Idle Set Procedure - Manual Revisions
83ford11Article No. 83-14-21
CARBURETOR (5.8L) - IDLE SET PROCEDURE REVISIONS AND ADDITIONS TO THE 1983 ENGINE DIAGNOSTICS MANUAL
LIGHT TRUCKS 1983 F SERIES AND BRONCO
The following procedure revisions/additions should be placed in Section 4, pages 4-78 through 4-84 of the 1983 Car/Truck Emission Diagnosis, Engine Electronics Manual.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: "INFORMATION ONLY"
Idle Speed Setting Procedures
TRUCK, UNDER 8500 GVW
5.8L (W) Engine with 2150-2V or 7200-VV (All Calibrations except 1-63T-R15, 1-64T-R15/R16, 2-63Y-R14 and 2-64Y-R14/R16). Fast Idle RPM
Fast Idle RPM
5.8L(W) 5.8L(W)
Instructions w/2150-2V w/7200-VV
1. Place the transmission in Neutral or
Park. x x
2. Bring the engine to normal operating temperature. x x
3. Disconnect purge hose on canister side of evaporator purge solenoid. Check to ensure that purge vacuum is present (solenoid has opened - will require a 3- to 5-minute wait after starting engine) followed by a short time at part throttle. Reconnect purge hose. x
4. Disconnect the vacuum hose at the
EGR and purge valves and plug. x x
5. Place the fast idle adjustment mechanism on specified step of the fast idle cam (Fig. 1 or 2):
^ Top step. x
^ Second step. x
6. Check/adjust fast idle rpm to specification. Recheck for repeatability. x x
7. Remove the plugs from the EGR and purge vacuum hoses and reconnect. x x
Idle Speed Setting Procedures
TRUCK, UNDER 8500 GVW
5.8L (W) Engine with 2150-2V or 7200-VV (All calibrations except 1-63T-R15, 1-64T-R15/R16, 2-63Y-R14 and 2-64Y-R14/R16).
Curb Idle RPM
5.8L(W) 5.8L(W)
w/2150-2V w/7200-VV
Instructions A/T and M/T A/T M/T
1. Place the transmission in Neutral or Park. x x x
2. Bring the engine to normal operating temperature. x x x
3. Disconnect purge hose on canister side of evaporator purge solenoid. Check to ensure that purge vacuum is present (solenoid has opened - will require 3- to 5-minute wait after starting engine followed by a short time at part-throttle). Reconnect purge hose. x x
4. Disconnect and plug the vacuum hose to the VOTM kicker. x x
5. Place the transmission in specified position. x x x
6. Check/adjust curb idle rpm - if adjustment is required:
^ Use the curb idle speed screw (Fig. 3 or 4). x x
^ Use the saddle bracket adjusting screw (ensure curb idle speed screw is not touching throttle shaft lever)
(Fig. 5). x
7. Place the transmission in Neutral or Park. Rev the engine momentarily. Place the transmission in specified position and recheck curb idle rpm.
Readjust if required. x x x
8. Disconnect EEC harness from processor assembly, and install Rotunda EEC tester. x x
9. Check/adjust throttle position sensor (TPS). x x
Idle Speed Setting Procedures
TRUCK, UNDER 8500 GVW (Continued)
5.8L (W) Engine with 2150-2V or 7200-VV (All calibrations except 1-63T-R15, 1-64T-R15/R16, 2-63Y-R14 and 2-64Y-R14/R16).
Curb Idle RPM
5.8L (W) 5.8L (W)
w/2150-2V w/7200-VV
A/T and M/T A/T M/T
9. Remove the plug from the vacuum hose to the VOTM kicker and reconnect. x
10. Apply a slight pressure on top of the nylon not located on the accelerator pump to take up the linkage clearance. x x
11. Turn the nylon nut on the accelerator pump rod clockwise until a .010 +/- .005 clearance is obtained between the top of the accelerator pump and the pump lever. x x
12. Turn the accelerator pump rod nut one turn counterclockwise to set the lever lash preload. x x
13. Trigger EEC-III System Self-Test. NOTE: If test result is not a passing Service Code, perform additional steps; corrective action indicated. x x
14. Remove tester and reconnect processor assembly to
EEC harness. x x
Idle Speed Setting Procedures
TRUCK, UNDER 8500 GVW
5.8L (W) Engine with 2150-2V or 7200-VV (All calibrations except 1-63T-R15, 1-64T-R15/R16, 2-63Y-R14 and 2-64Y-R14/R16).
