Page 214
REPAIR INSTRUCTIONS, PART 1
Unit Injector Installation
[221 GP]
280
Figure 280 — Unit Injector Installation
Injectors must always be fitted with new O-rings,
new sealing washers and new injector yoke
screws.
If a unit injector is reused, it must be installed into
the bore from which it was removed.
1. If new injectors are being installed, unpack
them one at a time. Make note of the trim
number of each injector and the cylinder
number that each injector is being installed.
The trim numbers must be programmed into the
EECU using the VCADS or PTT diagnostic tool.
2. Remove the unit injector bore sealing plug,
9998251.
281
Figure 281 — Unit Injector Bore Sealing Plug
3. If not previously performed, install protective
sleeve, J 42885-25, and clean the unit
injector copper sleeve with the appropriate
brush and extension.
282
Figure 282 — Unit Injector Copper Sleeve Cleaning
After cleaning the copper sleeve, carefully inspect
the inside surface of the sleeve, especially the
bottom surface where the injector seal is located.
Any remaining contamination is unacceptable
and must be removed. Also, if there is any
indication of a discrepancy that raises concern
about suitability of the sleeve for reuse, replace it
with a new sleeve.
1. Injector Hold Down Yoke
and Screw
2. Unit Injector
3. Harness Connector
1. Unit Injector Bore Sealing
Plug, 9998251
2. Unit Injector Bore
To Next Page
Loading...
