Hello everyone!
Just like a lot of people on this forum, I need help.
I have a 1989 MGM 5.0. It's a great car, near new condition just rolled back over to 00000 miles.
Now for the problem, I just did a tune up on it because EVERYTHING is original 1989 and it felt like the plugs were fouled out.
Anyways I put on new: plugs and wires, new coil, and a whole new distributor because I found a crack in the base/stalk.
So after re-installing everything and using the 1-5 firing pattern for the non-HO 302's it wouldn't fire.
I thought maybe I had the dizzy a little off from my install, so I brought it up to tdc and then to the 10 degree mark on the crank. set the dizzy to #1..... and still no start. You could hear it pop in the exhaust like the timing was off. I was stumped, but I remembered seeing H.O. stamped on the original dizzy, so I set it to the 351/H.O. firing order just for s**t's and giggles, and Bam it started. WTF. Granted it ran like total dog crap, missing on like 3 or 4 cylinders (because I dont think its the right firing order), but it gave me enough time to get the timing set with the light. (10 degrees btdc). I cannot get the car to fire off when it is set to the 1-5 firing order though.... and I know that is what it was at when I parked the car, I marked the wires.
My question is HOW will the car run on the wrong firing order, but not the correct one? Has this ever happened to anyone else? I have searched and searched but cannot find where this is posted previously. If anyone can help it will be so greatly appreciated.
Just like a lot of people on this forum, I need help.
I have a 1989 MGM 5.0. It's a great car, near new condition just rolled back over to 00000 miles.
Now for the problem, I just did a tune up on it because EVERYTHING is original 1989 and it felt like the plugs were fouled out.
Anyways I put on new: plugs and wires, new coil, and a whole new distributor because I found a crack in the base/stalk.
So after re-installing everything and using the 1-5 firing pattern for the non-HO 302's it wouldn't fire.
I thought maybe I had the dizzy a little off from my install, so I brought it up to tdc and then to the 10 degree mark on the crank. set the dizzy to #1..... and still no start. You could hear it pop in the exhaust like the timing was off. I was stumped, but I remembered seeing H.O. stamped on the original dizzy, so I set it to the 351/H.O. firing order just for s**t's and giggles, and Bam it started. WTF. Granted it ran like total dog crap, missing on like 3 or 4 cylinders (because I dont think its the right firing order), but it gave me enough time to get the timing set with the light. (10 degrees btdc). I cannot get the car to fire off when it is set to the 1-5 firing order though.... and I know that is what it was at when I parked the car, I marked the wires.
My question is HOW will the car run on the wrong firing order, but not the correct one? Has this ever happened to anyone else? I have searched and searched but cannot find where this is posted previously. If anyone can help it will be so greatly appreciated.
Comment