Answer
The position of cylinder 1 depends on the engine manufacturer and how they decided to number it. You will need to look in a Chilton or other type automotive manual to get the position of #1 cylinder.
The position of #1 on the distributor cap can often be changed when a mechanic works on the engine so you can't even go by the book when you're trying to figure out where to put the wires. The easiest way to determine where #1 is on the distributor cap is:
Pull all sparkplugs. (this makes it easier to turn the engine by hand)
Lightly place your finger over the plug hole of cylinder 1 (Figure out the position of #1 by checking the manual) and slowly turn the engine by hand until you feel compression on that cylinder. Keep turning the engine until you feel the engine STOP making pressure and start PULLING. At that point, turn the engine the OTHER direction until you get to that point where turning either way starts pulling. At that point the engine is at #1 Top Dead Center. Pull the distributor cap and the rotor is pointing at the #1 position.
Answer
This may also help you. copy and paste into your browser. http://autorepair.about.com/od/enginefiringorders1/ Pick you model year and then make.
First answer by Redbeard. Last edit by Clay. Contributor trust: 3280 [recommend contributor]. Question popularity: 46 [recommend question]
Answers.com > Wiki Answers > Categories > Cars and Vehicles > Asian Cars > Subaru > Are the plug numbers on engine right 1 and 3 and left 2 and 4 And which is number 1 on distributor cap?
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