LN7 L4-098 1.6L VIN 4 2-bbl (1982)
instantaneous change in RPM upward for Dura-Spark II, downward for TFI, is detected, (misfires) replace the distributor rotor.
5.
Using rotor E3ZE-12200-BA replace the distributor rotor. No grease is required on the multi-point rotor.
6.
Determine if the above replacement has corrected the concern. If not, continue to Step #7.
7.
Repeat Step #4. If concern is still present, replace the distributor.
8.
Using a distributor E2EZ-12127-P (TFI) or E2EZ- 12127-R (Dura-Spark II), replace current distributor and set initial timing to 12~ BTDC. Verify
and/or readjust curb idle and other rated speeds to specifications called out on the Emission Decal.
9.
Verify that original concern has been taken care of to customer satisfaction.
Obtain an Authorized Modifications decal and list the date, dealer number and summary of alterations performed. Select a prominent place adjacent to
the Vehicle Emission Control Information decal suitable for installing the Authorized Modifications decal. Clean the area, install the decal and cover it
with a clear plastic decal shield.
PART NUMBER
PART NAME
CLASS
E3ZZ-12200-A
Distributor Rotor
A
E2FZ-12127-P
Distributor - TFI
W
E2FZ-12127-R
Distributor - Dura-Spark II
W
OTHER APPLICABLE ARTICLES: 82-21-16
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP 12127-B-83
TIME:
(Replace Rotor) 0.3 Hr.
OPERATION: SP 12127-B1-83
TIME:
(Replace Distributor) 0.4 Hr. DLR. CODING: Basic Part No. 12127 Code: 53
Technical Service Bulletin # 84619S
Date: 840428
Engine - Vibration at Idle in DRIVE
Article No. 84-6-19-S
VIBRATION - IDLE SHAKE/BOOM - (1.6L) ATX TRANSMISSION
FORD 1981-84 ESCORT, EXP
LINCOLN-MERCURY 1981-84 LYNX, LN7
Vehicles which exhibit conditions of idle shake (roughness) or idle boom can be serviced by increasing "in drive" curb idle speed to 825 rpm and
naturalizing the front bumper PGM system.
CAUTION: DO NOT EXCEED 825 RPM CURB IDLE SPEED IN DRIVE. EXCESSIVE SPEEDS CAN CAUSE DETONATION AT IDLE WITH
AIR CONDITIONING ON DURING WARM TEMPERATURE OPERATION.
1.
Adjust idle speed to 825 rpm in Drive with the lights and cooling fan on. Idle speed with A/C on must be at this same speed or slightly higher.
2.
If the idle is still rough, or idle boom still exists, proceed by modifying the front bumper to allow it to vibrate at idle. Its vibration will damp out
the vibration in the steering column.
3.
Remove the front bumper; check for the presence of the steel bar attached to the inside of the aluminum bumper.
4.
Remove the metal collars that surround the 2 main supports for the front bumper by removing the (4) attaching screws (10 mm). Pull the collar
forward and move the rubber isolator ring forward.
5.
Move the PGM up and down and note that it is designed to rotate about the attachment to the body. To function properly, each PGM must be
perfectly free to move vertically and have sufficient side-to-side clearance to be able to move the front faceplate of the PGM at least 1/8" from left
to right.
6.
If the motion is restricted, proceed as follows: Using a 5 lb. hammer, strike the face to the left and then to the right until the desired 1/8" of free