Mack MP7 - Page 286

REPAIR INSTRUCTIONS, PART 2
Page 275
400
Figure 400 — Fuel Gallery Sealing Rings
14. Install the injector bore sealing tool
(J 42885-25) to protect the fuel passage
area and prevent debris from entering. Use
the unit injector hold down bolt to secure the
tool in the cylinder head.
15. Using the injector bore cleaning kit, clean
the copper sleeve seat of the cylinder head.
The injector bore sealing tool must be used to
prevent dirt from entering the fuel passage.
401
Figure 401 — Cleaning Copper Sleeve Seat
16. Using the brush, clean the cylinder head
injector bore walls for the copper sleeve.
402
Figure 402 — Cleaning Copper Sleeve Bore Walls
The injector bore sealing tool must be used to
prevent debris from entering the fuel passage.