Mazda 1979-1984 RX7 Reference manual

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1.3L ENG NO START/BLOWN FUSE - SHORT IN WIRE HARNESS CAT. 15, NO. 012/85
Article Text
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:29AM
ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN
APPLICATION
1979-84 RX7
SUBJECT
"ENGINE" Fuse Blows/No Start
REFERENCE
Mazda Motors Corp., Service Bulletin, No. 15 012/85, September, 1985
CONDITION & CAUSE
Some 1979-84 RX7 vehicles may exhibit an "ENGINE" fuse that blows,
preventing the engine from starting. This problem may be caused by an
electrical short circuit in the wiring harness.
REPAIR
Check for a short circuit in the wire harness in the area of the
thermostat and air hose to the air cleaner. See Fig. 1.
Fig. 1: View of Wiring Harness
END OF ARTICLE

ACCEPTABLE BATTERY DRAIN CAT. 5, NO. 017/88
Article Text
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:29AM
ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN
CURRENT DRAW FROM THE BATTERY
Model: All Models
Bulletin No.: 017/88
Date: 7/27/88
Category: 5
DESCRIPTION
In order to maintain the memory of the electrical equipment such as
radio, clock, and several other control units, a small amount of
current is drawn from the battery even though the vehicle is not in
use. Although the actual current may vary according to the electrical
equipment in each vehicle, the following specification can be used to
determine if the current draw of the vehicle in question is normal or
not.
CURRENT DRAW AMPERAGE
All Vehicles: 15 to 25 mA (Ignition key is removed or in the lock
position).
NOTE:
If the ignition key is in the ACC position, up to 250 mA is drawn from
the battery. This current draw is large enough to discharge the
battery in a few days.
TEST PROCEDURES
1. Turn the ignition switch off and remove the key from the cylinder.
2. Turn off all electrical loads. Make sure all doors and the trunk
lid are completely closed.
3. Open the hood and disconnect the negative battery terminal.
NOTE:
If the vehicle is equipped with theft-deterrent system, disconnect the
coupler from the hood switch so that the warning light of the theft-
deterrent system is not operable.
4. Set the circuit tester to the "DC mA" range, to at least 100 mA
range and check the current as follows:
Positive lead from tester to Negative Battery Cable
Negative lead from tester to Negative Battery Post.
CAUTION:
Do not open the door while checking the current, as the tester will be

ACCEPTABLE BATTERY DRAIN CAT. 5, NO. 017/88
Article Text (p. 2)
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:29AM
damaged by the excessive current.
Fig. 1: Testing Currant Draw
END OF ARTICLE

ALTERNATOR/REGULATOR TEST PROCESS/REPLACEMENT INFO CAT. 5, NO. 058/83
Article Text
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:30AM
ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN
IC REGULATOR CHECKING PROCEDURE
Models All Models
Bulletin No. 058/83
Category 5
Date 11/9/83
DESCRIPTION
Checking procedure for the built-in IC regulator has been
established to pin point the alternator problem. Basically, the
alternator should be replaced as a unit through the exchange program.
However, in case of a shortage of refurbished alternators, you may
replace the IC regulator to minimize inconvenience of customers (see
Fig. 1).
Fig. 1: Exploded View of Alternator
PARTS INFORMATION
Regulator N221 24 520
CHECKING PROCEDURE
1. Make sure the battery is fully charged.
2. Turn ignition key on to "Ig" position. If the alternator warning
light is "off", the problem is likely to be caused by regulator.
Leave the key in "Ig" position and take the following step to
assure the cause.
3. Insert volt meter between "F" terminal and nearest ground point
(Fig. 2).
4. Do not ground to the body of the alternator while positive probe
of voltmeter is inserted through the hole for "F" terminal.

