Question about 1986 Ford F 250

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Distributor cap firing order

I need the diagram for this truck please, 5.0 motor

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When facing the engine from the front of the truck, the cylinders are numbered from front left to rear left side of engine 1234. the right side would ten be from front to back 5678. The firing order for a 302cid engine (5.0 litre) is 15426378. The number 1 plug wire in your distributor cap should typically be located on the back side of the cap itself, but the best way to know is to pop the cap and turn your engine over by bumping your starter momentarily until you get your timing marks where you can see them on your harmonic balancer. To ensure you are at top dead center, you may want to pull spark plug number one and stick a screwdriver into the hole. If the screwdriver is stopped because it hits something right away, this means you are 180degrees off and will need to again bump your starter until you once again align your timing marks and then check the cylinder with your screwdriver. this time it should easily enter the cylinder. replace your spark plug and attach the plug wire to the spark plug. Now looking at the rotor underneath the distributor cap, the position it is pointing to is where you plug in wire number 1. You wire your distributor cap counter-clockwise 15426378. I hope this helps you out.

Posted on Apr 09, 2015

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