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Old 12-02-2002, 09:07 AM   #1
2point6
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Default how to convert external coil to internal (Hybriders)

This is a basic "how to" showing the steps I took to change a internal coil from a f22a to an external coil h22a distributor. What makes this conversion tricky, is that the USDM h22a Distibutor used comes originally set-up for an external coil.

On the right side of this picture is the (internal coil) distributor from the f22. We will take the parts from this and add to the H22a (external coil set up) distributor on the left.
Click the image to open in full size.
Here is what the internals look like side by side.
Click the image to open in full size.
Start by removing the coil. Disconnect the wires leading to the coil. There are 2 phillips head screws that hold the coil in place. Transfer the coil to the h22a distributor housing.
Click the image to open in full size.
Now we will get into the wiring. This step shows to disconnect the green wire from the h22a ignitor.
Click the image to open in full size.
In this next picture You can see the jumper (yellow wire/coil negitive) That was removed from the f22a distributor and in place on the h22a.
Click the image to open in full size.
With the coil in place and the negative jumper attached, we will now work on the positive connection. This following picture shows that right next to the green wire (that was disconnected) is the black with yellow stripe. You will cut this wire aproximately half way between the connector and the plastic tubing. From the f22a distributor you will disconnect the same wire and cut in the same place. This should leave you with a "Y" connection with the connector for the ignitor on one end and a ring terminal on the other. The 2 cut ends will be soldered together. Transfer this wire to the H22a distributor. This will be the only (non factory) connection.
Click the image to open in full size.
Strip the black/yellow stripe wire and solder and heat shrink the ends together.
Click the image to open in full size.
Back to this picture for a second. The disconnected green wire can be left in place just be sure to tape it up good so it wont get caught on any of the rotating parts. I however cut it off at the tubing and pull the wire out of the distributor all together.
Click the image to open in full size.
Here is a shot of the connector with the green wire removed. This wire is completely removed all together as an extra precaution.
Click the image to open in full size.
This is what the completed distributor should look like. Almost completely factory.
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Old 12-02-2002, 10:04 AM   #2
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Default Re: how to convert external coil to internal (2point6)

thank you for the post.. because i am gonna be getting a h22a soon... and i am reading up on all the **** i need to do to it .. Click the image to open in full size. Click the image to open in full size.
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Old 12-02-2002, 10:37 AM   #3
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Default Re: how to convert external coil to internal (2point6)

you are my hero scott! i Click the image to open in full size. you man!
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Old 12-02-2002, 11:07 AM   #4
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Default Re: how to convert external coil to internal (Kazmans94cord)

Quote:
you are my hero scott! i Click the image to open in full size. you man!
LOL. Just trying my best to impress...I mean help you guys. Click the image to open in full size.
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Old 12-02-2002, 11:35 AM   #5
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Default Re: how to convert external coil to internal (2point6)

Sweet....Nice Job! I should've paid you to do the photography on my "Fix Your ABS for $1.51" thread. Click the image to open in full size.
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Old 12-02-2002, 12:40 PM   #6
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Default Re: how to convert external coil to internal (RotaryBzzz)

Click the image to open in full size.
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Old 12-02-2002, 01:30 PM   #7
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Default Re: how to convert external coil to internal (2point6)

Good job! Click the image to open in full size.
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Old 12-02-2002, 01:57 PM   #8
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Default Re: how to convert external coil to internal (EuRoBrO)

Click the image to open in full size. Nice.

Thx again for the pan.
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Old 12-03-2002, 08:44 AM   #9
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Default Re: how to convert external coil to internal (niedejb)

Can I just ask you why you did this? With my h22a, i had to convert from an internal to an external to run an msd ignition. Whats the advantage of going reverse? Just curious, thanks
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Old 12-03-2002, 09:11 AM   #10
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Default Re: how to convert external coil to internal (dvp95)

In this case it was a USDM h22a being put in a 90 Accord. This was the easiest fix. Distributor question pop up frequently so this was on of the solutions to an unusual conversion. I will be posting how to do the extrernal coil conversion later today if time permits.
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Old 12-03-2002, 06:06 PM   #11
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Default Re: how to convert external coil to internal (2point6)

Click the image to open in full size.
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Old 12-03-2002, 08:53 PM   #12
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Default Re: how to convert external coil to internal (The_In_Kid)

very nice Click the image to open in full size.
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Old 12-03-2002, 11:15 PM   #13
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Default Re: how to convert external coil to internal (gringo7718)

yeah i had to do something like this on my, cause one was internal and the other was external. then i tried to pull off the plugs from the lx and the ex and they were different than the h22, worst off one had like five wires and a square plug and the other was three wires and round plug but all the harnesses were different. i still get a headache thinking of what we did. .. hhehehe i used parts from a B18 coil and stuff to finally get it working
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Old 12-06-2002, 03:50 AM   #14
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Default Re: how to convert external coil to internal (KTeller8)

ttt
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Old 01-31-2004, 07:06 AM   #15
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Default Re: how to convert external coil to internal (2point6)

Hi, I have a 93 prelude 2 f22 and dropping a H22aJDM using f22 harness. The f22a has an external coil while H22AJDM has internal. Just the opposite of the post. What do you recommend I do with the extra coil connector.

-mc-
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Old 08-09-2007, 01:45 PM   #16
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Default Re: how to convert external coil to internal (93R33Lude)

bump, im going thru the same thing
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Old 03-29-2009, 04:18 PM   #17
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Default Using a D16z6 coil

Click the image to open in full size.
see that? thats a D16Z6 internal distributor coil. (yes i know the positive wire is missing, so i made my own.)

Click the image to open in full size.
aaaand thats a USDM H22a1 distributor with the external coil

Click the image to open in full size.
Y'd off the black and yellow to the positive wire (soldered, headshrinked, and E-taped)

Click the image to open in full size.
yanked the green wire out completly, from the plug too.

Click the image to open in full size.
hooked the yellow and black Y'd wire back up

Click the image to open in full size.
hooked the yellow and black wire up to the internal coil (positive)

Click the image to open in full size.
then i hooked the wire that was already on the internal coil (yellow with a blue stripe) up to the only tab left open on the ignitor.

i ordered a distributor cap for a 1991 Accord DX. its got an internal coil so itll work
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Last edited by nix94delsol; 04-03-2009 at 12:06 PM.
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Old 01-05-2011, 05:15 PM   #18
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Default Re: how to convert external coil to internal (Hybriders)

does anyone know to to swap from a external distributor to an internal one?

i have a 92 10th anniversary lx which is external and the dizzy is messed up and i have an extra 91 ex one which is internal

how do i put the actual internal coiled distributor onto my external coiled car
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Old 11-05-2011, 07:18 PM   #19
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Default Re: how to convert external coil to internal (Hybriders)

OK i have a JDM H22A i want to install an EXTERNAL coil How do i do this? I tried alot of methods but it doesnt add up, BTW its a 1996 H22A, origionally internal coil.
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