Indicator stalk light - 1970 Traveller - issue

Discuss anything Morris Minor related.
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
Post Reply
Pebbles17
Newbie
Posts: 4
Joined: Sun Jan 12, 2025 4:54 pm
Location: Yorkshire
MMOC Member: Yes

Indicator stalk light - 1970 Traveller - issue

Post by Pebbles17 »

Having finished the front end rebuild I am now refitting all the front lights and trying to get them to work! After much fiddling with poor earths ,lights both front and rear are now operational EXCEPT the stalk warning green flasher light. Well it does work incorrectly in that it flashes in all 3 positions - left, right and off (central)
Any suggestions would help - thanks!
User avatar
King Kenny
Minor Fan
Posts: 416
Joined: Tue Oct 26, 2010 9:01 pm
MMOC Member: No

Re: Indicator stalk light - 1970 Traveller - issue

Post by King Kenny »

The first thing is to check the three wires going to the flasher unit under the bonnet. Ignore the buzzicator wires. I have led bulbs so the flasher unit is led compatible but the connections are the same. Hope it helps.
cccc.jpg
cccc.jpg (79.75 KiB) Viewed 53005 times
1969 Traveller in Almond green. Owned since 1979.
User avatar
svenedin
Minor Legend
Posts: 4789
Joined: Fri Aug 29, 2014 9:27 am
Location: Surrey
MMOC Member: Yes

Re: Indicator stalk light - 1970 Traveller - issue

Post by svenedin »

Are you using a standard thermal Lucas Fl5 flasher unit?

Flasher unit=43 in diagram

LG=light green G=green GN=green/brown
B=battery; P=pilot; L=lamps (load)
On a later flasher unit terminals are sometimes labelled B, P, X=flashed output

Stephen

Screenshot 2026-02-15 at 13.29.46.png
Screenshot 2026-02-15 at 13.29.46.png (166.37 KiB) Viewed 52998 times
1969 1098cc Convertible “Xavier” which I have owned since 1989.

Stephen
ManyMinors
Minor Legend
Posts: 3114
Joined: Tue Nov 11, 2014 9:41 am
MMOC Member: No

Re: Indicator stalk light - 1970 Traveller - issue

Post by ManyMinors »

Assuming you have wired everything correctly, the most likely problem is a faulty flasher unit. For reasons I do not understand, these seem to be highly unreliable now. Very old original units give very little trouble. New, reproduction ones seem to be utter rubbish :-?
User avatar
svenedin
Minor Legend
Posts: 4789
Joined: Fri Aug 29, 2014 9:27 am
Location: Surrey
MMOC Member: Yes

Re: Indicator stalk light - 1970 Traveller - issue

Post by svenedin »

ManyMinors wrote: Sun Feb 15, 2026 8:30 pm Assuming you have wired everything correctly, the most likely problem is a faulty flasher unit. For reasons I do not understand, these seem to be highly unreliable now. Very old original units give very little trouble. New, reproduction ones seem to be utter rubbish :-?
Absolutely agree. I had nothing but trouble with a modern Lucas flasher unit sold as a replacement for the original Lucas FL5 type. It didn't work properly, neither did the replacement. The company that sold it didn't want the unit back so I took it apart and it was electronic inside, not thermal as with the original. I sourced an original Lucas Fl5 and it everything worked exactly as it should.

Stephen
1969 1098cc Convertible “Xavier” which I have owned since 1989.

Stephen
mike1864
Minor Fan
Posts: 430
Joined: Tue May 17, 2011 10:06 pm
Location: Hertfordshire
MMOC Member: Yes

Re: Indicator stalk light - 1970 Traveller - issue

Post by mike1864 »

So the flashers ticks all the time?
Pull the connector off the flasher's P terminal, and report back on how it all behaves.
mike1864
Minor Fan
Posts: 430
Joined: Tue May 17, 2011 10:06 pm
Location: Hertfordshire
MMOC Member: Yes

Re: Indicator stalk light - 1970 Traveller - issue

Post by mike1864 »

King Kenny wrote: Sun Feb 15, 2026 1:26 pm The first thing is to check the three wires going to the flasher unit under the bonnet. Ignore the buzzicator wires. I have led bulbs so the flasher unit is led compatible but the connections are the same. Hope it helps.
cccc.jpg
Being aftermarket - so not (?) a concern for the OP - isn't King Kenny's buzzicator actually connected to to the flasher's P terminal, not the L? If the flasher is expecting a low current (<<42W) load, surely the buzzer in this diagram would trigger it all the time.
Sudden thought: maybe the OP has a buzzer, and it's wired like King Kenny's?
User avatar
geoberni
Minor Maniac
Posts: 5241
Joined: Fri Aug 04, 2017 11:19 am
Location: North Leicestershire
MMOC Member: Yes

Re: Indicator stalk light - 1970 Traveller - issue

Post by geoberni »

mike1864 wrote: Mon Feb 16, 2026 12:58 pm
King Kenny wrote: Sun Feb 15, 2026 1:26 pm The first thing is to check the three wires going to the flasher unit under the bonnet. Ignore the buzzicator wires. I have led bulbs so the flasher unit is led compatible but the connections are the same. Hope it helps.
cccc.jpg
Being aftermarket - so not (?) a concern for the OP - isn't King Kenny's buzzicator actually connected to to the flasher's P terminal, not the L? If the flasher is expecting a low current (<<42W) load, surely the buzzer in this diagram would trigger it all the time.
Sudden thought: maybe the OP has a buzzer, and it's wired like King Kenny's?
You could have a point there. OP says the Tell-tale lamp is flashing without being connected to the Indicators.
Clearly a wrong connection somewhere.
From past experience, there's very likely something else happening that we haven't yet been told about.
We all sit here trying to explain it as though it's 'standard', and then we find out it's not...

Two posts in 2 years... From the title it's a 1970 Traveller but no indication as to whether it's got, or getting, any modifications...
Basil the 1955 series II

Image
Post Reply