The distributor has two screws from the closer to the fire wall of the truck count one pin of your cap to your left hand faicing the engine
NEW ANSWER: It would really help to know the year. Take the distributor cap loose so you can raise it up and see the rotor. Then take the #1 spark plug out. That would be the first plug up front on the drivers side head. Then put your finger over the plug hole while you have someone to bump the key/engine over alittle at a time until you fill air stop trying to push your finger off of the plug hole, as soon as it stopes then pay attention to where the rotor is pointing on the cap. That will be were #1 wire goes on the cap. It is tricky to do.so do it a few times until you get the fill of it. Remove the coil wire before doing this.
The number #1 plug is the forward-most plug on the left (driver's) side. Trace that wire back to the cap and you've got your answer.
the one inline with the coil in front to the left
The number 1 cylinder is located at the front left of the engine block while FACING the engine. Follow the spark plug wire to the distributor a POW there it is.
Yes.
For a 1985 Chevy S10 with a 2.8L engine the firing order is: 1-2-3-4-5-6 The Distributor rotation is clockwise.
It is in the very back of the engine. Just follow a plug wire from the spark plug to the distributor cap. It is hard to see. All the plug wires start at the distributor and then hook to each plug.
Assuming this is a 4.3L engine, standing in front with the hood open, looking at the distributor, #1 would be at the 5:30 position.
get the compression stroke up on the number 1 spark plug and look at the rotor inside the distributor cap to see if it points to the number 1 wire on the cap
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.
+ goes to starter solenoid, - goes to distributor side post. center plug wire goes to center plug on distributor.
Drivers side, front plug.
Bad plug, bad wire, bad distributor cap or bad valve.