LINER 4H8625 - Caterpillar

Table 1
Required Tools
Part Number Part Name quantity
8T-0455 Liner Projection Tool Group 1
Clean the cylinder liner flange and the cylinder block surface. Remove any nicks on the top of the cylinder block.
Table 2
Required Components
Item Part Number Description Quantity per Each Cylinder
1 8T-4193 Bolt 6
2 2S-5658 Hard Washer 6
3 8F-1484 Washer 6
4 7K-1977 Washer 6
Illustration 1 g01721317
Location of the components
(1) Bolt
(2) Washer
(3) Washer
(4) Washer
The components should be assembled in the order that is shown in Illustration 1. 7K-1977 Washer (4) is made of a cotton fabric that is impregnated with resin. The washer will not damage the sealing surface of the cylinder block. Note: Inspect the washer before measuring the liner projection. Replace the washer if the washer is worn or damaged.
Evenly tighten bolts (1) to a torque of 14 N m (10 lb ft).
Illustration 2 g01721370
8T-0455 Liner Projection Tool Group
(5) Bolt
(6) Dial indicator
(7) Gauge body
(8) Gauge block
Loosen bolt (5) until dial indicator (6) can be moved. Place gauge body (7) and dial indicator (6) on the long side of gauge.
Slide dial indicator (6) into the correct position. When the point of the dial indicator contacts gauge block (8), the dial indicator is in the correct position. Slide the dial indicator until the needle of the gauge makes a quarter of a revolution clockwise. The needle should be in a vertical position. Tighten bolt (5) and zero the dial indicator.
Illustration 3 g01721372
Measure the liner projection.
(6) Dial indicator
(7) Gauge body
Place gauge body (7) on the plate for the cylinder block. The indicator point should be on the liner flange. Read the dial indicator in order to find the amount of liner projection. Check the projection at four locations (every 90 degrees) around each cylinder liner.
Table 3
Specifications
Liner Projection 0.06 to 0.18 mm ( 0.0024 to 0.0071 inch)
Maximum Variation in Each Liner 0.050 mm (0.0020 inch)
Maximum Average Variation Between Adjacent Liners 0.08 mm (0.0031 inch)
Maximum Variation Between All 6 Liners 0.100 mm (0.0040 inch)
If a liner does not meet the recommended cylinder liner projection specification, check the following parts:
The depth of the cylinder block bore should be 100.00 0.03 mm (3.937 0.001 inch).
The liner flange should be 100.12 0.03 mm (3.942 0.001 inch).If the dimensions for the liner flange do not match the specifications, replace the liner. Then repeat the liner projection measurements. If the dimensions for the depth of the cylinder block bore do not match the specifications, replace the cylinder block. Then repeat the liner projection measurements.