Engine VOTM/KICKER RPM SET
5.8L(W) 5.8L(W)
w/2150-2V w/7200-VV
Instructions A/T and M/T A/T M/T
1. Bring the engine to normal operating temperature. x N x
O
2. Place A/C-Heat selector to maximum A cooling, blower switch in High D
position. x J x
U S
3. Disconnect A/C clutch wire. x T x M E
4. Place the transmission in specified N position. x T x
R
5. Check/adjust A/C On rpm to E specification: Q U
^ Loosen locknut on VOTM housing, I rotate VOTM to specified rpm, R
and tighten locknut (Fig. 4).
E x
^ Use the saddle bracket D adjusting screw (Fig. 5). x
6. Reconnect A/C switch wire. x x
Figure 15:
Idle Speed Setting Procedures
TRUCK, UNDER 8500 GVW
5.8L (W) Engine with 7200-VV and Calibrations 1-63T-R15, 1-64T-R15/R16 2-63Y-R14, 2-64Y-R14/R16 only
Fast Idle RPM
Instructions All Above Calibrations
1. Place the transmission in Neutral or Park.
Set parking brake and block wheels. x
2. Bring the engine to normal operating temperature. x
3. Turn off engine, then restart. x
4. Place the fast idle adjustment mechanism on second step of the fast idle cam (Fig. 1). x
5. Check/adjust fast idle RPM to specification (Fig. 1). Recheck for repeatability. Adjustment must occur within 120 seconds of hot restart. If speed is not set within 120 seconds, repeat procedure for
Step 3. x
Idle Speed Setting Procedures
TRUCK, UNDER 8500 GVW
5.8L (W) Engine with 7200-VV and Calibrations 1-63T-R15, 1-64T-R15/R16, 2-63Y-R14, 2-64Y-R14/R16 only
Engine VOTM RPM Set
Instructions All Above Calibrations
1. Place the transmission in Neutral or Park.
Set parking brake and block wheels. x
2. Bring the engine to normal operating temperature. x
3. Turn off engine. x
4. Disconnect and plug VOTM vacuum hose and
install vacuum hose from a manifold
vacuum source to VOTM. x
5. Restart engine. x
6. Check/adjust VOTM RPM to specification
using the VOTM saddle bracket adjusting
screw (Fig. 2). Adjustment must occur
within 120 seconds of hot restart.
If speed is not set within 120 seconds,
repeat procedure from Step 5. x
7. Remove manifold vacuum source from
VOTM and reconnect VOTM vacuum hose. x
Idle Speed Setting Procedures
TRUCK, UNDER 8500 GVW
5.8L (W) Engine with 7200-VV and Calibrations 1-63T-R15, 1-64T-R15/R16, 2-63Y-R14, 2-64Y-R14/R16 only
Curb Idle RPM
NOTE: VOTM adjustment must be made prior to setting curb idle RPM.
Instructions All Above Calibrations
1. Place the transmission in Neutral or Park.
Set parking brake and block wheels. x
2. Bring the engine to normal operating temperature. x
3. Disconnect and plug the vacuum hose to the
VOTM kicker. x
4. Turn off engine, then restart. x
5. Check/adjust curb idle RPM - if adjustment
is required use hex rod on back of throttle
solenoid (Fig. 2). Adjustment must be made
within 120 seconds of hot restart. If speed
is not set within 1 20 seconds, repeat
procedure from Step 4. x
6. Remove the plug from the vacuum hose
to the VOTM and reconnect to VOTM. x
7. Apply a slight pressure on top of the
nylon nut located on the accelerator
pump to take up the linkage clearance. x
8. Turn the nylon nut on the accelerator
pump rod clockwise until a .010 +/- .005
clearance is obtained between the top
of the accelerator pump and the pump lever. x
9. Turn the accelerator pump rod nut one
turn counterclockwise to set the lever lash preload. x