Jump to content
Forum software update now live Read more... ×
Sign in to follow this  
Tom Fremont

Voltage Stabilizer

Recommended Posts

What is the failure mode on these?

 

My fuel and temp gauges pegged themselves ( to the high end ) today, correcting themselves after some time. What else could be the culprit?

 

Cheers,

Tom

Share this post


Link to post
Share on other sites

Normally to test the fuel gauge is working, is take off the wire at the sender and touch it to earth, the gauge should rise to read full.

To test the voltage stabiliser you would need an analogue tester, as the stabiliser gets 12 volts it works a bit like a flasher unit, opening and closing and so actually sends out only 10 volts, you can only see this best with an analogue tester.

Hope that helps?

John

Share this post


Link to post
Share on other sites

Thanks, John. Since both gauges returned to their correct positions simultaneously, twice today, I'm ruling them out. Just fishing to see if anyone else has had this happen; first time for me in 45 years of continuous TR ownership!

 

Tom

Share this post


Link to post
Share on other sites

If both gauges did it, that is pretty conclusive. Could be a bad ground on the stabiliser or a faulty unit.

Share this post


Link to post
Share on other sites

If the gauges end stopped I suspect that the contacts in the regulator stuck closed for a time. It will probably happen again.

Share this post


Link to post
Share on other sites

Try a brand new voltage regulator. As its new it must be better .... what could go wrong?😬

Share this post


Link to post
Share on other sites

What is the failure mode on these?

My fuel and temp gauges pegged themselves ( to the high end ) today, correcting themselves after some time. What else could be the culprit?

Cheers,

Tom

Hi

With the Voltage Stabiliser remove I found the temp gauge when right over to high, do not know about the fuel gauge as was to worry about the temp untill i work out what was wrong. With the voltage stabiliser back all was OK and my car a TR250.

Peter

Share this post


Link to post
Share on other sites

Thanks all; I'll look through my collection and fit a spare if I don't find any grounding issues ( as I likely won't ).

 

Cheers,

Tom

Share this post


Link to post
Share on other sites

Tom

Is your stabiliser still in the speedo, so the earth will be on the thumb screws that hold the gauge in. The PO of mine has relocated it to the bar just under the knee pads.

John

Share this post


Link to post
Share on other sites

Hi gents,

 

Replacing the suspect stabilizer with another used one seems to have cured it - but I can't rule out the grounding issue with the knurled nuts which hold the gauge into the fascia; maybe I tightened it more when going back together.

 

Anyhow, both gauges now read an eight of an inch higher than they did with the previous stabilizer :unsure: which held steady for the 16 years I've had the car until pegging last week .

 

Cheers,

Tom

Share this post


Link to post
Share on other sites

Hi Tom,

So you made some petrol!

Cheers,

Waldi

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×