SEAL 8F9538 - Caterpillar

Illustration 1 g03121997
Front view
Illustration 2 g03121998
Bolt tightening sequence
Table 1
Specification for 115-5159 Cylinder Block Gp
Item Qty Part Specification Description
A 32 8T-0099 Dowel Extension from top face of the cylinder block is 21.0 0.5 mm (0.83 0.20 inch).
B 16 197-7008 Dowel Extension from top face of the cylinder block is 21.0 0.5 mm (0.83 0.02 inch).
1 2 4W-4813 Plug Torque to 100 15 N m (74 11 lb ft).
C - - New dimension from centerline of crankshaft bearing bore to the top of the block is 586.00 mm (23.071 inch).
2 9 223-1696 Crankshaft Bearing Cap Width (D) of main bearing cap is 340.030 0.015 mm (13.3870 0.0006 inch).
Width of cylinder block for main bearing cap is 339.985 0.015 mm (13.3852 0.0006 inch).
E - - New dimension from centerline of crankshaft bearing bore to bottom of block (pan rails) is 230 mm (9.1 inch).
3 36 7X-7925 Bolt Use the following procedure in order to tighten the bolts (3):
1. Install main bearing caps with the part number and FRONT toward the front of the block. Each cap has a number. Each cap must be installed in the same position as the correct number on the side of the cylinder block pan rail.
2. Before assembly, apply clean engine oil to the threads of the bolts.
3. Tighten the bolt in the numerical sequence as shown in Illustration 2 to 190 14 N m (140 10 lb ft).
4. Again, tighten the bolt in the numerical sequence as shown in Illustration 2 to an angle of 180 5 degrees.
Illustration 3 g03212747
Right side view
Table 2
Item Qty Part Specification Description
F 3 7N-2047 Dowel Extension of dowel from the surface of the cylinder block is 6.0 0.5 mm (0.24 0.02 inch).
G 2 4N-0683 Dowel Extension of dowel from the surface of the cylinder block is 19.0 0.5 mm (0.75 0.02 inch).
H 2 7N-2044 Dowel Extension of dowel from the surface of the cylinder block is 40.0 0.5 mm (1.57 0.02 inch).
Illustration 4 g03122036
Front view
Table 3
Item Qty Part Specification Description
4 16 211-7826 Cylinder Block Liner For the correct method of determining height of the liner, refer to Testing and Adjusting, "Cylinder Liner Projection".
J - - Bore in the block for the camshaft bearings is 98.000 0.020 mm (3.8583 0.0008 inch).
K - - Oil holes must be positioned from horizontal at angle of 20 5 degrees.
All centerlines through oil holes in the camshaft bearings and bearing junctions must be in the position that is shown for each side of the cylinder block.
5 48 7N-2046 O-Ring Seal Before assembly, cover seals with either P-80 Rubber Lubricant Emulsion or liquid soap.
L - - Bore in the block for the main bearings is 169.742 0.020 mm (6.6827 0.0008 inch).