Jump to content

Rev counter


Recommended Posts

Hi Ian


Thank you, I tried that and no response. When I bought the car it flickered at high revs but has never been right. Is there a way to test the signal wire or do I just get a replacement instrument? They are 100 nicka new so would like to find out if this one is definately beyond economical repair.



Link to comment
Share on other sites

Back in the good old days of a contacts breaker fitted in the distributor then you had a live feed wire from the ignition to the coil +ve and a wire from the distributor contactor breaker to the coil -ve.

The rev counter was then feed from both sides of the coil wiring sometimes to a loop of cable on the back of the rev counter now that is old school days before those new fancy electronics were put into our cars.


Link to comment
Share on other sites

Hi Ian it just has vf10cpc120001 as reference nothing to suggest 8 cylinder but that would explain the 50% under read.

I also just have 2 wires connected. A positive supply and the sender to the -ve side of the coil

Link to comment
Share on other sites

Hi Martin I did connect the -ve terminal to the negative terminal on the battery and it didnt seem to work at all then.

The little corcuit diagram on the back doesnt make much sense to me though.

I'm going to try it again though cos that didnt seem to work so I disconnected off battery leaving the other wires connected (sender to coil and +ve supply). Shoved it in the dash and fired engine back up and then it came to life but only at about 50%

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By Sparepart
      During the original (rushed) build I removed the sensor for low engine oil level from the block and tapped a wooden round peg in the round hole. Now, during a rebuild I have more time to consider... should I  properly seal the hole, which kept weeping oil .. or reinstate the oil level warning sensor. To be honest I am thinking that it is not needed and just one more thing to leak or go wrong and I am not sure if it is just a single point sensor or a gradual sensor. So before I throw it away I was wondering if anyone else has fitted/used this sensor and has some experience to share.
    • By GCash
      It might be a long shot but I am after a manifold for my Robin Hood which has a 2.0l Pinto.  At the moment I have an original Sierra manifold but I would prefer one of the Robin Hood Engineering ones.  Has anyone got one that they don't want anymore?
    • By Burney
      I have a smiths speedo is it just the one big cable goes to the back of it or is the spade on the back needed to ground?

    • By raeautos
      Check on preloved website
    • By GCash
      I am looking for some advice please. I have a Robin Hood that is based on a 1988 Ford Sierra.  It is running a 2.0l OHC Pinto with an ESC II module. I was thinking about replacing the standard ignition system with electronic ignition.  I was looking at Accuspark but I am a bit unclear as to what to go for.
      The current system seems to have a ballast coil that takes it feed from the ESC module. The Bosch distributor hasn't got a vacuum advance and takes it feeds from the coil and ESC module which has got a vacuum feed from the manifold.
      Is it better to replace the current ballast coil with a standard coil and give it a feed directly from the ignition rather than the ESC?
      By replacing the points with either a conversion kit or electronic distributor how will it get a feed for the advance if the signal is no longer coming from the ESC?
      I have contacted Accuspark and they just advised their distributors are stand alone and can use either a ballast or standard coil.

  • Create New...