Jump to content


Photo
- - - - -

What Coil For Electronic Distributors (65Dm4) ?

engine electrical

  • Please log in to reply
21 replies to this topic

#16 ACDodd

ACDodd

    Up Into Fourth

  • Mini Docs
  • PipPipPipPipPipPipPipPipPip
  • 2,835 posts

Posted 08 January 2021 - 10:07 AM

Ethel, a new GCL 143 has 0.9ohm. Don’t use it.

Use a coil with 1.5ohms of primary resistance and no ballast resistor, with the 65d dizzy.

Ac

Edited by ACDodd, 08 January 2021 - 10:07 AM.


#17 Dusky

Dusky

    Crazy About Mini's

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 5,322 posts
  • Location: Belgium

Posted 08 January 2021 - 11:19 AM

For people looking for a 1,5 Ohm coil;
If you can find Bosch 0221102082 you’re golden.
Might be under F000ZS0027 depending on where you live.
Beru ZS563 might work too, these I measure at 1.7 ohms supposed to be a direct replacement for the Bosch but they measure a tad higher in resistance. If your local shop has stock, measure first.

#18 ACDodd

ACDodd

    Up Into Fourth

  • Mini Docs
  • PipPipPipPipPipPipPipPipPip
  • 2,835 posts

Posted 08 January 2021 - 11:46 AM

Thats the key dusky measuring is key.

Ac

#19 KernowCooper

KernowCooper

    Sparkie

  • Mini Docs
  • PipPipPipPipPipPipPipPipPipPip
  • 7,847 posts
  • Name: Dave
  • Location: The South West
  • Local Club: Kernow Mini Club

Posted 13 January 2021 - 10:19 PM

Yes rover list 0.78ohms. The point is if you run this on the coils and modules now you will have problems
. I have been fitting the 1.5 ohm coils for years and the system and coils are more reliable.

The quality of the parts nowadays is very poor compared to much more expensive original equipment


Ac

You can say that one again AC, quality is very poor on lots of components



#20 Mini Manannán

Mini Manannán

    Well I'll be buggered if I can find it

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 2,860 posts
  • Location: Middle of the Irish Sea
  • Local Club: man Estate

Posted 28 September 2022 - 10:30 AM

After reading this thread I got myself a 1.5ohm coil.Instant improvement, pulling better from low revs but a tiny bit more reluctant to start which I'm happy to live with.

#21 Aindrid

Aindrid

    Starting My Mini Up

  • Noobies
  • Pip
  • 4 posts
  • Location: Rockledge

Posted 15 November 2025 - 02:59 PM

per a recent youtube video, I posted a question of 1.5 ohm vs 0.8 ohm for an original 65D, and AC replied with 0.8 ohm. Seems like perhaps he found the Viper coils dont cause issues and are of good quality, so new suggestion is 0.8 ohm with a 65D.

 



#22 ACDodd

ACDodd

    Up Into Fourth

  • Mini Docs
  • PipPipPipPipPipPipPipPipPip
  • 2,835 posts

Posted 19 April 2026 - 01:55 PM

Update to this post; use a 0.8ohm coil with the 65d dizzy. Use no ballast resistor. This is a variable dwell unit and does not need a ballast to run the 0.8ohm coil. Run with 0.035" plug gaps on normally aspirated applications.

Ac





Also tagged with one or more of these keywords: engine, electrical

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users