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    Coil

    Hi, Can someone very kindly explain in laymens terms how I can test a coil as to whether it is working and serviceable.....also could I test the petronix module.... it started to smoke , dont know why??? I bought it from the Doctor.
    Cheers

    #2
    Coils are not that easy to test unless they are open circuit or shorted. Usually they begin to break down under heat & load.
    Electronic equipment where the smoke has escaped are usually scrap.

    Comment


      #3
      Originally posted by jbuckl View Post
      Coils are not that easy to test unless they are open circuit or shorted. Usually they begin to break down under heat & load.
      Electronic equipment where the smoke has escaped are usually scrap.
      So in the bin goes another product I paid top dollar, the Distributor General Practitioner, Quack, Healer, physician's (Roget's Thesaurus) Petronix...they are a nice company to do business with, top seller, nice reliable products, very fast delivery, jolly good show what, etc, etc, etc.



      Any recommendations for electronic ignition? I will need it to get Stag Started,
      I have a !uminition amplifier and wiring in the kitchen drawer but it needs the magnet and rotor........where could I get these, anyone have spares lying about??

      ooohh yes, yes, yes almost forgot, the new Bosch Red going in the Bin as well, dont work. I think I will have to save up and get the Flamethrower which I have had on the Red Stag for donkeys years its still going strong.

      With a cheapo electronic ignition which is still going strong since I fitted it
      About 8 years ago...cant remembet the name and the lettering has faded otherwise I would buy that.


      Last edited by singapore stag; 28 September 2021, 01:43.

      Comment


        #4
        Strange that so many of us have had no problems with Bosch Red coils, Pertronix ignition or any products/service from the Distributor Doctor. Maybe the problem is closer to home.
        Dave
        1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.

        Comment


          #5
          Pertronix coil cooker !

          Comment


            #6
            When you install the ignition coil you are sure that it is NOT resting on the cylinder block in the engine v? Any ignition coil needs air around it else it will overheat very quickly indeed.

            You can test a coil quickly and easily using a multimeter, however it will not show that the coil is starting to breakdown and perform badly.

            Easiest way though is to attach your timing strob to the king lead and crank the engine over. should get lots of flashes.

            Smoking pertronix, hmmmm not so sure here! did you wire black to negative and red to 12v positive? I thought also the pertronix needed to work with a flamethrower coil, that wouldn't have caused it to smoke though.

            Is this from the same car that had the fuse box issues? maybe the white wires in the loom are damaged and have gone high resistance - show 12v but when under load this will drop significantly. A tail light bulb in it's fitting with a couple of wires is a much more useful tool than a multimeter to detect resistance issues
            Stags and Range Rover Classics - I must be a loony

            Comment


              #7
              Hm burnt fuse box, coil, ignition, etc, there is a common denominator here. Suggest that you seek out a qualified auto electrician as a Stag on fire is not good and insurance may be void if they find out DIY works on electrics done by someone without knowledge and skills to do this work.
              Dave.
              Expert:- Ex is something that has been and spurt is a drip under pressure.

              Comment


                #8
                Originally posted by fussydave View Post
                Hm burnt fuse box, coil, ignition, etc, there is a common denominator here. Suggest that you seek out a qualified auto electrician as a Stag on fire is not good and insurance may be void if they find out DIY works on electrics done by someone without knowledge and skills to do this work.
                Fair comment.....the fuse box is sorted now. The Petronix is not the Petronix 2 but the normal one which has a tendency to die when the ignition is left on...whether a short time or long or regularly. The coil issue is more likely overheating as some of the label has faded as if by heat. Not tested yet so could still be ok.


                Lastly I want help or advice which I have been happily getting for over 12-13 years on this forum from experienced owners and good friends I have made over the years.

                Not criticism and slagging off and being made to look stupid. I have worked and bought my Stags up to really good standard by all the help I got on this forum.

                Lately if I have been asking questions that I should be already aware of and know the answer to ........then I apologise....... I am still recovering from 2018 when I contracted E.Coli and Meningitis in Indonesia. The only reason I did not suffer serious side effects according to the specualists was because of my fitness ( regular gym user and jogger ) but my memory has started to come back to normal after 2 years..........End of Sob Story.

                Comment


                  #9
                  Advice was given, have an auto electrician look at it to prevent a nasty fire. Slagging off? Suggest you look back at the companies and products you have given negative comments to, fuse box supplier, Distributor Doctor, Petronix, Bosch. I am not the only one who has made the observation that there may be a common denominator.
                  Dave.
                  Expert:- Ex is something that has been and spurt is a drip under pressure.

                  Comment


                    #10
                    How do you know that I have NOT had an Auto electrician looked at the wiring??? You don't do you..... and why should I give a positive to a negative?
                    Look back to the 2009 till now.....how many times have I made a negative comment about a trader? If thats what you deem when a product goes wrong, negative.
                    I never ask for my money back! They can wallow in it for all I care.
                    And if any do not like so called negative comments to traders then I ask ......are they in cahoots??

                    End of......please only reply if you can help me get my Stag back on the road. When I am well enough I wil merrily carry on by myself like before.
                    Kindest of regards,
                    Last edited by singapore stag; 28 September 2021, 16:10.

                    Comment


                      #11
                      Originally posted by fussydave View Post
                      Advice was given, have an auto electrician look at it to prevent a nasty fire. Slagging off? Suggest you look back at the companies and products you have given negative comments to, fuse box supplier, Distributor Doctor, Petronix, Bosch. I am not the only one who has made the observation that there may be a common denominator.
                      A bit harsh.

                      Comment


                        #12
                        Originally posted by KOY 23 View Post

                        A bit harsh.
                        Thanks John, don't worry its the stress and anxiety in todays society that warrants peoples attitudes. Like the bookies and casinos .... only the house wins. Sellers only sell ......period.

                        Comment


                          #13
                          Originally posted by KOY 23 View Post

                          A bit harsh.
                          Harsh? Advice was given to sort out electrical issues. Too many times products and services are given a bad review when miss use/incorrect installation is often the cause of the problem. From this and other posts the OP has made recently, he does not appear to me to be overly competent with electrics and one has to wonder if smoking electronics/electrics is caused by incorrect installation. As to whether an auto electrician has been consulted, no I wouldn't know that information as it has not been mentioned hence the advice I gave to consult one. By the way I have no connection with any of the companies/products mentioned so am not in cahoots with any of them. My concern is for the safety of the OP and other road users who may be affected should an electrical fault cause a major event.
                          Dave.
                          Expert:- Ex is something that has been and spurt is a drip under pressure.

                          Comment


                            #14
                            " My concern is for the safety of the OP and other road users who may be affected should an electrical fault cause a major event."

                            What a righteous and caring person! Perhaps my Stag and I should be banned from the roads just in case a major event ( more serious than the day of the Triffids) should occur.

                            Comment

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