DIRECT FUEL INJECTION
Page 3B-51
90-888438 JUNE 2002
NOTE: If cylinder head is going to be replaced, remove cup washers from each direct in-
jector port by prying out with a flat tip screwdriver. Reinstall washers with retainers into
new cylinder head. Washers provide tension between direct injectors, cylinder head and
fuel rails.
b
a
57984
a-Cup Washer
b-Retainer
Fuel Rail and Direct Injector Installation
1. Use Teflon Ring Sizing Tool (91-851980-1) to compress new teflon sealing rings prior
to installation of injector into cylinder head.
2. Carefully slide fuel rail over mounting studs and onto direct injectors.
IMPORTANT: ALL fuel and air hoses attached to the fuel rails MUST be secured with
stainless steel hose clamps.
3. Secure each fuel rail with 2 nuts. Torque nuts to 33 lb. ft. (44 Nm).
4. Reinstall direct injector harness connectors.
00029
a
a
b
a-Nuts [Torque to 33 lb.ft. (44 Nm)]
b-Direct Injector Harness Connectors (6) (3 each fuel rail)
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