Jump to content
BIG STU

Gauges and rev counter not working.

Recommended Posts

Good afternoon  everyone. 

I am hoping that  someone could kindly  help  me out. 

I have just replaced  a couple of  dashboard  bulbs on my 77 sr coupe. 

All the bulbs now light¬† up as and when they¬† should. ūüėÉ

BUT NOW....NO GAUGES WOKING ūüí©ūüí©

But when putting the  ignition  on or starting  the car NONE OF THE GAUGES  ARE WORKING ,PLUS THE REV COUNTER HAS NOW STOPPED WORKING. 

 

Is there a chance I have  killed  the voltage  stabiliser whilst  messing about  in the clocks.

All the fuses are OK. 

As always any help  and support  would be really  appreciated. 

Cheers ūüĎć

 

 

 

Share this post


Link to post
Share on other sites

If you haven't already go back in and check all the connections.

Share this post


Link to post
Share on other sites

Try to remember connections, there is a half moon connector for the rev counter, it can become loose, feed is of coil, light green wire.

There is an electrical strip that feeds the circuit board, 

Cant think of any other connection, its been a while, but i think im missing one. Its pretty easy to swap a dash out of you have a spare, do your self a favour, remove cables from heater controls leavers. 

Q, didnt know the dash has bulbs in circuit board, thought bulbs are only on binacle.

Share this post


Link to post
Share on other sites

Sounds too simple but have you checked the fuses?. If you still have the bullet type, rotate them as they can oxidise.. Then, could you have dislodged either plug to the PC board - the half moon plug or the round main plug?.  Again, possibly slightly oxidised connections - or loosened by pulling sideways on the wiring?  Had you managed to pop the voltage stabiliser, you should still have readings, but unreliable, e.g. fuel reading higher and temperature low.. I take it you were  replacing the warning light bulbs as the instrument light bulbs are on a strip over the top of the panel.. If you replace the warning lig bulbs, it may be best not to use LEDs as they have minimal current draw and so could upset the instrument voltages.

Al just thoughts: hope you come right!

Share this post


Link to post
Share on other sites

Thanks for  your  advice. I will  go back to  it tomorrow. Changed the warning light bulbs.but did disconnect the main plug to give some movement  to get to the bulbs holders..

I know  it's something  simple  but it's really  pissed  me  off.

I shouldn't  have  done it  today. 

Sat in a red hot car ...

Head was up my arse dealing¬† with¬† twisted ex misses causing problems¬† for my little¬† lad.ūüė†ūüė†

 

Thanks  again 

 

Share this post


Link to post
Share on other sites

Hi everyone. 

Just spent  some  time trying to  get my gauges  sorted. 

 

All fuses OK. 

Power to multi plug is all OK and good  earths.

Still no gauges¬† working including¬† rev counter. ūüė≠ūüí©ūüí©

Am I right in saying  that  if the voltage  stabiliser  is knackered  all the gauges including the  rev counter  won't work. 

I hope  so. As that will be  an easy fix. ..

Please can you let me know¬† if iam¬† barking¬† up the right treeūüėČ

 

Cheers Stuart 

 

Has anyone  got a spare  multi plug  and rev counter  plug that I could  buy including  a few inches of  loom for each plug.

As the plugs aren't very tight on the pins on the back of the  instrument  panel  .

Could well be a  shitty  connection. 

 

Just trying to¬† eliminate¬† potential¬† causes as to why gauges aren't¬† working. Cheers ūüė¨

 

 

 

 

Share this post


Link to post
Share on other sites

Had once a broken voltage stabilisator. Everything worked normal but the engine temp. gauge looked too hot and the feul gauge didn't give the right amount.

 

Share this post


Link to post
Share on other sites

This happened on my Cavvy, and it was the voltage stabiliser, I had a bit of a job finding one.

Share this post


Link to post
Share on other sites

Hi Julian. 

I have  bought  one of the modern  replacement ones  off eBay. Fingers crossed. 

Don't know  what it will be like. 

Had about 10 original  ones in my tool box back in the  90s. Got one  or two everytime I  went to the  scrappies. 

