• Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

Electrical problem with flasher relay?

John_Progess

Jedi Warrior
Country flag
Offline
In checking out the electronics on the restoration my left front indicator light does not flash. The bulb is ok as I have put 12 volts to the wire and the filament works. Also the lights all work using the light switch. The right side flashes ok as does the left side rear. Does this mean that the flasher relay contact number 2 that goes to the left front light is not making contact? The relay is working as I can see it move. Thanks and have a good day!
 

TimK

Jedi Knight
Silver
Country flag
Offline
Given your facts, I'd agree with your conclusion. Have you tried bridging the contacts with a screwdriver?
 

GregW

Yoda
Platinum
Country flag
Offline
Hi John,
Page N15 of the shop manual has a guide to set the airgaps of the relay. You might want to give that a try.
 
OP
J

John_Progess

Jedi Warrior
Country flag
Offline
I did bridge the contacts with a tester and noticed that if I pushed the relay down normally it did not make contact but if I pushed it down hard it would make contact so this told me the gap was too great. I reduced the gap and now it works fine. I was having nightmares thinking about getting the realy out of the car with the air duct in the way. Luckly I won't have to at least for now. I am going to check out the manual for the gap measurements for the future. Thanks for your help and have a good day!

John
 

TodE

Jedi Hopeful
Offline
I am having some problems also. 1962 BT7. Went to get car inspected today had to wait in line with 6 cars ahead of me. Car got a little hotter than normal up to 190-195F. When I got to the inspector the left side worked, right side did not! FAIL!! When I got home I checked the bulb, it was OK. Turned the key on, left side worked, right worked, but right side flashed dim and faster until it would not flash at all.Is my problem a hot flasher unit, bad wiring, or failing flasher unit??

Thank you for all your help,
Tod
 

GregW

Yoda
Platinum
Country flag
Offline
Hi Tod,
One thing you could try is switching the turn signal wires at the flasher relay. It looks like it's 2 to 6 and 3 to 7. If the problem goes to the other side, I'd think it was a problem with the relay. If the blinking problem stays on the same side, look for some bad connections in the right side wiring.
 

Keoke

Great Pumpkin
Country flag
Offline
Yes I think perhaps a bad ground at the lamp assy may be your. problem
 

bob hughes

Luke Skywalker
Country flag
Offline
I had a similar problem - intermittent operation. My solution was to remove all terminals from the relay unit and clean up the unit, clean up the terminals and replace all with a little coating of vaseline jelly - no problems since

Bob Chance

Bob
 

TodE

Jedi Hopeful
Offline
My problem was the expensive flasher unit. I swapped out one from my 100-4 and it worked fine! Now I am short one! Does anybody rebuild these, or is it cheaper (How can that be!) to buy a new one?

:driving:

Thank you!
 

Johnny

Darth Vader
Country flag
Offline
For all with relay problems you should be able to find the article in the WIKI. I wrote that article several years ago and I hope it got transferred to the current version. I explained how with photos and proper gaps shown. It really isn't as difficult as it may look. I used a spark plug gapping tool and a set of feeler gauges. It is important to follow the sequence shown. I'll send the article to you personally if you'll give me your email address.
 

GregW

Yoda
Platinum
Country flag
Offline
Hi Johnny,
I don't think it was ever in the WIKI. I did find it in the old knowledge base though. Click HERE for the link.
 
Similar threads
Thread starter Title Forum Replies Date
K TR2/3/3A Another electrical problem: Park light & 5ignal light on Drivers side are brighter than....... Triumph 3
P TR6 Electrical Problem Triumph 26
M Difficult Electrical Problem in 59 BE with Generator Spridgets 6
B TR2/3/3A Electrical Problem Triumph 13
H Electrical problem I need to solve Spridgets 7
B TR2/3/3A Another Electrical Problem Triumph 2
Gerry M TR6 Another electrical problem Triumph 1
J TR6 Electrical ignition problem Triumph 9
5 TR2/3/3A TR3 electrical problem ignition or generator??? Triumph 12
B Electrical problem British Motor Corp 4
6 Electrical problem Austin Healey 10
D Coil and/or Tach Electrical Problem MG 8
Anthony_S Electrical problem Triumph 12
T TR6 Electrical Problem with TR6 Triumph 11
bigjones Interesting electrical problem Spridgets 9
1 Electrical/guage problem MG 8
kyreb1862 MGB 77 MGB Electrical Problem MG 16
kyreb1862 Electrical System Problem Need Help ASAP MG 7
scott_74 Electrical Problem Spridgets 20
Got_All_4 TR2/3/3A TR3A Electrical and Missing Problem Triumph 8
M TR2/3/3A TR3 A Electrical problem Triumph 8
Thor How to troubleshoot this electrical problem Spridgets 14
A Electrical Problem Austin Healey 8
jjbunn Electrical problem: car wont start Triumph 23
J T-Series Electrical Problem: headlight switch turns starter MG 28
B Electrical problem / Fuel octane MG 12
G Spitfire Help with Spitfire electrical problem Triumph 13
hondo402000 TR6 TR6 electrical problem continue Triumph 23
hondo402000 TR6 TR6 towed on Sat night, electrical problem Triumph 9
1 Help on a bad problem, electrical, fuel? MG 12
Monark192 Solution to electrical problem MG 8
RSMTR8 Wedge TR8 Headlight/Electrical Problem Triumph 11
kyreb1862 Got a Whole New Electrical Problem MG 10
C electrical problem MG 2
Lin Electrical Problem Spridgets 5
Lin Electrical problem Austin Healey 6
Russ Austin Electrical Problem Triumph 4
mgbmedic Electrical Problem MG 7
T Electrical Problem MG 10
TR6Stuart TR6 TR6 Electrical Problem Triumph 10
Y Electrical Problem MG 10
D Electrical problem [imagine that] Spridgets 9
CARSINC Sprite Electrical System Information Spridgets 2
K TR2/3/3A Turn signal flasher issue.....electrical is not my strong point. Triumph 13
R Electrical Experts - Vixen 2500 - Ignition Switch Observation? TVR 10
N MGB Electrical Part Identification MG 3
KVH General Tech Yes, the Horns Again--Electrical TR4A Triumph 8
SNClocks Electrical Wire Lug Spridgets 2
F General TR Electrical parts Triumph 6
S TR2/3/3A Electrical Triumph 31

Similar threads

Top