- Engine:
- G3500 Series
Description of Change: A new integral seal is being used in the water lines groups on these gas engines. See Illustration 1. The former integral seal includes a rubber bead on the inside edge of an aluminum plate. See Illustration 2. The rubber bead could come loose from the plate. This could result in a coolant leak. The new integral seal includes a rubber bead on each side of a steel plate. See Illustration 3. When the new integral seal is installed, the rubber beads are trapped between the cylinder head and the riser tube flange. This helps prevent coolant leaks. The steel plate of the new integral seal is more compatible with the coolant that is used in cogeneration applications.
 | |
| Illustration 1 | g00758317 |
FRONT VIEW OF THE ENGINE This illustration shows the locations of the new 179-2960 Integral Seal (1) in a typical water lines group. | |
 | |
| Illustration 2 | g00758368 |
This illustration shows a former127-2176 Integral Seal . (W) Rubber Bead (X) Aluminum Plate | |
 | |
| Illustration 3 | g00758374 |
This illustration shows a new 179-2960 Integral Seal . (Y) Rubber Bead (Z) Steel Plate | |
Adaptable To: The new 179-2960 Integral Seal is a direct replacement for the former 127-2176 Integral Seal in the water line groups on these engines.