firing order
Thread Starter
Racer
Joined: Mar 2012
Posts: 445
Likes: 0
From: pennsylvania
firing order
I am no expert when it comes to motors. Can someone explain why their is a counter clockwise or clockwise. I have seen at least three different wording orders on the distributor cap. How do I know mine is correct considering when I but my 74 sbc they told me it is a crate motor with electronic ignition. The reason I am asking is when I let of the gas at around 55 it back fires a little. I have a new distributor, new cap, new wires and new plugs and I took it to the shop to check the timing and they said they needed to advance it. Thanks a lot.
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
I am no expert when it comes to motors. Can someone explain why their is a counter clockwise or clockwise. I have seen at least three different wording orders on the distributor cap. How do I know mine is correct considering when I but my 74 sbc they told me it is a crate motor with electronic ignition. The reason I am asking is when I let of the gas at around 55 it back fires a little. I have a new distributor, new cap, new wires and new plugs and I took it to the shop to check the timing and they said they needed to advance it. Thanks a lot.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
There are electronic modules that insert in distributor with rotor and there are modern rotor-less ignition systems. With the latter, there is some sort of device that signals the ECM with crank position information.
HEI systems and points systems that are converted to EI still have rotors.
Also:
Chevy distributors turn CW; Pontiac distributors turn CCW; some distributor caps have the plug leads reorganized internally so that 2-4-6-8 extend out the right side of the cap and 1-3-5-7 extend out the left side. There are lots of ways to 'run a wire'.
HEI systems and points systems that are converted to EI still have rotors.
Also:
Chevy distributors turn CW; Pontiac distributors turn CCW; some distributor caps have the plug leads reorganized internally so that 2-4-6-8 extend out the right side of the cap and 1-3-5-7 extend out the left side. There are lots of ways to 'run a wire'.
Last edited by 7T1vette; Jul 26, 2014 at 12:12 AM.
Team Owner
Joined: Jun 2000
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From: Southbound
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