Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
Hello to all those who are now on the streets.....what symptoms does one see with a faulty or dead voltage regulator?I suspect it in causing a short circuit and causing the fuse to melt,which allows the car to run just fine,sans the little things like overdrive,fuel and temp guages and,oh yes,turn signals......all of these are fed through the same circuit.The vehicle can be running with no apparent problem,the steering goes lock-to-lock without causing the fuse failure.Attempts to drive more than a mile without fuse failure have proved nil.........
-
Hey Guest!
British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!**Upgrade Now**
(PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
TR6 How does one test the voltage regulator in th late TR6?
- Thread starter rdr952
- Start date
Share this page
Offline
Check battery voltage while engine off. Then check battery voltage while running. If 12+ volts off and 13+ running , regulator fine. Something in that specific circuit is overloading fuse or shorting out. Unplug various items and see if fuse still blows. Or get a short tester from HF or auto parts store and start probing systems.
TR3driver
Great Pumpkin - R.I.P
Offline
Practically impossible to be caused by the voltage regulator; unless the battery also is toast. Even then, I'd say it is much more likely that you have a short (perhaps intermittent) some place.
BTW, you might want to try something like this
It's a circuit breaker that plugs in place of the fuse, giving you a chance to trouble-shoot without having to replace the fuse every mile.
Another trick that works well sometimes is to temporarily wire an old headlight bulb in place of the fuse. The bulb will pass enough current to power some things (tho probably not wipers and not everything at once), but light brightly (and harmlessly) when the short happens.