RX7 2RTR- 1308cc 1.3L FI (1987)
Spark Plug: All Technical Service Bulletins
Campaign - Spark Plug
SPECIAL SERVICE PROGRAM (SSP03) 1986 & 1987 RX-7 SPARK PLUG
TO:
All Mazda Dealers
ATTENTION:
All General Managers & Service Managers
SUBJECT:
1986 & 1987 RX-7 Spark Plug Service Program
Dear Dealer:
Mazda Motor Corporation has decided to conduct a service program for spark plugs on certain 1986 and 1987 RX-7 models starting on September 1,
1986.
There is a possibility that the insulator around the center electrode of the spark plugs on 1986 and 1987 RX-7s may crack and pieces of the insulator may
fall into the engine, resulting in engine damage such as low compression, etc.
Detailed procedures for this program are shown on attachments I and II. The letter to be sent to the owner is attachment III.
If the subject vehicles are in your inventory, you are requested to complete the necessary work before delivery.
Should you have any questions, please contact your District Service Manager.
Your cooperation in carrying out this program is greatly appreciated.
Attachment I
1986 & 1987 RX-7 Spark Plug Service Program
Note:
The spark plug information has been updated.
A.
Description of the Program
All (4) spark plugs of the subject vehicles will be replaced with modified ones between September 1, 1986 and August 31, 1987.
B.
Subject Vehicles
The subject vehicles are certain 1986 and 1987 RX-7 models within the following VIN ranges.
1.
1986 RX-7 model
JM1FC331*G0100001 - JM1FC331*G0150450
2.
1987 RX-7 Turbo model
JM1FC332*H0100001 - JM1FC332*H0152627
NOTE:
The modified spark plugs have already been installed on some of the subject vehicles at the port and/or factory. Therefore, some vehicles will
not require the replacement work. Refer to the repair procedures for details.
C.
Repairs for Units Already Retailed
1.
1986 RX-7 model (Non-Turbo)
No owner notification will be sent to 1986 RX-7 owners. Please check the spark plugs during regular scheduled maintenance (or any other
opportunity) and replace the spark plugs, if necessary.
2.
1987 RX-7 Turbo model
An owner mailing will be conducted for all subject 1987 RX-7 Turbo models because it is expected that the rate of failure will be higher than
the non-turbos. Those owners will be notified on or after September 1, 1986 by first class mail. In addition to the owner notification, each
dealer is requested to expedite this program by calling owners.
