W 250 Pickup V8-318 5.2L (1986)
VECI Update Label
1
4275084
FIGURE 13
REPAIR PROCEDURE
A.
Remove primary main jets and install new jets #247, PN 4271983 (Figure 13). Turn vacuum power valve one turn CCW (lean).
B.
Reset choke specifications as follows:
Choke Vacuum Kick
.150"
Choke Unloader
.280"
Fast Idle Cam Position
.070"
C.
Set new idle specifications as follows:
Propane Speed
770 RPM
A/C Kicker RPM
850 RPM (with compressor
clutch disabled)
Fast Idle
1600 RPM (Step 2 of the cam)
D.
Type "This vehicle has been modified with Altitude Emissions Package PN 4411986" and the appropriate new specifications on the VECI Update
Label.
E.
Affix VECI Update Label, PN 4275084, near original VECI label.
5.2L-2V CALIFORNIA
ALTITUDE EMISSIONS PACKAGE PN 4411987
Contains the following parts:
PART
ITEM
QTY.
NUMBER
Carburetor
1
4324632
EGR Valve
1
4287658
ESA Module
1
4419356
VECI Update Label
1
4275084
REPAIR PROCEDURE