 

Had a clear out late 90s before¬† eBay¬† and chucked¬† them all away. ūüė†

Never thought¬† I'd own¬† another ūüėČ

Did your cav  have the rev counter..

Thanks for letting me know. 

Share this post


Link to post
Share on other sites

Had the same problem with my spitfire voltage stabiliser.

found this useful may help someone 

http://www.triumphclub.co.nz/?page_id=962

Worked for me picked up a regulator from maplin when it was here for a couple of pounds.

Probably easier to buy one of these though 

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F283484890348

Share this post


Link to post
Share on other sites

Thanks  buddy. 

That's the one I have  ordered. 

I will let  everyone know  if it cures my problem  and if they are any good. 

Back to the cool stellaūüćļūüćļūüćļūüćļūüćļūüćļ.

Share this post


Link to post
Share on other sites
23 hours ago, BIG STU said:

Hi Julian. 

I have  bought  one of the modern  replacement ones  off eBay. Fingers crossed. 

Don't know  what it will be like. 

Had about 10 original  ones in my tool box back in the  90s. Got one  or two everytime I  went to the  scrappies. 

 

Had a clear out late 90s before¬† eBay¬† and chucked¬† them all away. ūüė†

Never thought¬† I'd own¬† another ūüėČ

Did your cav  have the rev counter..

Thanks for letting me know. 

Yes the cav does have a rev counter.  As for throwing stuff away, we have all done that!!!!  I hope you are sorted by now.

 

23 hours ago, BIG STU said:

Hi Julian. 

I have  bought  one of the modern  replacement ones  off eBay. Fingers crossed. 

Don't know  what it will be like. 

Had about 10 original  ones in my tool box back in the  90s. Got one  or two everytime I  went to the  scrappies. 

 

Had a clear out late 90s before¬† eBay¬† and chucked¬† them all away. ūüė†

Never thought¬† I'd own¬† another ūüėČ

Did your cav  have the rev counter..

Thanks for letting me know. 

 

Share this post


Link to post
Share on other sites

The only things that the voltage  regulator supplies are the fuel and temp gauges. If there is no live coming to the instrument pod then nothing will work except main beam light,or maybee flashers.  it sounds like either a bad connection on the main round plug or you have cracked a track or connection .although I’ve never personally seen or had this happen. .if i were you I would pull the instruments out again and confirm 12 v to plug.make sure pins are clean and not falling out and that the locating peg is correct.

i am very sorry.i used to have the PIN number and wire colour for the taco dash and non taco dash but cannot seem to place my hands on it now !.

basically you are looking for a pin that goes live with ign on..this feeds the voltage regulator,tachometer ,ign lamp oil lamp,handbrake lamp.if you find which pin this is there should be a circuit from the corresponding pin on the back of the instruments to one of the voltage reg terminals and to one of the 3 tachometer terminals.

 

Share this post


Link to post
Share on other sites

I have know it in the past that the Voltage reg earthed out and blew the circut board, might be worth checking

Andy

Share this post


Link to post
Share on other sites

Also double check that the bulbs you have replaced are not faulty,shorted or not fully twisted into position although you did say that all bulbs were now working ok. 

 

Share this post


Link to post
Share on other sites

Hi everyone. 

Thanks for  all your help and support. 

Now sorted and working  fine. 

 

New voltage  stabiliser  arrived  and now fitted  and  all is well  in the world. 

All polished¬† and ready for classic car¬† show in Mawdesley¬† on bank¬† holiday¬† Monday. ūüėÉūüėČ

 

Take care¬† and¬† enjoy¬† your motorsūüėÄ

  • Like 2

Share this post


Link to post
Share on other sites

Good news for a change, great to see it sorted, and 1 happy camper!

Normally a tread is just left, no outcome! But not this one, happy days!

  • Like 1

Share this post


Link to post
Share on other sites

It certainly is. I really appreciate your help and support. Take care and speak to you soon. Cheers Stuart. ūüėČ

Share this post


Link to post
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.

Guest
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.

√ó
√ó
  • Create New...