86-93 5.0L Mustang Ignition Timing: How To

Posted 6/3/2013 by Jonathan McDonald

Need help setting the timing on your 86-93 5.0L Mustang? Watch our how to video and read the article for all the information you need to properly set the timing in your Stang!

FOLLOW: mustang , 79 93 mustang , fox body , video , installation , engine , ignition

Advancing the ignition timing on your Fox Mustang is one of the age old "free" horsepower mods. A timing light, a wrench, and a little bit of time will net you more power. Thats just one reason to adjust your timing. The other is if you've moved your distributor at all. If you have replaced, removed/installed, turned, or twisted your distributor you need to check & possibly adjust your ignition timing!

Checking and adjusting the ignition timing won't take long, but will require you to have a timing light and a specialty distributor wrench or a 1/4" ratchet, long extension, swivel joint, and a 1/2" socket. Before getting started, a good "best practice" is to clean & clearly mark your harmonic balancer as well as the leading edge of the timing pointer (has TIME stamped right next to it).

Step 1:
To start out, remove the spout connector then lightly loosen the distributor hold down bolt. Not too much, just enough to where you can twist the distributor with a little bit of force.



Step 2:
Hook up your timing light to the number one spark plug wire. Start the car.



Step 3:
Checking your timing. On this car I'm going to go for twelve degrees initially and then after some driving will bump it up by two degree increments until we get some detonation and the bump it down.



Step 4:
Once you get your timing at the proper point lock down the distributor hold down, kill the engine, plug your spout connector back in, start the car back up, and then verify that the computer is actually advancing timing



Once verified, your good to take it for a ride! If you need help on replacing your Distributor, check out our How To Install A Mustang Distributor article.

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About the Video

Fox Body Mustang Tech - How To Set Your Timing 5.0L

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Published on 2013-06-03
Anytime you install or move the distributor on your 86-93 5.0L Mustang you need to check and possibly adjust the timing. Also advancing your timing is a age old way to free up some more horsepower in your Stang. Adjusting and setting the timing is an easy process but just need some simple hand tools and a little bit of patience. The simple process requires you to loosen the distributor, remove the spout connector and adjust timing at the distributor with the help of a timing light. Follow the instructions in the link above and you will be on your way to making some more HP in no time.
Transcript
0:00:00 - 0:00:14
Now anytime you mess with your distributor, especially replacing it, you'll want to verify your timing. To do that you'll want to start out by removing the spout connector then lightly loosen the distributor hold down bolt.

0:00:14 - 0:00:27
Not too much, just enough to where you can twist the distributor with a little bit of force. Hook up your timing light to the number one spark plug wire. Start the car.

0:00:27 - 0:00:54
Checking your timing. On this car I'm going to go for twelve degrees initially and then after some driving will bump it up by two degree increments until we get some detonation and the bump it down. Once you get your timing at the proper point lock down the distributor hold down, kill the engine, plug your spout connector back in, start the car back up, and then verify that the computer is actually advancing timing.

0:00:54 - 0:00:57
Once you verified that you're done and ready to drive your car.

86-93 5.0L Mustang Ignition Timing: How To Tech Info

This Install is intended to help with the following year models:
1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93)