Lucas 35DE8 Distributor Wiring - Rover V8.
Have an account? Register

Forgot your password?

Forgot your username?

 
Likes Likes:  0
+ Reply to Thread
Results 1 to 9 of 9
  1. #1
    Rods 'n' Sods Junkie fingers's Avatar
    Join Date
    Mar 2010
    Location
    Rivenhall, Essex
    Posts
    496
    Images
    64
    Post Thanks / Like
    fingers is offline

    Lucas 35DE8 Distributor Wiring - Rover V8.

    Afternoon all.

    My Rover V8 is using a Lucal 35DE8 Distributor and the stupid big and stupid expensive ballast resistor failed. Rather than spend £110 on a new resistor (yes they really are that expensive. Ballast Resistor 9BR for vintage & classic cars) I thought I would see if it could be made to run on a normal 1.6 Ohm resistor? And it can! Ignition re-wired with a normal ballast resistor and she bursts to life with a quick flick of the key .

    For those who may find themselves in the same scenario, the proper way to wire it in with the lucas 9BR resistor,



    And my way,



    I love it when a plan comes together .
    Last edited by fingers; 09-03-2015 at 17:53.

  2. Remove Advertisements
    RodsnSods.co.uk
    Advertisements
     

  3. #2
    Official RnS Addict mygasser's Avatar
    Join Date
    Dec 2009
    Location
    faversham, kent
    Posts
    12,799
    Images
    514
    Post Thanks / Like
    mygasser is offline
    so looking at your diagram you could just use a 12v non ballast coil and connect the 2 wires from the dizzy to each side of the coil, red/blk to +ve side/ign live and wh/blk to -ve side/tacho'. cool.
    need a job done on your project? i may be able to help.

  4. #3
    Rods 'n' Sods Junkie DEVONMAN's Avatar
    Join Date
    Oct 2010
    Location
    Croydon
    Posts
    378
    Images
    7
    Post Thanks / Like
    DEVONMAN is offline
    Quote Originally Posted by mygasser View Post
    so looking at your diagram you could just use a 12v non ballast coil and connect the 2 wires from the dizzy to each side of the coil, red/blk to +ve side/ign live and wh/blk to -ve side/tacho'. cool.
    But you would then loose the benefit of the enhanced spark during cranking.

  5. Remove Advertisements
    RodsnSods.co.uk
    Advertisements
     

  6. #4
    Official RnS Addict mygasser's Avatar
    Join Date
    Dec 2009
    Location
    faversham, kent
    Posts
    12,799
    Images
    514
    Post Thanks / Like
    mygasser is offline
    not if you had a decent 12v coil
    need a job done on your project? i may be able to help.

  7. #5
    Rods 'n' Sods Junkie DEVONMAN's Avatar
    Join Date
    Oct 2010
    Location
    Croydon
    Posts
    378
    Images
    7
    Post Thanks / Like
    DEVONMAN is offline
    Quote Originally Posted by mygasser View Post
    not if you had a decent 12v coil
    Which 12v coil would you recommend for a Rover with a 35DE8 dizzy running without a ballast resistor?

  8. #6
    Rods 'n' Sods Junkie fingers's Avatar
    Join Date
    Mar 2010
    Location
    Rivenhall, Essex
    Posts
    496
    Images
    64
    Post Thanks / Like
    fingers is offline
    I would imagine any internally ballasted coil would work?

    This system if wired in using the Lucas resistor pack is ballasted by 1 ohm when cranking anyway, and being electronig IGN will probably start without the 12v kick while cranking. I will pull the starter feed from mine at the weekend and she how she fires from cold with constant 1.6 ohm ballast?

  9. #7
    Official RnS Addict brading's Avatar
    Join Date
    Sep 2011
    Location
    Kings Lynn
    Posts
    2,960
    Images
    365
    Post Thanks / Like
    brading is online now
    Have a look on this site they have a range of coils

    Ignition Accessories

  10. #8
    Official RnS Addict brading's Avatar
    Join Date
    Sep 2011
    Location
    Kings Lynn
    Posts
    2,960
    Images
    365
    Post Thanks / Like
    brading is online now
    Have a look on this site they have a range of coils

    Ignition Accessories

  11. #9
    Official RnS Addict mygasser's Avatar
    Join Date
    Dec 2009
    Location
    faversham, kent
    Posts
    12,799
    Images
    514
    Post Thanks / Like
    mygasser is offline
    ballasted coils were made to reduce the voltage at the points so lessening the arc which extended points life. the full 12v that bypassed the ballast resistor gave a 'kick' when starting. as you can see from both of your diagrams the module in the dizzy is fed 12v via the red/blk wire all the time. so it's only the ht side that's boosted on crank when using a ballasted coil with electronic ignition. the normally 9v coil that's fed it's 9v via the resistor gets a full 12v when cranking by bypassing the resistor making the coil give a bigger spark for that short time. stock coils (ballasted and 12v) were 20,000v at best on the ht side, there are 12v coils available now that give up to 3 times that so are fine on there own.
    need a job done on your project? i may be able to help.

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Where you live, Town\City\County etc.

Please enter your full name
This field cannot be edited once it has been completed other than via contacting the site admin. Please make sure the information is correct first time.

Log-in

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Similar Threads

    1. Wiring Help with Lucas Alternator
      By Bigdawgv8 in forum Tech Discussion
      Replies: 1
      Last Post: 22-09-2014, 22:08
    2. Wiring an Autometer Rev counter ?
      By Tarmac Tanner in forum Tech Discussion
      Replies: 4
      Last Post: 28-09-2009, 16:39
    3. Wiring loom
      By highlandrodder in forum Tech Discussion
      Replies: 5
      Last Post: 27-07-2009, 22:34
    4. wiring w/motor
      By Chitty in forum Tech Discussion
      Replies: 0
      Last Post: 09-07-2009, 14:11
    5. indicator wiring problem!
      By sqweaka in forum Tech Discussion
      Replies: 12
      Last Post: 21-06-2009, 18:41

    Bookmarks

    Posting Permissions

    • You may post new threads
    • You may post replies
    • You may not post attachments
    • You may not edit your posts
    •