To find where number one spark plug wire connects to the distributor, remove the distriutor cap and set number one piston at Top Dead Center (TDC). At TDC, the rotor should be pointing to where number one spark plug wire connects.
# 1 on the distributor cap faces to the FRONT / CENTER
Number 1 on the distributor cap is the top post closet to the firewall. Looking at the distributor cap it would be... top row 1-3 bottom 2-4
where is number one on a vortex 4.3 v-6 distributor cap
The marked # 1 position on the distributor cap faces towards the REAR
The distributor cap should have the number 1 marked on it. The distributor cap is installed with the # 1 position facing the engine , slightly towards the drivers side of the engine
in number 1
The easiest way to find it is to set #1 piston at TDC and see where the rotor is pointing, it should be pointing to number 1 terminal on the distributor cap.
make sure that the number 1 piston is at tdc on the compression stroke, then look and make sure the rotor is pointing at number 1. if not lift the distributor up and turn it towards the number 1 cylinder and put the number 1 wire on the cap were number 1 is, then wire it 1,8,4,3,6,5,7,2 clockwise It probably means that the piston is between the exhaust and intake cycle and that you need to turn the crankcase 360 degrees. That should put the distributor in the right place.
The marked # 1 position on the distributor cap faces to the FRONT
The number one plug is the one on the drivers side front of the engine. Therefore the plug wire connected to that plug is number 1 and where it connects to the distributor is the number 1 position on the distributor. If you have removed all the plug wires then you will have to remove the spark plugs, turn the engine over until the number 1 cylinder is at top dead center (TDC) on the compressions stroke. Once it is at TDC then the rotor inside the distributor will be pointing to the number 1 position.
# 1 on the distributor cap faces to the FRONT / CENTER
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