Ignition Timing - Engine Spark Knock
86chrysler4 Models1987 Dakota 3.9L Engine
Subject
Spark Knock
Index
DRIVEABILITY
Date December 22, 1986
No.
18-58-86
P-4481
SYMPTOM/CONDITION
Spark knock during acceleration.
DIAGNOSIS
Check the ignition timing as outlined in the Diagnostic Test Procedure. If the ignition timing is not 3~ BTDC, reset using repair procedure.
REPAIR PROCEDURE
This procedure involves setting basic timing to a revised specification.
1. Using Diagnostic Test Procedure, retard basic timing 7~ BTDC to 3~ BTDC.
2. Reset idle as outlined in Diagnostic Test Procedure.
3. Type Authorized Modification Label, PN 4275086, as shown in Figure 1 and attach near VECI label.
POLICY: Reimbursable within the provisions of the warranty
TIME ALLOWANCE:
Labor Operation No. 08-15-01-95. . . . . . . . 0.4 Hrs.
FAILURE CODE: AM - Authorized Modification