.003 inch)    
Exhaust    
1.30 0.08 mm (0.051 0.003 inch)    
1.5 0.08 mm (0.059 0.003 inch)    Use the new valve lash settings under the following circumstances:
During scheduled maintenance for the valve lash
When other service on the engine disturbs the valve lashNote: If engine service disturbs the valve lash for any cylinders, use the new valve lash for all of the cylinders at that time.