I replaced my spark plugs and wires back in November, and ammachine390 showed me this PDF:
http://www.amceaglesden.com/images/Downloads/MIU.pdf
Basically is shows how to upgrade to a hotter coil. Well I wished I hadn't just bought new wires, but figured I'd do the upgrade eventually (aka when I had enough money). Finally just after Christmas I had enough (it cost roughly $110 for everything). So I pulled the old coil out, and pulled all my wires, gapped my plugs, put a bigger rotor cap in and all that jazz. And my only problem was that I switched my plug order around (again) at least this time I knew what was wrong.
(http://i883.photobucket.com/albums/ac31/MontanaEagle/DSC05892.jpg)
(http://i883.photobucket.com/albums/ac31/MontanaEagle/DSC05894.jpg)
(http://i883.photobucket.com/albums/ac31/MontanaEagle/DSC05896.jpg)
(http://i883.photobucket.com/albums/ac31/MontanaEagle/DSC05897.jpg)
(http://i883.photobucket.com/albums/ac31/MontanaEagle/DSC05899.jpg)
(http://i883.photobucket.com/albums/ac31/MontanaEagle/DSC05900.jpg)
I did go back in and change the connectors that attach the wires to the coil. I didn't have any connectors and just wrapped the nodes with the wire as can be seen in pic 2. Also, I re-did the spark plug boots as I didn't set those up quite properly. Long story short, Francine starts a little better now. Still takes a bit of cranking in the cold, I don't even try in this temp (currently about 5 degrees out). I'll replace the carburetor probably over the summer to help her start a little better.
Wow nice job !! She even has that set of triple vacumm connectors on the valve cover in place.
Quote from: 68AMXGOPAC on January 10, 2011, 10:47:02 PM
Wow nice job !! She even has that set of triple vacumm connectors on the valve cover in place.
Um... is that the feedback stuff with the little yellow plugs?
Nice Job. Just curious to know why you chose a Accel Coil (if thats what it is.) instead of of the pertronix?
Quote from: MontanaEagle on January 10, 2011, 10:49:00 PM
Quote from: 68AMXGOPAC on January 10, 2011, 10:47:02 PM
Wow nice job !! She even has that set of triple vacumm connectors on the valve cover in place.
Um... is that the feedback stuff with the little yellow plugs?
Yes, those are the feedback vacuum solenoids. They are used to control the idle speed, and where the air is directed to, either upstream or downstream.
I noticed the Accel coil also is that the 42,000 v. coil? I havn't been able to find any Protonix coils any where.
Quote from: xtcinoz on March 04, 2011, 02:51:33 AM
I noticed the Accel coil also is that the 42,000 v. coil? I havn't been able to find any Protonix coils any where.
I used this coil, I don't know about the Protonix one:
http://www.amazon.com/gp/product/B00064P99W
and these plug wires:
http://www.amazon.com/gp/product/B00064P99W
With the Bosch Platinum plugs (I found those on RockAuto and gapped them to .045). I also just searched Rock Auto for a 1985 Ford F-150 with a 300 CID engine for the cap, adapter and rotor.
if you want some really good plugs try out the E3 diamond fire plugs they give a noticeable increase in hp and a bit better mpg as well. plus they are guaranteed for five years or 100,000 miles.
Montana Eagle, Do you notice any performance gains at all? Or is just better when starting?
Quote from: amc78concord on March 04, 2011, 08:33:53 PM
Montana Eagle, Do you notice any performance gains at all? Or is just better when starting?
I'm not sure if it is because of the upgrade, but before I was getting about 14.5 mpg (always in 4wheel drive, she's not running right in 2 right now) with the upgrade I'm at about 16 highway 15.5 otherwise. I think it's from the upgrade. I don't notice any more power or anything like that.
Quote from: xtcinoz on March 04, 2011, 02:51:33 AM
I noticed the Accel coil also is that the 42,000 v. coil? I havn't been able to find any Protonix coils any where.
The Accell 8140 is 42,000V at 12V (and 1.4 Ohms)
Due to the resistor wire in the Eagle (1.35 Ohms) once running, it will have 6V primary voltage, so secondary will be split in half too: 21,000V.
Basically it is the perfect replacement for the existing coil.
If you want a little more voltage than you wil have to buy the 3 Ohm Pertronix and bypass the the resistor wire.
Would a person need to open up the sparkplug gap to get the most from a hotter spark? Does anyone know what coil Ford used with their duraspark ignition and what sparkplug gap they used?
As far as gapgoes my msd 600 ignition is in the .05ish range. It had to be. That .035 let me know it was wrong.
My 96 vicky has a hot spark as well and is .054 gapped
I went to .045 with the Accel coil.
I have 0.045" with the Pertronix coil and AP985 plugs.
Here's my spark plug guide:
http://forums.amceaglesden.com/index.php?topic=23101.0
there was a cleaning of the forums, and it might be gone... but I hope not. Double check that Jurjen.
Yup, it is gone.
But luckily I wrote it down on an old envelope of my pension insurance.
This is my research only, other Eaglers will have other preferences.
Last but not least, a word from the legal department: putting in other plugs than advised by AMC is your responsibility, not mine.
The Eagle runs best on simple plugs.
Only disadvantage is that they wear out quickly (6000 mls) in combination with the high voltage ignition.
I don't like plugs with multiple ground electrodes, because they cannot be adjusted.
And last but not least, I like the ones that protrude into the combustion chamber better because I expect the flame front to be more even (less knocking and better MPG).
Engines that are burning oil, are better off with plugs that have less protrusion
See and read under tip protrusion:
http://en.wikipedia.org/wiki/Spark_plug
Here we go:
Truckplugs Champion 4412
Some off roaders like the truckplugs best, but they are not being made any more.
Normal plugs
Champion RC12ECC
Autolite 985
NGK ZFR5N
Denso QJ16HR-Q
Bosch FR9HC+
Premium plugs
Champion RC12PEC5
Autolite AP 985
Bosch FR9HP+
Don't use, these plugs have no protrusion (or only in engines that burn oil, to prevent fouling up)
Champion RFN14LY (this is the plug advised by AMC)
NGK ZFR4-11
NGK ZFR5-11
NGK FR5-1
General data
Thread 14mm
Reach 3/4" (19mm)
Hex 5/8" (16mm)
extended projected tip
I'm still running the same AP985 that I promised to put in when I wrote this little guide.
Awesome, and an egg to you for 'Rescuing' that info and saving it. I'm finding myself doing that more and more all the time.
Smitch has already put that info up on the Eaglepedia.
http://www.amceaglesden.com/~iowaeagl/guide/index.php?title=Spark_Plug_Guide
Why not use the plug advised by AMC?
The "don't use" plugs have no protrusion, they are fine to use, but not my first choice.
I think it was the "safe" choice for AMC, since they are more or less self cleaning when the engine is using a bit of oil.
i myself use the E3 diamond fire plugs and i am quite pleased with them as i have more power and a little better fuel economy. they cost $6 a plug but they have a five year or 100,000 mile warranty.
Jurjen, what do you have your plugs gapped to?
EDIT: Nevermind, I should have looked up before I typed this question.