ALTERNATOR/REGULATOR TEST PROCESS/REPLACEMENT INFO CAT. 5, NO. 058/83
Article Text (p. 2)
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:30AM
Fig. 2: Location of "F" Terminal
REPAIR PROCEDURE
Please refer to the Service Information for IC regulator replacing
procedure.
NOTE: Be sure the insulators are in the proper position as shown in
Fig. 3.
Fig. 3: Proper Location of Insulators
END OF ARTICLE

AUDIO SYSTEM TROUBLESHOOTING PROCEDURES CAT. 15, NO. 078/89
Article Text
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:30AM
ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN
AUDIO SYSTEM TROUBLESHOOTING
Model All Mazda Models
Category 15, Body Electrical System
Bulletin No. 078/89
Date May 5, 1989
DESCRIPTION
To simplify audio system troubleshooting, a flow chart (see Fig. 1)
has been prepared. It contains essentials of audio system trouble-
shooting procedures, focusing on the following:
* Obtain accurate information of customer's complaint.
* Carry out appropriate diagnosis or troubleshooting to find the
faulty part.
* Avoid replacing unnecessary parts.
* Verify whether the customer's complaint results from specific
characteristics of FM radio waves. If so, the complaint cannot be
corrected by audio component replacement.
Use the following materials with the attached flow chart when
carrying out inspection and repair of the audio system.
* Audio System Troubleshooting Procedures (plastic sheet)
* Service Bulletin, Category 15, 050/87 (FM Reception)
* Audio Customer Questionnaire
* Workshop Manual
NOTE: If it becomes necessary to disconnect power to the audio
system, be sure to copy down the customer's preset stations.
Re-set these stations after repairs are complete.

AUDIO SYSTEM TROUBLESHOOTING PROCEDURES CAT. 15, NO. 078/89
Article Text (p. 2)
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:30AM
Fig. 1: Audio System Troubleshooting
END OF ARTICLE

BATTERY REMOVAL/INSTALL WIRE CLIP WARNING CAT. 14, NO. 009/85
Article Text
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:31AM
ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN
BATTERY CLAMP BOLT & NUT
Models RX-7
Bulletin No. 009/85
Category 14
Date 1/22/85
DESCRIPTION
During installation of the battery clamp rod and nut, it is possible
for wire clip to become pinched in the threads on the clamp bolt,
resulting in the nut binding on the clamp rod. See Fig. 1.
If you encounter this problem, please follow the repair procedure
below.
Fig. 1: Battery Clamp Bolt & Nut
PARTS INFORMATION
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
PART NUMBER DESCRIPTION
0613 65 857A Clamp Bolt
9994 00 602 Nut
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
REPAIR PROCEDURE
1. Carefully remove the nut from the battery clamp bolt.
2. Use a die to repair the threads on the clamp bolt.
3. Install a small washer on top of the wire clip to prevent damage
to the threads on the clamp bolt during reinstallation.
END OF ARTICLE

FUSIBLE LINK REFERENCE CHART NO. T-2-3
Article Text
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:31AM
ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN
FUSIBLE LINK REFERENCE CHART
Model: All Mazda
Date: November 1, 1990 (Revised - April 27, 1992)
No: T-2-3
Group: Parts Bulletin
SERVICE INFORMATION
For easy reference, the following list of Fusible Links have been
compiled.
FUSIBLE LINK REFERENCE CHART
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
Year Model Location P/N
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
1979-82 626 Engine Compartment 8174-66-760B
1983-85 626 Gas Engine Compartment 3775-67-099
1983-85 626 Diesel Engine Compartment H047-67-099
1983-85 626 Alternator HA67-67-099
1979 RX-7 Under Dash 1175-66-710A
1980 RX-7 Under Dash 8130-66-710
1980 RX-7 Engine Compartment 8341-18-055
1981 RX-7 Under Dash FA02-67-099
1981-85 RX-7 Engine Compartment 3777-67-099
1981-85 RX-7 Transmission 8341-18-055
1981-85 RX-7 Engine Compartment 8871-67-099
1984-85 RX-7 Engine Compartment 3775-67-099
1981-85 GLC Engine Compartment B003-67-099
1981-85 GLC Engine Compartment B005-67-099
1981-85 GLC Engine Compartment B006-67-099
1977-82 B2000 Engine Compartment B094-67-099
1983-84 B2000/B2200 Engine Compartment UA47-66-099
1988-93 MX-6 Engine Compartment FB01-67-099
M/T,
Non-Turbo A/T
1988-93 626 Sedan Engine Compartment FB01-67-099
1988-93 626 Hatchback Engine Compartment FB01-67-099
M/T,
Non-Turbo A/T
1990-92 929, 929S Engine Compartment FB01-67-099
1986-92 323 Engine Compartment FB01-67-099
1987-89 323 Wagon Engine Compartment FB01-67-099
1986-91, 93 RX-7 Engine Compartment FB01-67-099