2006/03/27 Caterpillar

Caterpillar Products:

3500 Family Generator Sets and Power Modules

3500 Family Pumpers

G3500 Family Generator Sets and Power Modules

Engine: Commercial

3500 and 3500B Family All

G3500 Family All

ReferenceFor more information, refer to Engine News, SEBD9326, 01 October 2003, "The Cylinder Block Has Changed".

Description of Change: Anaerobic sealants replace the existing gasket for the flywheel housing to the block joint on 3500 Diesel Engines and 3500 Gas Engines. Hard washers have been added to the bolts.

Adaptable To: The sealants are adaptable to the flywheel housing to the block joint on all 3500 Diesel Engines and all 3500 Gas Engines.

The following part numbers replace the former gasket:

• 185-3984 Gasket Sealant

• 4C-5300 Gasket Sealant

Apply the Sealant

Use the applicable Disassembly and Assembly manual for the tools and for the procedure in order to remove the flywheel housing.

1. After removing the flywheel housing, clean the mating surface of the cylinder block and the mating surface of the flywheel housing. If necessary, use a gasket scraper and a solvent in order to remove any residual gasket material. Both mating surfaces must be clean, dry, and free of any oil before the anaerobic sealant is applied.

Show/hide table



Illustration 1	g01256259
Location for the sealant

2. Apply a 6 mm (0.250 inch) of 4C-5300 Gasket Sealant or 185-3984 Gasket Sealant to the mating surface of the flywheel housing. Refer to Illustration 1.

Use the applicable Disassembly and Assembly manual for the tools and for the procedure in order to install the flywheel housing. During assembly, use the hard washers that are listed in Table 1. Refer to the Specifications manual for the torque values.