Determining the Correct Part Numbers for Main Bearings and Cylinder Head Gaskets {1124, 1201, 1203} Caterpillar


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Determining the Correct Part Numbers for Main Bearings and Cylinder Head Gaskets {1124, 1201, 1203} [REHS1162]
BASIC ENGINE
CYLINDER BLOCK GP
Determining the Correct Part Numbers for Main Bearings and Cylinder Head Gaskets {1124, 1201, 1203}
1.1. Introduction
2.1. Identification of Remanufactured 3116 Cylinder Blocks
3.1. Part Numbers For Main Bearings
4.1. Part Numbers For Cylinder Head Gaskets
Engine
3116
3126 and 3126B

Introduction

Table 1
Revision History 
Revision  Summary of Changes 
04  Added new paragraph to the end of this Special Instruction. 

This Special Instruction will help to identify remanufactured Type 1 3116 cylinder blocks and remanufactured Type 2 3116 cylinder blocks. This Special Instruction will also help to identify the main bearings, and the head gaskets that are used with 3116 and 3126 remanufactured engine blocks.

Identification of Remanufactured 3116 Cylinder Blocks



Illustration 1g00821902

Illustration 1 compares Type 1 3116 cylinder blocks with Type 2 3116 cylinder blocks. Cylinder block (A) is a Type 1 cylinder block. The main bearing saddles have lubrication grooves. Cylinder block (B) is a Type 2 cylinder block. The main bearing saddles do not have lubrication grooves.

Part Numbers For Main Bearings

Table 2
Type 1 3116 Cylinder Blocks
Part Numbers for Type 1 Cylinder Blocks with Grooved Main Bearing Saddles 
Description  Qty  Part Numbers for Standard Size Bearings  Part Numbers for Oversized/Undersized Bearings  Size 
Thrust Bearing  212-4893  Standard 
- 229-5155  0.50 mm (0.020 inch) Oversize 
- 229-5156  0.50 mm (0.020 inch) Undersize
0.50 mm (0.020 inch) Oversize 
- 229-5153  0.25 mm (0.010 inch) Undersize 
- 229-5154  0.50 mm (0.020 inch) Undersize 
Main Bearing  107-7708  Standard 
- 145-0168  0.50 mm (0.020 inch) Oversize 
- 145-0170  0.50 mm (0.020 inch) Undersize
0.50 mm (0.020 inch)Oversize 
- 145-0162  0.25 mm (0.010 inch) Undersize 
- 145-0164  0.50 mm (0.020 inch) Undersize 
Main Bearing  101-1530  Standard 
- 145-0169  0.50 mm (0.020 inch) Oversize 
- 145-0171  0.50 mm (0.020 inch) Undersize
0.50 mm (0.020 inch) Oversize 
- 145-0163  0.25 mm (0.010 inch) Undersize 
- 145-0165  0.50 mm (0.020 inch) Undersize 

Table 3
Type 2 3116 Cylinder Blocks
Part Numbers for Cylinder Blocks without Grooved Main Bearing Saddles 
Description  Qty  Part Numbers for Standard Size Bearings  Part Numbers for Oversize/Undersize Bearings  Size 
Thrust Bearing  212-4893  Standard 
- 229-5155  0.50 mm (0.020 inch) Oversize 
- 229-5156  0.50 mm (0.020 inch) Undersize
0.50 mm (0.020 inch) Oversize 
- 229-5153  0.25 mm (0.010 inch) Undersize 
- 229-5154  0.50 mm (0.020 inch) Undersize 
Main Bearing  107-7708  Standard 
- 145-0168  0.50 mm (0.020 inch) Oversize 
- 145-0170  0.50 mm (0.020 inch) Undersize
0.50 mm (0.020 inch) Oversize 
- 145-0162  0.25 mm (0.010 inch) Undersize 
- 145-0164  0.50 mm (0.020 inch) Undersize 

Table 4
3126 Cylinder Block
Replacement Part Numbers for Main Bearings 
Description  Qty  Part Numbers for Standard Size Bearings  Part Numbers for Oversize/Undersize Bearings  Size 
Thrust Bearing  229-5153  Standard 
- 229-5155  0.50 mm (0.020 inch) Oversize 
- 229-5156  0.50 mm (0.020 inch) Undersize
0.50 mm (0.020 inch) Oversize 
- 229-5154  0.50 mm (0.020 inch) Undersize 
Main Bearing  107-7708  Standard 
- 145-0168  0.50 mm (0.020 inch) Oversize 
- 145-0170  0.50 mm (0.020 inch) Undersize
0.50 mm (0.020 inch)
Oversize 
- 145-0164  0.50 mm (0.020 inch) Undersize 

Part Numbers For Cylinder Head Gaskets

Table 5
Cylinder Head Gaskets 
Engine Model  Part Number for Standard Cylinder Head Gasket  Part Number for Thick Cylinder Head Gasket 
3116 Without Cylinder Sleeves  107-7832
or 205-1293 
175-3234 or 119-2948 
3116 With Cylinder Sleeves  205-1293  119-2948 
3126  282-2464  282-2470 
3126B  282-2468  282-2474 
3126E  282-2468  282-2474 
C7  282-2468  282-2474 


Illustration 2g00619401
"TG" is stamped on the top surface of the cylinder block.


Illustration 3g00619437
Location of Remanufacture Information Tag

"TG" will be stamped on the top surface of a remanufactured cylinder block that has been machined by AVSpare to a dimension between 321.50 to 321.75 mm (12.657 to 12.667). A AVSpare remanufactured cylinder block that is machined to this dimension will have "TG" on the remanufacture information tag. These remanufactured cylinder blocks require a thick cylinder head gasket.

Some blocks not machined at Cat Reman will not have "TG" stamped on the deck to help with head gasket selection. Using piston projection is the next best method to determine if an engine requires a thicker head gasket on an already assembled short block. Piston projection is 0.61 mm (0.024 inch) to 0.66 mm (0.026 inch) nominally on these engines. Maximum piston projection is 1.39 mm (0.055 inch). If piston projection is over 0.91 mm (0.036 inch) choosing the correct thick head gasket from table 5 above is required to prevent piston to valve contact.

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