SFWR GP-A4010 3553624 - Caterpillar

Table 8
Valve Seat Insert    
Part Number     Description    
6V-4198     Grinder Group    
6V-4197     Grinder Base Group    
6V-4801     Dressing Stone    
6V-4802     Grinding Wheel    
6V-7047     Hydraulic Cylinder    
1U-5230     Hand Pump    
9U-5099     Seat Puller Group    
8T-2674     Standard Insert Seat Driver    
-     Hydraulic Press    
4C-8769     Water Cooled Insert Seat Driver    Removal
In order to remove the valve seat insert on some earlier cylinder heads, a relief must be ground at the bottom of the insert. The relief should be ground in the area where the insert contacts the head casting. This relief will allow the 9U-5099 Seat Puller Group to engage the bottom edge of the insert.
Illustration 45 g01944673
Grinding the relief in the head casting for the 9U-5099 Seat Puller Group (17) 6V-4198 Grinder group (18) 6V-4802 Grinding wheel
Illustration 46 g01944700
(C) 4.0 mm (0.16 inch) (D) 83.0 mm (3.27 inch)Remove the valve seat insert from the head casting.Note: Heat may be required to remove the water-cooled exhaust valve seat insert. Applying a weld bead to the inside diameter of the insert will also assist in removal.
Illustration 47 g01944749
(11) Puller assembly (19) Seat puller groupInstallation
Inspect the counterbores of valve seat inserts before installing the inserts. The counterbores should be clean. The counterbores should be free of raised burrs that are caused by the insert removal tool. The bottom of the counterbore must be flat in order for the insert to make 360 degrees of contact.
Illustration 48 g02729051
(A) Heavy fuel insert (B) Standard InsertCaterpillar currently has two types of inserts. The water-cooled insert is used in exhaust ports in heavy fuel applications. The water-cooled inserts require a special counterbore in the cylinder head. The standard insert is used in inlet ports for all applications and in exhaust ports of distillate fuel applications.Installing Water Cooled Inserts
Note: This method is also applicable to a standard insert.
Make