Question about 1978 Chevrolet C1500

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Timing on a 350 chey engine

I need help on how and where to put #1 plug wire on a chevy 350 electronic ignition were do i put #1 plug wire in the distributor cap and how do i set the timing?

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  • Anonymous Mar 19, 2014

    350 vortec put new plugs wires cap rotary button

  • Anonymous Mar 22, 2014

    i have a flat spot when pulling away. ihave fitted an electronic distributor, carb has been overhauled as well as engine. what could be the problem?

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Take out number 1 spark plug and put your finger as to block the hole ,have a friend bump the starter till you feel air rush out real fast / called the compression stroke when it does stop and look down the top center for timing marks on the pulley and line them up on the timing cover then place the distributor in place as so the rotor is pointing at the #1 piston location, basically the dr. front corner and start there, timing order is 1..8..4..3..6..5..7..2.. now if you get all these in right 1..3..5..7 are on the drivers side front to back and 2..4..6..8 on the passengers bank front to back and the distributor turns clockwise .good luck hope this helps you.

Posted on Jan 02, 2009

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Frist find the timing marks on the balancer and the timing cover. there will be o mark, number 1 spark plug will be on the left bank remove the spark plug, bump the mtr with the spark plug removed until you here air coming from that cyclinder that will be the commpession stroke, rotate the mtr by hand until you algin the timig mark on the balancer with the 0 mark on the timing indacator on the timing cover. remove the dist cap and the dist rotor should be pointing at number 1 plug wire on the cap, as long as the dist has not been removed our installed wrong, when you put the timing light to this mtr make sure that the vauccmn line going to the dist is disconnected and pluged, i would set it at 6 degrees after tdc, keep in mind the condition off the mtr

Posted on Dec 16, 2008

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Can be anywhere if you can rotate the distrubutor for dwell..18436572 is firing order. rotation counter clockwise..stock set up has #1 plug wire aimed at #6 cylinder....so.... tdc on crank gear.... rotor should be just passing number 1 on cap...good luck

Posted on Dec 16, 2008

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jturcotte
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SOURCE: i am changing to electronic

It's on the front just to the driver side. dist rotates CW with firing order 18436572.

4 3
8 6
1 5
7 2

Posted on Mar 20, 2011

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Let's cover some safety concerns first. If you try to troubleshoot a mixed up firing order with the engine running, you could be in for a serious shock,.. literally. You can do it, with certain precautions, but you really don't need to check the firing order with the engine running. You definitely don't want to try checking the firing order if you are wearing any kind of pacemaker or sensitive electromechanical prosthesis. The voltage coming out of the ignition coil is in the thousands. Common sense dictates that you wouldn't stick a knife in an electrical outlet, so you wouldn't want to take chances with being shocked by the electrical discharge from your classic chevy's ignition coil either. See the diagram:


5d6424a.png

The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.

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The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.

Additional details HERE.

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The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.
See the diagram; Click to open a printable larger image in a new window. The firing order starts with the number one cylinder. We would connect the number one spark plug wire to the distributor cap terminal in the 6:30 position. distributor.pngSince the next cylinder in the firing order is 8 (passenger side rear), we connect the number 8 spark plug wire to the next distributor cap terminal (approximately 7:30 position) in the clockwise direction from number one. You need to be sure you continue the firing order in the clockwise direction around the chevy small block distributor cap from the last installed spark plug wire. Setting the rest of the firing order is just a matter of repetition. Be sure to count the spark plugs from front to back on each side of the motor to identify the correct cylinder number in the firing order.

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Sounds as though you have plug wires wrong.
Firing order is 1-8-4-3-6-5-7-2

Distributor Ignition System:
Distributor rotates Clockwise. (Rotor)
Find Number 1 tower on distributor cap, go Clockwise with Firing Order.

Distributorless Ignition System:
VIEWING the engine from the Front of the car.

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(To guess I would say you have 5 and 7 wires switched)

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Drivers side is Left side.
Right side cylinder order is 2-4-6-8, going from front to back.

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