SCREW-PURGE 2G5459 - Caterpillar

Illustration 1 g01434826 (1) Before assembly, lubricate the threads of the adapter with 4C-5599 Anti-Seize Compound.
The pipe plug at location (2) is installed in the cylinder head for engines with dry exhaust manifolds. If the pipe plug is not installed into the water passage, the coolant will leak and engine damage will result. For engines with dry exhaust manifolds, make sure that the pipe plug is installed.
Illustration 2 g01413732
Typical example
(A) Height of the new cylinder head ... 142.00 0.15 mm (5.591 0.006 inch)Note: Before assembly, apply 6V-6640 Sealant to the bore of the ten cup plugs. (B) Depth of the two cup plugs from the top surface of the cylinder head ... 9.0 0.5 mm (0.35 0.02 inch) (D) Depth of the eight cup plugs from the top surface of the cylinder head ... 1.0 0.5 mm (0.04 0.02 inch)
Illustration 3 g01434823
Cleaning agents may contain chlorine that will cause stress corrosion on bolt heads. This can result in failure of the bolt. Use the appropriate cleaning procedure for bolts.
Use the following procedure in order to tighten the cylinder head bolts:Note: Coat the bolt threads with clean engine oil before assembly.
Tighten the bolts in the numerical sequence that is shown in Illustration 3 to 30 5 N m (22 4 lb ft).
Tighten the bolts in the numerical sequence that is shown in Illustration 3 to 270 35 N m (200 26 lb ft).
Tighten the bolts in the numerical sequence that is shown in Illustration 3 to 450 20 N m (330 15 lb ft). Note: Tighten the bolts (3) only after the cylinder head bolts have been given final torque. (3) Torque for the two bolts ... 55 10 N m (41 7 lb ft)