Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

are these compatible

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Old Aug 15, 2011 | 01:08 PM
  #11  
Canary94GT's Avatar
Canary94GT
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I ordered the Ignitor I to go with my stock coil and it should be here tomorrow or Wednesday. Will let you know how it goes.

Btw, used kalli's methods and my dizzy looks like it's in good shape

Last edited by Canary94GT; Aug 15, 2011 at 01:11 PM.
Old Aug 16, 2011 | 07:58 PM
  #12  
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Canary94GT
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Got the Ignitor I today and installed it easily with my stock coil and no modification to the resistor wire.

It fired right up and idled nice. Took it for a drive and it seems to run smoother, but seemed it was pinging so I had to retard the timing. I think it might have been because my points gap was set incorrectly, not sure. But I also need to fiddle with the idle screws because I think it is idling at too high of an rpm (not because of the Ignitor).

Last edited by Canary94GT; Aug 16, 2011 at 10:03 PM.
Old Aug 16, 2011 | 09:53 PM
  #13  
MustangFTW
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Originally Posted by Canary94GT
Got the Ignitor I today and installed it easily with my stock coil and no modification to the resistor wire.

It fired right up and idled nice. Took it for a drive and it seems to run smoother, but seemed it was pinging so I had to retard the timing. I think it might have been because my points gap was set incorrectly, not sure. But I also need to fiddle with the idle screws because I think it is idling at too high of an rpm.
i could tell this is going to be useful info for someone.
Old Aug 17, 2011 | 08:59 AM
  #14  
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kalli
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well in a points system the very second the points open the ignition fires. then they go through the full opening cycle, close down and as soon as they are connected it's charging the coil for the next fire. as soon as it opens again it fires.
In an engine where everything is set perfectly you can assume that only after 2000 miles the points have so much wear that they open sooner or later then what you set them originally to. This causes the timing to change. in most cases it's going the worse direction: earlier. A lot of people or when they get the car handed down feel that the ignition is set wrong and start advancing or retarding without even looking at the points. Or they adjust the timing and then adjust the points. same mistake.
So basically if you change to a ignitor the timing will never be right and you absolutely have to time the engine again. _but_ here comes the good news. that module will not wear. once the timing is adjusted properly, that's it. no more adjusting points every 1000 miles. I actually think that's what the ford shop manual says:every 1000miles. and I know people who drive their car for 10.000+ without even looking at them ...

Anyway ... get a timing gun (borrow from a friend). Time the engine and you won't have to do it again :-)
Old Aug 17, 2011 | 12:00 PM
  #15  
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Canary94GT
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From: Seattle, WA
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Yeah my points were set at .021 when they should have been .027.

I changed/set the points approximately 1000-1500 miles ago, but I can't remember what I set them at.

That's good to know though that it could have caused timing problems, and it wasn't just my imagination
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