CYL GP- 2828549 - Caterpillar

Illustration 1 g00517501
Note: There are currently two types of cylinder head bolts that are being used. The first type is a full shank design that is shown in Illustration 2. The second type is a reduced shank design that is shown in Illustration 3.
Illustration 2 g00661561
Cylinder head bolt with full shank designDimension (A) for the full shank design is the following amount: 15.73 mm (0.619 inch)
Tighten the cylinder head bolts with the full shank design according to the following procedure:
Tighten bolt (1) through bolt (26) in a numerical sequence to a torque of 150 15 N m (110 11 lb ft).
Tighten bolt (1) through bolt (26) again in a numerical sequence to a torque of 150 15 N m (110 11 lb ft).
Place an index mark on bolt (1) through bolt (26). Rotate bolt (1) through bolt (26) in a numerical sequence for an additional 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 to a torque of 150 15 N m (110 11 lb ft).
Tighten bolt (1) through bolt (26) again in a numerical sequence to a torque of 150 15 N m (110 11 lb ft).
Place an index mark on bolt (1) through bolt (26). Rotate bolt (1) through bolt (26) in a numerical sequence for an additional 90 degrees (1/4 turn).
Tighten bolt (27) through bolt (33) in a numerical sequence to a torque of 28 7 N m (20 5 lb ft).
Illustration 3 g00661562
Cylinder head bolt with reduced shank designDimension (B) for the reduced shank design is the following amount: 14.58 mm (0.574 inch)
Tighten the cylinder head bolts with the reduced shank design according to the following procedure:
Tighten bolt (1) through bolt (26) in a numerical sequence to a torque of 160 15 N m (120 11 lb ft).
Tighten bolt (1) through bolt (26) again in a numerical sequence to a torque of 160 15 N m (120 11 lb ft).
Place an index mark on bolt (1) through bolt (26). Rotate bolt (1) through bolt (26) in a numerical sequence for an additional 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 to a torque of 160 15 N m (120 11 lb ft).
Tighten bolt (1) through bolt (26) again in a numerical sequence to a torque of 160 15 N m (120 11 lb ft).
Place an index mark on bolt (1) through bolt (26). Rotate bolt (1) through bolt (26) in a numerical sequence for an additional 90 degrees (1/4 turn).
Tighten bolt (27) through bolt (33) in a numerical sequence to a torque of 28 7 N m (20 5 lb ft).