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I don't know your year--make--model? You should be able to remove dist cap, crank the engine, watch which way the rotor turns, then you know the direction of rotation. Most chevy rwd v8, firing order, 18436572. The driver side bank is odd numbered, 1357.
The passenger side bank is even numbered, 2468 from front to back. Put your number one piston on tdc of compression stroke. Then whichever spark plug tower the rotor is leading into, should be number one, then you follow the firing order around the cap.
What is year--make--model and engine size? The basics, if it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs, gasoline engine. If spark everywhere, use a gage and check proper fuel pressure, also check for fuel injector pulse. Check cylinder compression.
Every time you try to start it, it dumps fuel. Pull a plug wire and check for spark. If you have spark. replace the plugs, they are fouled out. If no spark, look at the crank sensor, ignition module, coil, cap and rotor. You will still need to replace the plugs..
The firing order is 1342 Number 1 should be marked on the distributor cap . start from there , notice the direction the rotor turns, next terminal on the caps goes to number 3 cylinder and so on. to find number one if the cap is not marked do the following. remove number 1 spark plug and turn engine over till compression is felt, line up the timing marks on the crank pulley and timing cover. remove the dist. cap the rotor is now pointing to number 1 position on the cap.
You are going to have to line the rotor button up with number one plug wire,remove cap,and bump engine over close to tdc on the crank pulley,,now this needs to be on intake stroke,removing number one spark plug,and putting your thumb over the spark plug hole on number one cylinder will tell you,when it sucks your thumb,then it is number one intake stroke,then ,make sure the tdc is dead on O and look at where the rotor button is pointing,this will be number one on the distributor cap,I hope this was helpful,if so,please let us know,thank you.
most likely the ign switch is ok if you are getting spark. so you have a hot spark at coil and weak fire at plugs? if you have a test light check the positive side of coil for power when turning key on and cranking. if it is dropping power on positive side then ign switch could be bad. can "hotwire" coil by jumping a wire to positive side of coil to pos of battery this will eliminate ign switch.
First thing is to ck for a spark, see if she has good spark. Next remove the cap and watch the rotor button as it turns, have someone crank the engine to see, looking for which direction. Next turn the engine by hand looking for any marks on the crankshaft pully. aligning any marks should be #1 or #4 piston firing position. you will have to do this trial and error. Next if your rotor buton turns to the left align the marks on your pully and put your # 1 plug wire at the port in the cap which the rotor button is pointing at, then next put the #3 plug wire in,next #4 and last in turn would be #2. The firing order is 1,3,4,2.which ever direction the rotor button turns. if it starts and runs ruff you are out of phase 180 degs. move the wires two ports in the cap as the rotor turns.
Remove the distributor cap, so that the rotor is visible. Have an assistant turn the ignition to crank the engine over. If the rotor does not turn when the engine is cranking, then you need a timing belt or chain.
If you indeed are getting no spark on any plugs, check your plug wire that runs from the rotor to your ignition coil- the one that doesn't go to the engine. Make sure the internal connections didn't pull out and get crushed back in or fall out. Try one of your other plug wires on it and see if it fires- won't run good but you will see difference and be done troubleshooting. Other than that, you bought the rotor button and and rotor as a set right? Make sure the button metal tip is contacting the cap. If you got the wrong one, it may sit too low for the contacts even if it is long enuff. If you were getting spark, I would just say you got the firing order wrong.