BONNET-VALVE 2W3409 - Caterpillar

3126 Industrial And Marine EnginesReference: Engine News; September 1994; "Use Of 4C-4377 Stress Plate Group In 3114 And 3116 Engines".Reference: Guideline For Reusable Parts And Salvage Operations; SEBF8268; "Installing A 107-7604 Cylinder Sleeve In 3126 Engines".Description of Change: Cylinder sleeves are available for reconditioning the cylinder blocks in the above engines.Adaptable To: The 107-7604 Cylinder Sleeves are available for salvage operations on the cylinder block in the above engines, adaptable back to first production. The 107-7604 Cylinder Sleeve can be used when it is determined that the existing cylinder wall(s) in the cylinder block are not reusable. Wear, pin holes, cracks, or scoring may indicate the need to use the 107-7604 Cylinder Sleeve.
1. Inspect the cylinder block carefully to be sure it is still usable.2. If the 107-7604 Cylinder Sleeve(s) are to be installed, refer to the Guideline For Reusable Parts And Salvage Operations listed above. In order to accurately measure the dimension of a cylinder, the 142-2285 Cylinder Head Stress Plate and a STANDARD thickness head gasket MUST be installed over each cylinder that is measured.