C15 and C18 Engines for Caterpillar Built Machines Valve Mechanism Cover Caterpillar


Valve Mechanism Cover
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Illustration 1g06570672


Illustration 2g02610257
Tightening sequence

Table 1
Item  Qty  Part  Specification Description 
18  243-1159 Fastener  Torque to 18 ± 3 N·m (159 ± 27 lb in) in the numerical sequence as shown in Illustration 2. 
272-2583 O-Ring Seal  Before assembly, lubricate the joint surfaces and seal with clean engine oil. 


Illustration 3g06570673
455-3837 Valve Cover As

Table 2
Item  Qty  Part  Specification Description 
Use the following procedure to tighten the bolts:
1. Before assembly, apply thread lock- adhesive to the threads.
2. Tighten the bolt to 8.1 ± 1.5 N·m (71.7 ± 13.3 lb in)
--  Apply Loctite Flange Sealant 5900. 

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