1979 Mustang – Tune Up Information

1979 Ford MustangResearchTune Up
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Third Gen Mustang
1979 Ford Mustang

1979 Ford Mustang Tune-up Information

Year Engine Spark Plugs Distributor Timingº Intake
Valve
opens		 Fuel
pump
press		 Idle speed
Cyl
cid		 HP Type Gap Dwell Gap Man A/T Man A/t
1979 4-140 (2.3) .034 6 20
4-170 (2.8) 105 BF-82 .034 38 .025 8B 12B 13B 4.5 500 485
6-200 (3.3) 120 BF-82 .034 38 .025 8B 12B 6B 4.5 500 485
8-260 164 BF-42 .034 27 .015 4B 4B 21B 5 575 500
8-289 200
225		 BF-42 .034 27 .015 8B 8B 20B 5 575 500
8-289 hp 271 BF-32 .034 27 .020 10B – 46B 5 750 –
1980 6-200 120 BF-82 .034 39 .025 6 B 12B 7 4.5 600
(650)		 525
(725)
8-289 200 BF-42 .034 29 .017 6B 6B 16 4.5 600
(635)		 500
8-289 225 BF-42 .034 29 .017 6B 6B 16 4.5 600
(635)		 500
8-289 271 BF-32 .034 31 .020 12B – 46 4.5 775 –
1981 6-200 120 BF-82 .034 39 .025 6B
(5B)		 12B
(5B)		 7
(9)		 4.5 575
(700)		 550
8-289 200 BF-42 .034 29 .017 6B
(5B)		 6B
(5B)		 15 4.5 575
(625)		 475
(550)
8-289 225 BF-42 .034 29 .017 6B
(5B)		 6B
(5B)		 16 4.5 600
(625)		 525
(500)
8-289 271 BF-32 .034 32 .020 12B 12B 46 4.5 750 650
8-390 320 BF-32 .034 29 .017 12B
(6B)		 12B
(6B)		 18 4.5 600
(625)		 575
(550)
1982 6-200 115 BF-82 .034 38 .027 6B 6B 9 4-6 700 550
8-289 195 BF-42 .034 27 .021 6B 6B 15 4-6 700 550
8-302 230 BF-32 .034 29
(27)		 .017
(.021)		 6B 6B 15 4-6 625 550
8-390 265 BF-32 .034 29
(27)		 .017
(.021)		 6B 6B 13 4.5-6 625 550
8-390GT 325 BF-32 .034 29 .016 6B 6B 18 4.5-6 700 550
8-427 390 BF-32 .034 29 .017 6B 18 4.5-6 – 600
8-428 335 BF-32 .034 29 .017 6B 18 – 600
Year Engine Spark Plugs Distributor Timingº Intake
Valve
opens		 Fuel
pump
press		 Idle speed
Cyl
cid		 HP Type Gap Dwell Gap Man A/T Man A/t
1983 6-170 105 BF-82 .034 38 .025 8B 12B 13B 4.5 500 485
6-200 120 BF-82 .034 38 .025 8B 12B 6B 4.5 500 485
8-260 164 BF-42 .034 27 .015 4B 4B 21B 5 575 500
8-289 200
225		 BF-42 .034 27 .015 8B 8B 20B 5 575 500
8-289 hp 271 BF-32 .034 27 .020 10B – 46B 5 750 –
1984 6-200 120 BF-82 .034 39 .025 6 B 12B 7 4.5 600
(650)		 525
(725)
8-289 200 BF-42 .034 29 .017 6B 6B 16 4.5 600
(635)		 500
8-289 225 BF-42 .034 29 .017 6B 6B 16 4.5 600
(635)		 500
8-289 271 BF-32 .034 31 .020 12B – 46 4.5 775 –
1985 6-200 120 BF-82 .034 39 .025 6B
(5B)		 12B
(5B)		 7
(9)		 4.5 575
(700)		 550
8-289 200 BF-42 .034 29 .017 6B
(5B)		 6B
(5B)		 15 4.5 575
(625)		 475
(550)
8-289 225 BF-42 .034 29 .017 6B
(5B)		 6B
(5B)		 16 4.5 600
(625)		 525
(500)
8-289 271 BF-32 .034 32 .020 12B 12B 46 4.5 750 650
8-390 320 BF-32 .034 29 .017 12B
(6B)		 12B
(6B)		 18 4.5 600
(625)		 575
(550)
1986 6-200 115 BF-82 .034 38 .027 6B 6B 9 4-6 700 550
8-289 195 BF-42 .034 27 .021 6B 6B 15 4-6 700 550
8-302 230 BF-32 .034 29
(27)		 .017
(.021)		 6B 6B 15 4-6 625 550
8-390 265 BF-32 .034 29
(27)		 .017
(.021)		 6B 6B 13 4.5-6 625 550
8-390GT 325 BF-32 .034 29 .016 6B 6B 18 4.5-6 700 550
8-427 390 BF-32 .034 29 .017 6B 18 4.5-6 – 600
8-428 335 BF-32 .034 29 .017 6B 18 – 600
Year Engine Spark Plugs Distributor Timingº Intake
Valve
opens		 Fuel
pump
press		 Idle speed
Cyl
cid		 HP Type Gap Dwell Gap Man A/T Man A/t
1987 6-170 105 BF-82 .034 38 .025 8B 12B 13B 4.5 500 485
6-200 120 BF-82 .034 38 .025 8B 12B 6B 4.5 500 485
8-260 164 BF-42 .034 27 .015 4B 4B 21B 5 575 500
8-289 200
225		 BF-42 .034 27 .015 8B 8B 20B 5 575 500
8-289 hp 271 BF-32 .034 27 .020 10B – 46B 5 750 –
1988 6-200 120 BF-82 .034 39 .025 6 B 12B 7 4.5 600
(650)		 525
(725)
8-289 200 BF-42 .034 29 .017 6B 6B 16 4.5 600
(635)		 500
8-289 225 BF-42 .034 29 .017 6B 6B 16 4.5 600
(635)		 500
8-289 271 BF-32 .034 31 .020 12B – 46 4.5 775 –
1989 2.3L 88 .044 NA NA * * 35-45 600 650
5.0L HO 225 .054 NA NA 10B 10B 35-45 675 675
1990 2.3L 88 .044 NA NA 10B 10B 35-45 600 650
5.0L HO 225 .054 NA NA 10B 10B 35-45 675 675
Year Engine Spark Plugs Distributor Timingº Intake
Valve
opens		 Fuel
pump
press		 Idle speed
Cyl
cid		 HP Type Gap Dwell Gap Man A/T Man A/t
1991 2.3 L 105 .032 NA NA * * 35-45 600 650
5.0L HO 225 .054 NA NA 10B 10B 35-45 675 675
1992 2.3L 105 .033 NA NA * * 35-45 600 650
5.0 L HO 225 .054 NA NA 10B 10B 35-45 675 675
1993
2.3 L 105 .033 NA NA * * 35-45 600 650
5.0L HO 225 .054 10B 10B 35-45 675 675

* Refer to decal under hood, timing varies with options.

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