3508B Engine for Caterpillar Built Machines Cylinder Head Caterpillar


Cylinder Head
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3508B Engine for Caterpillar Built Machines [RENR1308]
BASIC ENGINE
CYLINDER HEAD GP
3508B Engine for Caterpillar Built Machines Cylinder Head
3508B Engine for Caterpillar Built Machines Cylinder Head Valves


Illustration 1g06341337

Table 1
Specifications for 7E-8758 Cylinder Head Gp, 203-2169 Cylinder Head Gp, 203-2170 Cylinder Head Gp, 242-5326 Cylinder Head As and 350-5202 Cylinder Head Gp 
Item  Qty  Part  Specification Description 
130-2607 Valve Seat Insert  During installation, shrink the valve seat insert with reduced temperature (Reference temperature: −60° C (−76° F)) and press the insert into the cylinder head counterbore. 
130-2608 Valve Seat Insert  During installation, shrink the valve seat insert with reduced temperature (Reference temperature: −60° C (−76° F)) and press the insert into the cylinder head counterbore. 
3B-0645 Cup Plug  Before assembly, apply high strength or high temperature Anaerobic Flange sealant to the bores. 
3B-0623 Cup Plug  Before assembly, apply high strength or high temperature Anaerobic Flange sealant to the bores. 
3B-0623 Cup Plug  Before assembly, apply high strength or high temperature Anaerobic Flange sealant to the bores. Installation depth (E) is 1.0 ± 0.5 mm (0.04 ± 0.02 inch) 
3B-0623 Cup Plug  Before assembly, apply high strength or high temperature Anaerobic Flange sealant to the bores. Installation depth (D) is 9.0 ± 0.5 mm (0.35 ± 0.02 inch) 


Illustration 2g06341342

Table 2
Bolt Tightening Procedure with the 110-6991 Cylinder Head Gasket 
Item  Qty  Part  Specification Description 
Note: Bolt Tightening Procedure with the 110-6991 Cylinder Head Gasket (Cellulose) and 110-6994 Spacer Plate (Aluminum) or 362-9677 Spacer Plate (Aluminum). 

131-0420 Cylinder Head Fastener Gp
 
Use the following procedure in order to tighten the bolts for the cylinder head: Refer to Illustration 2 for bolt tightening sequence.

1. Before assembly, apply clean engine oil to the bolt threads.
2. Tighten bolt 1 through 8 in the numerical sequence to 30 ± 5 N·m (22 ± 4 lb ft).
3. Again, retighten bolts 1 through 8 in the numerical sequence to 200 ± 15 N·m (148 ± 11 lb ft).
4. Again, retighten bolts 1 through 8 in numerical sequence to 200 ± 15 N·m (148 ± 11 lb ft).
5. Turn bolt 1 through 8 in numerical sequence to an angle of 180 ± 5 degrees.
Note: Tighten bolts 9 only after bolts 1 through 8 have been turned 180 ± 5 degrees.
6. Tighten bolts (9) to 55 ± 10 N·m (41 ± 7 lb ft).
 

131-0421 Cylinder Head Fastener Gp
 

5B-0213 Bolt
 


Illustration 3g06341366

Table 3
Bolt Tightening Procedure with the 362-8264 Cylinder Head Gasket 
Item  Qty  Part  Specification Description 
Note: Bolt Tightening Procedure with the 362-8264 Cylinder Head Gasket (MLS) and 519-7297 Spacer Plate (Iron).
Note: Refer to Disassembly and assembly manual for the alternate tightening procedure of cylinder head using 362-8264 Cylinder Head Gasket (MLS) with 110-6994 Spacer Plate (Aluminum) or 362-9677 Spacer Plate (Aluminum). 

131-0420 Cylinder Head Fastener Gp

 
Use the following procedure in order to tighten the bolts for the cylinder head: Refer to Illustration 3 for bolt tightening sequence.

1. Before assembly, apply clean engine oil to the bolt threads.
2. Tighten bolt 1 through 8 in the numerical sequence to 30 ± 5 N·m (22 ± 4 lb ft).
3. Again, retighten bolts 1 through 8 in the numerical sequence to 145 ± 15 N·m (107 ± 11 lb ft).
4. Again, retighten bolts 1 through 8 in the numerical sequence to 145 ± 15 N·m (107 ± 11 lb ft).
5. Turn bolts 1 through 8 in the numerical sequence to an angle of 180 ± 5 degrees.
Note: Tighten bolts 9 only after bolts 1 through 8 have been given the final torque.
7. Tighten bolts 9 to 55 ± 10 N·m (40 ± 7 lb ft).
 

131-0421 Cylinder Head Fastener Gp

 

5B-0213 Bolt
 

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