Pertronix Photos

[steve k.]

We have an article on pertronix ignitor that might need some photos and possibly an update

Anyone willing to contribute?

 

Thank you,

Steve 

 

[johnny02]

I could get photos pretty easily this weekend.  I just re-installed a new one last year as part of my no-start troubleshooting.  

[steve k.]

That would be awesome

[visionaut]

Steve, I’m willing to take a crack at an update… though to be honest there hasn’t been any changes really to note.

 

There’s only a few PerTronix Ignition modules relevant to our cars - the ones for vac adv dizzys and the ones for mechanical dizzys. And the PerTronix site doesn’t even show/list BMW applications anymore! (you need to search on Bosch).

 

I’ve got the 1847 installed in my mech-only dizzy since 2001. Still going strong…so glad I ditched points.  I can grab pics of that. Good to also have pics of the vac adv version install too - Johnny if that’s what you’ve got, great…

 

Drop/post the result here, or send it to you?

 

Tom-too

Edited January 13, 2023 by visionaut
Corrected: There’s more than 2 models now..

[visionaut]

One last Q: what do folks think might be  missing from that write-up? (besides pics)

 

— could also include the newer rev-limiting Ignitor III?

— could cover 6V versions?

Edited January 13, 2023 by visionaut

['76mintgrün'02]

I don't think it mentions the 3 ohm requirement.  Apparently, there are multiple versions of Pertronix now and I think one of them is okay with less resistance (but I'm not sure about that).  In situations where the ballast resistor, or wire style resistor ('74-'76) are left in place (black or red coil), it is necessary to provide full 12V to the Pertronix red wire and not simply connect it to the + terminal on the coil (as the article suggests).  When switching to a blue coil with internal resistance, it's important to bypass the stock resistor.

 

That Bristol Tii that just sold on BaT had a blue coil + resistor.  (= wrong).

 

 

Tom

[John76]

Hi Steve,

I recently installed a PerTronix Ignitor II. 

P/N:  91847V for vacuum advance Bosch distributor 0-231-176-059 JFU 4.

The Ignitor II recommends a coil with 0.6 Ohms primary resistance and bypassing any external resistor or resistor wire. 

Easy installation and it sure made a noticeable difference from the stock points/condenser.

Be glad to supply pics. 

John

[visionaut]

Here’s a pic of mine: an original Ignitor, model 1847, fit into my replacement Bosch 2002ti dizzy 0-231-188-002.

 

Pertronix Ignitor = 4 digit part #s - 1843, 1847V, 1847A, etc.

Pertronix Ignitor II = 5 digit part #s, leading 9, then prior 4-digits - 91847V, etc

Pertronix Ignitor III = 5 digit part #s, leading 7, then prior 4 digits - 71847V, etc

 

Back when they only sold Ignitors (before II and III), they only listed two models in their applications for the 02 — the 1843 and the 1847V.

The distinction was whether the Ignitor adapter plate was fixed or adjustable. The 1843 (and 1847A) had an adapter plate with preset ‘air gap’ between the Ignitor module and the magnetic sleeve, and had no module height spacer plate.  The 1847V had both those features - a user settable module height spacer, and a user-settable ‘air gap’ between the module and sleeve.  (.010 - .050”)

 

I’ll note that I went with model 1847V for my install, even though the 1843 was listed as recommended for my mech only dizzy, just to have both those adjustment features.

 

And, here’s the Instructions comment re: the 3 Ohms Coil Primary resistance for the original Ignitor that Tom was referring to:

 

3. Four & Six cylinder engines require a minimum of 3.0 ohms of primary resistance. NOTE: If your Ignition coil has the recommended primary resistance, remove or bypass all external resistors. Do not remove resistors if the coil primary resistance is lower than 3.0 ohms.

 

Edited January 13, 2023 by visionaut
typos...

[PapaG]

19 hours ago, John76 said:

Hi Steve,

I recently installed a PerTronix Ignitor II. 

P/N:  91847V for vacuum advance Bosch distributor 0-231-176-059 JFU 4.

The Ignitor II recommends a coil with 0.6 Ohms primary resistance and bypassing any external resistor or resistor wire. 

Easy installation and it sure made a noticeable difference from the stock points/condenser.

Be glad to supply pics. 

John

John: I'll take you up on photos for this one!

[7502]

I've had this Pertronix II for almost 20 years in my VW, never missed a beat in year round driving.  Also have their "Flamethrower" 3 Ohm coil.

 

 

 

 

[John76]

Attached is my PerTronix Ignitor II wiring sketch and pictures.

Follow the PerTronix installation instructions carefully. If the included spacer is needed, the dust shield will not fit.

Use male spade connectors on the Ignitor leads. This allows the leads to fit through the dizzy hole and grommet.

The only new addition to the wiring is a wire from a switched +12V source...Not through a fuse!

I used the "hot" side of the #3 fuse block since it had a vacant connection point. I ran the new (red) wire through the blue sheathing with the resistor wire, the Black/red wire (to the starter) and the black wire to the speed relay. All other ignition wiring is stock.

Note: You can leave the existing resistor wire attached to the (+) coil. The +12V will follow the path of least resistance (not through the 0.9 Ohm reisistor wire).  The new PerTronix Ignitor II can use any coil with a primary resistance greater than 0.45 Ohms.

Be sure to keep your points/ condenser and the needed screws and tools necessary for a roadside switch if needed.

It should be a quick and easy task since all that's needed is to disconnect the new red wire.

Happy (modern) Motoring,

John

 

 

 

 

 

 

 

 

 

 

[JohnS]

On 1/13/2023 at 2:51 PM, visionaut said:

 

Back when they only sold Ignitors (before II and III), they only listed two models in their applications for the 02 — the 1843 and the 1847V.

 

I always thought that one of them was for Bosch 4-cylinder Distributors with the "Right-hand" style points vs. the "Left-hand" style.  But, I can't remember which is which...

 

EDIT:  I found the article with the info I remembered from Carl Nelson's shop (good read):

 

right hand points = 1847V

left hand points = 1843

 

Distributor Decipherer | La Jolla Independent

WWW.BIMMERDOC.COM

---

Use this information to determine which type of distributor you have on your 4 or 6 cylinder BMW engine.  This will help you understand which type of cap,

 

Edited January 25, 2023 by JohnS

[visionaut]

On 1/24/2023 at 5:45 PM, JohnS said:

right hand points = 1847V

left hand points = 1843

 

Lol.  That might explain the crazy 2002 application chart they had at the time, which was clear as mud...

 

 

 

PS: I looked into the 71847V Ignitor III to use as an upgrade for my existing 1847V in my 188 002 ti replacement dizzy. But found out PerTronix says if you’re using it to fire a CDI ( like my MSD 6A) it’s preferable to use an Ignitor or Ignitor II.  (Boo!)

 

Tom-too

Edited February 7, 2023 by visionaut

[JohnS]

I can confirm...

 

The 0 231 180 013 Distributor used on the 1974tii is a weird bird. 

 

For reference it takes these parts:

 

Weird "left hand" Points Bosch #01012

Condensor Bosch #02102

 

or Pertronix 1843

[JohnS]

My $.02.  Hope it helps

Pertronix Electronic Ignitions for BMW 2002 Bosch Distributor 4-Cylinder

 

The models vary based upon whether your distributor has “right-hand” points vs. “left-hand reverse” points.

1847V, 91847V, 71847V = “right hand”

1843, 91843   = “left hand”

1973 2002tii Bosch Distributor: 0-231-151-008 or 0-231-188-002 (“right-hand”).

1974 2002tii Bosch Distributor:  0-231-180-013 (“left-hand”).