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  #1  
Old 06-24-2014, 08:52 PM
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67 250S firing order

I've been looking for the firing order for my 67 250s with the carbureted 2.5L straight six. All I'm finding is Ford engine orders. I've worded it many different ways and still only Fords pop up. Does anybody have a diagram of the firing order?
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  #2  
Old 06-24-2014, 09:11 PM
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15, 36, 24

too young, too old, just right
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  #3  
Old 06-24-2014, 09:36 PM
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Quote:
Originally Posted by Frank Reiner View Post
15, 36, 24

too young, too old, just right
Okay I have the firing order correct then. Is there a certain starting point on the distributor? I can smell it getting fuel, all the grounds are good, and all the wires, plugs, cap, rotor, and ignition coil are new.
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  #4  
Old 06-24-2014, 10:42 PM
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Okay, so, the firing order is now correct, new plugs, new wires (fully secure), new cap, new rotor, new ignition coil, it's getting fuel, all the grounds are good, timing is dead on.

I noticed fuel is starting to pool around he carburetor next to the firewall. Not sure why.

It cranks over but it still seems to have no spark. All the fuses are good as are the relays.....I'm out of ideas....any help?
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  #5  
Old 06-24-2014, 11:55 PM
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Quote:
Originally Posted by Lo-Key View Post
Okay, so, the firing order is now correct, new plugs, new wires (fully secure), new cap, new rotor, new ignition coil, it's getting fuel, all the grounds are good, timing is dead on.

I noticed fuel is starting to pool around he carburetor next to the firewall. Not sure why.

It cranks over but it still seems to have no spark. All the fuses are good as are the relays.....I'm out of ideas....any help?
How has timing been determined to, in fact, be "dead on"?

If the coil wire is removed from the dist. and held ~1/4" from a ground, is there spark when the engine is cranked? If so, is there also spark at each of the plugs when cranking?
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  #6  
Old 06-25-2014, 12:24 AM
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Quote:
Originally Posted by Frank Reiner View Post
How has timing been determined to, in fact, be "dead on"?

If the coil wire is removed from the dist. and held ~1/4" from a ground, is there spark when the engine is cranked? If so, is there also spark at each of the plugs when cranking?
I had my neighbor come over and take a look at it when I first got it because he's been working on these for years and he said the timing is "dead on" so that's not the problem. He gave me a list of things to check before he left and I've gone over all of them.

I'll check the wires for spark again to be sure 100%. In the morning I'm going to rent a compression tester and see if that's the problem. The oil and coolant aren't mixed and I see no spots on the ground under the engine from leaks.
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  #7  
Old 07-04-2014, 04:12 PM
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Quote:
Originally Posted by Lo-Key View Post
Okay, so, the firing order is now correct, new plugs, new wires (fully secure), new cap, new rotor, new ignition coil, it's getting fuel, all the grounds are good, timing is dead on.

I noticed fuel is starting to pool around he carburetor next to the firewall. Not sure why.

It cranks over but it still seems to have no spark. All the fuses are good as are the relays.....I'm out of ideas....any help?
Lo-Key:

Do you not recall these words? The situation would seem to be that the timing is not "dead on", but rather in the condition of Monty Python's parrot: Just plain dead.
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  #8  
Old 07-04-2014, 04:56 PM
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Quote:
Originally Posted by Frank Reiner View Post
Lo-Key:

Do you not recall these words? The situation would seem to be that the timing is not "dead on", but rather in the condition of Monty Python's parrot: Just plain dead.
I'm speaking of the distributor timing I should of been more clear on that. I'm not sure if it's retarded or advanced too much. I'm not really sure why else it would just back fire and not start. I noticed there's a fine adjustment piece on the distributor. I'm not sure if it's set properly or is off a bit.
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  #9  
Old 06-27-2014, 06:10 PM
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Quote:
Originally Posted by Frank Reiner View Post
15, 36, 24

too young, too old, just right
You know, that's how I used to remember it for years. At least, until about the first time I had a girlfriend turn 30... Then you didn't really want to go repeating that handy mnemonic real often.

MV
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  #10  
Old 06-25-2014, 09:41 AM
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Lo-Key:

The questions about spark quality were the first steps; now that you know that the spark is very weak, the next question is why. pmc has started you down that path; point cleanliness, correct gap, and condenser quality are some of the factors. Also, what is the voltage at the hot side of the coil, both with key on, and when cranking? This is a step-by-step process; there will probably be a few iterations.
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  #11  
Old 06-25-2014, 12:07 PM
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Quote:
Originally Posted by Lo-Key View Post
I've been looking for the firing order for my 67 250s with the carbureted 2.5L straight six. All I'm finding is Ford engine orders. I've worded it many different ways and still only Fords pop up. Does anybody have a diagram of the firing order?
I remember my old 220 firing order was stamped on to the engine block. Look for "zündfolge".

RayH
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  #12  
Old 06-25-2014, 12:19 PM
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It's generally on the valve cover.
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  #13  
Old 06-25-2014, 05:09 PM
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yeah I found it on the valve cover after I asked then felt stupid for asking haha.

I'll swap the ignition components from my 72 over to this one to see It helps any. I'll check back in after I do so to let you guys know if it's working or not. Thank you guys for he help so far.
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  #14  
Old 06-26-2014, 11:22 PM
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Alright.....so I swapped over the ignition coil, wires, and all the relays. Nothing changed. There's still only severely weak spark. I did notice though that the ignition coil is getting really hot. I accidentally put my arm on it and it burnt me.
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  #15  
Old 06-26-2014, 11:44 PM
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Lo-Key:

Suggest you re-read post #9.
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