Connecting Rod | Caterpillar Engines Troubleshooting

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EL-740 Air Compressor Piston And Connecting Rod Disassembly

Piston Assembly (1) Compression rings. (2) Thrust button. (3) Piston rings. (4) Oil ring expander. (5) Oil ring. (6) Piston. (7) Connecting rod. 1. With a screwdriver remove the thrust buttons from the piston pins. On some EL-740 Air Compressors … Continue reading

04. August 2017 by sam
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EL-740 Air Compressor Piston And Connecting Rod Removal

1. Place the air compressor on its side. On flange mounted air compressors, remove the bottom cover plate. 2. Mark the connecting rods and connecting rod caps to ensure they are returned to the same connecting rod from which they … Continue reading

04. August 2017 by sam
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3100 HEUI Diesel Truck Engine Pistons, Rings And Connecting Rods

High output engines with high cylinder pressures require two piece articulated pistons. Refer to the parts book to obtain information about the type of pistons used in a specific engine. The two piece articulated piston consist of an alloy forged … Continue reading

24. July 2017 by sam
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3116 and 3126 Truck Engines Pistons and Connecting Rods – Install

Installation Procedure Illustration 1 g01027781 1.Install bolts (3) and the upper half of connecting rod bearing (2). Ensure that the bearing tab engages with the slot in connecting rod (1) . 2.Install the lower half of connecting rod bearing (2). … Continue reading

17. July 2017 by sam
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3116 and 3126 Truck Engines Pistons and Connecting Rods – Assemble

Assembly Procedure Illustration 1 g00610428 1.Check the clearance between the ends of piston rings (5). Refer to the Specifications Manual, “Pistons and Rings” topic. Note: The oil ring must be installed over the spring with the end gap 180 degrees … Continue reading

17. July 2017 by sam
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3116 and 3126 Truck Engines Pistons and Connecting Rods – Disassemble

Disassembly Procedure Start By: A.Remove the pistons and the connecting rods. Refer to Disassembly and Assembly, “Pistons and Connecting Rods – Remove”. 1.Use Tooling (B) to remove retaining ring (2). Remove piston pin (4) and separate piston (1) from connecting … Continue reading

17. July 2017 by sam
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3116 and 3126 Truck Engines Pistons and Connecting Rods – Remove

Removal Procedure Start By: A.Remove the cylinder head. Refer to Disassembly and Assembly, “Cylinder Head – Remove”. B.Remove the engine oil pump. Refer to Disassembly and Assembly, “Engine Oil Pump – Remove”. C.Remove the piston cooling jets. Refer to Disassembly … Continue reading

17. July 2017 by sam
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3116 and 3126 Truck Engines Connecting Rod

(1) Bore in bearing for piston pin (new) … 40.028 ± 0.008 mm (1.5759 ± 0.0003 in) To install bearing, rod may be heated at length (A) (do not use a torch) to … 175 to 260 °C (347 to … Continue reading

17. July 2017 by sam
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3116 and 3126 Truck Engines Connecting Rod And Main Bearing Journals

Connecting Rod Bearing Journals Clearance between bearing and journal (new) … 0.053 ± 0.155 mm (0.0021 ± 0.0061 in) Main Bearing Journals Clearance between bearing and journal (new) … 0.071 ± 0.173 mm (0.0029 ± 0.0068 in)

17. July 2017 by sam
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3116 and 3126 Truck Engines Connecting Rod And Main Bearing Journals

Connecting Rod Bearing Journals Clearance between bearing and journal (new) … 0.053 ± 0.155 mm (0.0021 ± 0.0061 in) Main Bearing Journals Clearance between bearing and journal (new) … 0.071 ± 0.173 mm (0.0029 ± 0.0068 in)

16. July 2017 by sam
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