CYLINDER GP-LIFT 4225457 - Caterpillar

Illustration 1 g01436665
Note: When the bolts are removed from the cylinder head the bolts must be replaced with new cylinder head bolts.Note: Lubricate the bolt threads, the underside of the bolt heads, and the washers with 6V-4876 Lubricant prior to assembly.Use the following procedure in order to tighten the cylinder head bolts:
Tighten bolt (1) through bolt (26) in a numerical sequence.Tighten the bolts to the following torque. ... 160 15 N m (120 11 lb ft)
Tighten bolt (1) through bolt (26) again in a numerical sequence.Tighten the bolts again to the following torque. ... 160 15 N m (120 11 lb ft)
Place a mark on bolt (1) through bolt (26) . Rotate bolt (1) through bolt (26) in a numerical sequence.Rotate the bolts in the clockwise direction. ... 90 degrees (1/4 turn)
Loosen bolt (1) through bolt (26) until the washers are loose under the bolt heads.
Tighten bolt (1) through bolt (26) in a numerical sequence.Tighten the bolts to the following torque. ... 160 15 N m (120 11 lb ft)
Tighten bolt (1) through bolt (26) again in a numerical sequence.Tighten the bolts again to the following torque. ... 160 15 N m (120 11 lb ft)
Place a mark on bolt (1) through bolt (26) . Rotate bolt (1) through bolt (26) in a numerical sequence.Rotate the bolts in the clockwise direction. ... 90 degrees (1/4 turn)
Tighten bolt (27) through bolt (33) in a numerical sequence.Tighten the bolts to the following torque. ... 28 7 N m (20 5 lb ft)
Illustration 2 g01436674
View A-A (A) The cup plugs are measured from the head face to the top edge of the plug. Depth of installation ... 1.25 0.25 mm (0.049 0.010 inch)Height of new cylinder head ... 105.00 0.15 mm (4.134 0.006 inch)Minimum permissible thickness of cylinder head ... 104.35 mm (4.108 inch)Note: The flatness of the cylinder head should be within 0.15 mm (0.006 inch). The flatness should also be a maximum of 0.05 mm (0.002 inch) for any 150.00 mm (5.906 inch) span.