CLEANING, INSPECTION, AND REPAIR CONTINUED
Injector Nozzle Sleeves
1. If an injector nozzle sleeve (Figure 17, Item 2) is to be replaced proceed as follows:
Never remove a nozzle sleeve with a chisel and punch as scoring and grooving of
machined seating surfaces will result. Even if these surfaces are dressed with a stone,
only surface burrs are removed; but grooves remain, leaving potential leaks of coolant into
a. Remove valve bridge guides to allow for installation of sleeve puller.
Puller PL T-507-3 is a pre-cup puller used on all pre-cup type diesel engines and is used
in the same manner.
b. Install Puller No. PLT-507-3 and remove defective sleeve(s).
Clean sleeve seating surfaces in cylinder head (Figure 17, Item 1) thoroughly.
Figure 17. Removing Injector Sleeve.