( TL19E20A14680263041LBAT00 )

Cylinder Head Valve Seat Reconditioning

1. After resurfacing the seat, inspect it for even valve seating. Apply Prussian Blue compound (A) to the valve face. Insert the valve in its original location in the head, then lift it and snap it closed against the seat several times.

1. The actual valve seating surface (B), as shown by the shaded area, should be centered on the seat.
   - If it is too high (closer to the valve stem), you must make a second cut with the 60 ° cutter to move it down, then one more cut with the 45 ° cutter to restore seat width.
   - If it is too low (closer to the valve edge), you must make a second cut with the 30 ° cutter to move it up, then one more cut with the 45 ° cutter to restore seat width.
   NOTE: The final cut should always be made with the 45 ° cutter.