2011/04/08 Caterpillar

Engine:

C15 (S/N: HAZ1-UP)

C18 (S/N: BDN1-UP)

Generator Set:

C18 MARINE GS (S/N: GBM1-UP; GEN1-UP; MGS1-UP)

Industrial Engine:

C-15 (S/N: BEM1-UP)

C15 (S/N: JRE1-UP)

C18 (S/N: JDA1-UP; NBB1-UP; WJH1-UP)

Marine Engine:

C18 (S/N: WKB1-UP; GES1-UP)

C18 (S/N: T2P1-UP)

Petroleum Engine:

C15 (S/N: JDK1-UP)

C18 (S/N: WJW1-UP)

A new oil pan gasket is available for certain C15 and C18 tier 3 engines. The new gaskets is a four piece gasket with interlocking joints. Also, the new gasket incorporates a rubber bead around the outside of the gasket to help ensure that no oil leakage will occur.

The change is adaptable back to the first production of the engine. The 353-5065 Oil Pan Gasket can replace the current oil pan gasket.

Procedure for the Installation of the New Oil Pan Gasket

1. Drain the engine oil into a suitable container.

2. Remove the bolts with washers that secure the engine oil pan to the engine block.

3. Remove the engine oil pan.

4. Remove the suction tube, bracket, and discharge tube.

5. Remove the plate with both of the gaskets that are located on both sides of the plate.

6. Clean the sealing surface of the oil pan, plate, and engine block thoroughly.

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Illustration 1	g02476831
Location of the adhesive on the plate (1) Plate

7. Apply 1Y-3904 Adhesive onto the side of the plate that will contact the engine block. Refer to Illustration 1 for the proper location of the adhesive.

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Illustration 2	g02476897
Location of sealant at the joints of the gasket (2) 141-5831 Silicone Sealant

8. Install one of the new gaskets onto the side of the plate that will contact the engine block. Apply 141-5831 Silicone Sealant at the puzzle joints of the new gasket. Refer to Illustration 2 for the proper location of the sealant.

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Illustration 3	g02477451
(A) Location of T-joints

9. Apply a 3 mm (0.11811 inch) to 5 mm (0.19685 inch) bead of 141-5831 Silicone Sealant at the T-joints of the engine block. Refer to Illustration 4 for the proper location of the sealant.

   Note: All of the joints must be assembled within 10 minutes of sealant application. After 10 minutes the sealant will begin to harden, and the performance of the sealant is compromised.

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Illustration 4	g02477309
(3) 1A-2029 Bolt (4) 5M-2894 Hard Washer

10. Install plate with gasket onto the engine block. Use location 1 and 2, 3 and 4, or 5 and 6 with bolts (3) with washers (4) for installation.

11. Install the suction tube, brackets, and discharge tube.

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Illustration 5	g02477177
Typical example Location of sealant at the joints of the gasket

12. Install the new gasket onto the engine oil pan.

13. Install the engine oil pan with the new gasket onto the engine block. Use the bolts and the washers that were removed in Step 2.

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Illustration 6	g02477317

14. Tighten the bolts 1 through 40 to the following torque: 40 ± 5 N·m (30 ± 4 lb ft). Refer to Illustration 6 for the proper tightening sequence.

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Illustration 7	g02477373

15. Retighten bolts 1 through 40 to the following torque: 47 ± 5 N·m (35 ± 4 lb ft). Refer to Illustration 7 for the proper tightening sequence.

16. Fill the engine with engine oil. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for more information.