Fabrication of Spark plug testing machine

This is a simple mechanical engineering project which can be executed at low cost.


A Spark plug tester essentially consists of a metallic portion followed by something that looks almost similar to a Spark Plug and a connecting port in a tubular arrangement.

Fabrication of Spark plug testing machine

What does the tester do?

The Spark plug tester performs the following functions to check the proper working of the Spark plug.

1. Checks if the Spark plug is accepting current from the wires that go to the spark plug.

2. Proper firing of the Spark plug

The main idea of using a spark plug tester is to avoid the removal of the spark plug and testing it. This leads to saving valuable time.

How does it perform the above functions?

a)     Testing the wires:

At first, disconnect the wires from the spark plug which you wish to test. Place the wire to the end of the tester. The tester is then clamped to the engine block. This grounds the unit and allows the flow of charge through it. With that done, you should fire up the engine and keep an eye on the end of the spark plug tester for sparks. If sparks are visible, then the wires are working fine.

b)    Testing the Spark plug firing:

The long end of the spark plug tester is inserted onto the spark plug. The other end of the spark plug tester is plugged into the boot on the spark plug wire. Fire up the engine and look for spark in the window of the tester.


Testing the spark plug is simple but you should make sure it is done the right way so as to not hurt yourself in the process.


Spark Plug Testing Apparatus


34 thoughts on “Fabrication of Spark plug testing machine”

  1. Vijay Reply
    December 27, 2017

    I want more information about this ..pls send me ..

  2. sudheesh kumar Reply
    October 7, 2016

    plz sent more details

  3. V darahas Reply
    June 10, 2016

    I’m very much interested in this ,I want the start up details so I can be confident.in doing it , could you mail me the components required and how to start from beginning

  4. kuldeep dubey Reply
    April 2, 2015

    details regarding fabrication of thi.

  5. Tejaswini Reply
    February 23, 2015

    i wan’t to know more about this pls send me more information about this project.

  6. Chirag Aggarwal Reply
    August 20, 2013

    Please send me some more information on this project.

  7. yakson Reply
    November 12, 2012

    Pls I really need the full detail n specifications of this project

  8. karthik N S Reply
    November 7, 2012

    plz send me the details now only..

  9. chinnasami Reply
    September 9, 2012

    i want this project in very explaination

  10. Bhavana Reply
    August 5, 2012

    its really nice and i want d full details.plz mail me d details of this project………..

  11. Nikhil Reply
    July 25, 2012

    Please send me project report so as to clarify the project idea

  12. Monday Reply
    June 24, 2012

    Please, send me the details of this spark plug tester project so that i can try it for my final year project. Very urgent please!!

  13. Vaibhav Rooge Reply
    February 29, 2012

    As i am in my final year of engineering,shortly i am going to start my work towards project,so I will be very much thankful to you if you send me further details of this topic to my e mail id,thank you.

  14. arumuga selvan Reply
    December 27, 2011

    its a nice project can u provide further details of cost and how to make it through my mail id?

  15. piramanayagam Reply
    December 26, 2011

    plz send full details of this project……..as i am doing project in this semester…it will much useful to me

  16. Buhari Aliyu Muhd Reply
    December 3, 2011

    It is really interesting, mechanical engineering is extremely wide and interesting hence it becomes so complicated as compared to any field of engineering.In addition to this,very soon i am starting my project,so i need some guidence, thank

  17. manimaran.s Reply
    November 28, 2011


  18. Brainz Reply
    October 31, 2011

    Hello. A very interesting device this is. Please could you send details of its construction to me. I appreciate your attention in advance.

  19. cbrainz Reply
    October 24, 2011

    i like this,pls will u mind sending me the details? I would like to work on it soonest. Thanx

  20. vinay Reply
    October 17, 2011

    please send some more details about this project and also cost of this!

  21. Nitish jain Reply
    September 15, 2011

    Sir i want to do my final yr project, so it would be nice if i get the details…

  22. sachit kashyap Reply
    September 3, 2011

    hello sir,
    this is very interesting kindly send me all the information for doing this as my major project………
    and this site is very very helpfull for the growing engineears.thanks a lot

  23. Rahul Rabade Reply
    September 1, 2011

    hello sir,
    this is very interesting kindly send me all the information for doing this as my major project………

  24. vijay Reply
    August 14, 2011

    hi it was simply superb

  25. Darshak D Reply
    July 29, 2011

    Thanks for the very useful project ideas. Plz kindly send me full details I need project work very very urgent

  26. Okozi Christopher Reply
    May 30, 2011

    pls, i need the full details for this project urgently as i am supposed to defend my project next week. I will be very grateful if it can be send within the next 3 days to enable me prepare my report. Thanks alot for your help.

  27. Mike kahia Reply
    April 21, 2011

    I would wish to purchase a sparkplug test.
    Please give a quote.
    For use in Nairobi, Kenya.

  28. Higher than kings! Reply
    March 30, 2011

    Thanks for the very useful project ideas. Plz kindly send me full details I need project work very very urgent

  29. Ravikiran.v.chinchankar Reply
    February 10, 2011

    Its nice to have spark plug tester,because i have experienced shocks,generated in the process of testing the spark plug when it gets shorted or coated with carbon…i request to send me the details of the spark plug tester…

  30. mechengg Reply
    January 28, 2011

    plz mail me d details

  31. Veeresh Reply
    January 24, 2011

    Please give me the full details like inner parts of the machine,cost estimation.. and so on…

  32. Form Script Reply
    October 5, 2010

    last week our group held a similar discussion on this topic and you illustrate something we haven’t covered yet, appreciate that.

    – Laura

  33. pell grant Reply
    August 4, 2010

    found your site on del.icio.us today and really liked it.. i bookmarked it and will be back to check it out some more later

  34. nshostko Reply
    July 30, 2010

    it was very interesting to read http://www.mechanicalengineeringprojects.net
    I want to quote your post in my blog. It can?
    And you et an account on Twitter?

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