• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)

TR2/3/3A tr3 turn indicator


Country flag
Hi all I am have trouble with my tr3 turn indicator not cancelling. I must have put it together wrong. The last time I had it apart I think I might have put the back piece off 180. I did look at a diagram and I think I followed it, but it was for an MGA. Anyways could someone please elaborate on how the canceller operates?


Darth Vader
Does the control head rotate with the steering wheel or stay atationary when the wheel is turned?

It should stay stationary.


Great Pumpkin - R.I.P
When you install the control head, the steering wheel should be in the straight-ahead position, the turn lever should be up and the cancelling tab(visible on the right below) should be straight down. Slide the head into position, then tighten the gland nut on the steering box, and the 3 grub screws on the wheel, without turning anything.


Of course there could be other things wrong. I managed to install the cancelling pushrods backwards last time, so mine doesn't cancel either. Here's the "before" shot, showing the correct orientation:


Someday, maybe, I'll go back and do it right, maybe even finish writing the article. :laugh:


Country flag
Thanks you guys for your comments. The tube is tight with the nut and olive, and I think I put the back on just like that Randall. I might have put the rods in wrong too Randall. The wheel is not exactly straight yet would that make a big difference? I did fix the front alignment and that made big difference.I will have to post a thank you to Banjo and Randall for their suggetions.


Jedi Knight
Country flag
Aloha Steve,

A thing to remember is the self canceling mechanism was made for a car to driven on two lane roads mostly. I find that unless you are making a sharp 90 degree turn, the self canceling does not work. A sweeping turn through a multi-lane intersection doesn't set the mechanism.


Great Pumpkin - R.I.P
For the switch to cancel, the wheel has to turn far enough into the turn to move the hump in the cancelling ring past the pushrod, then then far enough back the opposite direction for the hump to push the pushrod up and lift the roller out of the hole. If the wheel and cancelling ring are not lined up, then one or both of those things may not happen, resulting in no cancelling.

To find out, you can try turning the wheel a full turn towards the turn, then a full turn in the opposite direction. If that allows the switch to cancel, then the ring is probably not lined up.


Freshman Member
Steve,I had come across this document sometime ago. It may be of help to you.



  • 24460.pdf
    56.1 KB · Views: 720


Country flag
Cool...I didn't know my TR had a canceller...I have something else to fix now!!

Member 10617

When I purchased my car, it had the original turn indicator, and it would not cancel. I had a new horn button and turn indicator installed about 9 months ago and, guess what, the new one would not cancel. After fussing with it for a while, I discovered -- as Dave points out -- that it will not cancel unless I make a very sharp, 90 degree turn. Then, and only then, does it cancel. Perhaps it can be adjusted, but I have resigned myself to simply canceling it manually.
Similar threads
Thread starter Title Forum Replies Date
Kleykamp TR2/3/3A 1961 TR3 turn indicator diagnosis? Triumph 4
A TR2/3/3A TR3 turn indicator not flashing in car Triumph 8
P TR2/3/3A TR3 turn signal and horn control wiring check Triumph 4
J TR2/3/3A TR3 turn signal issue Triumph 12
C TR2/3/3A TR3 Turn Signal Lever Triumph 3
O TR2/3/3A TR3 Rear Turn lights Versus Rear Stop Tail lights? Triumph 5
O TR2/3/3A TR3 Turn Signal Lights Install Triumph 1
O TR2/3/3A TR3 Turn Signal Retrofit / Windshield Screws? Triumph 7
Brooklands TR2/3/3A TR3 Turn Signal question... Triumph 6
J TR2/3/3A TR3 Too Rich- What direction do I turn the nut? Triumph 3
J TR2/3/3A TR3 right turn signal not working Triumph 15
Moseso TR2/3/3A TR3 Brake/Turn Lighting Improvement Discussion Triumph 12
tinman58 TR2/3/3A TR3 Turn signal Triumph 3
T TR2/3/3A turn signal repair tr3 Triumph 2
CraigLandrum TR2/3/3A TR3 Turn signal note Triumph 6
newmexTR3 TR2/3/3A TR3 turn signal return mechanism? Triumph 31
E TR2/3/3A stubborn TR3 turn signal wires Triumph 7
F TR2/3/3A TR3 Turn Signal/Horn control head Triumph 4
M TR2/3/3A TR3 turn signal replacement Triumph 2
S TR2/3/3A TR3 Turn Signal Auto Cut-Off Triumph 5
bluemiata90 TR2/3/3A TR3 rack and pinion conversion /turn signals Triumph 9
M TR2/3/3A TR3 turn signals Triumph 5
gsalt57tr3 TR2/3/3A Left turn braking problem [TR3] Triumph 2
J TR2/3/3A TR3 engine cylinder top clearance Triumph 22
BillyB62 TR2/3/3A Looking for the Owner of a TR3 Triumph 5
Pool Dad 1960 TR3 engine serial number Triumph 14
T TR2/3/3A TR3 coolant hoses Triumph 2
T TR2/3/3A Has anyone designed a hand brake warning light for the TR3? Triumph 3
J TR2/3/3A "TR3" painted on the engine block Triumph 13
J TR2/3/3A TR3 Rear seat Triumph 11
D Socket for TR3 Gear box drain plug Restoration & Tools 6
J TR2/3/3A TR3 gas tank mystery Triumph 5
T Wanted Wanted - 1956 TR3 Crankshaft Triumph Classifieds 0
jfarris TR2/3/3A Venture into the "dark side," Miata seats in a TR3 Triumph 2
T TR2/3/3A Question on old radio from my TR3 Triumph 9
T TR2/3/3A tr3 front carpet replacement Triumph 5
T TR2/3/3A Should there be a body ground strap to battery on TR3 Triumph 7
G For Sale: Triumph TR2, TR3, TR3A Sheet Metal Body Parts – Front Apron (valence) with grille, Bonnet (hood), Doors, Boot (trunk) Deck Lid Triumph Classifieds 3
G For Sale: Triumph TR2, TR3, TR3A, TR3B Factory Steel Hardtop, New Rear window, Partial Bracket Set Triumph Classifieds 2
A TR2/3/3A Early TR3 starter (bomb style) bushings sizes Triumph 5
T For Sale TR2 - TR3 Gas Cap for sale Triumph Classifieds 1
B TR2/3/3A TR3 Hard Top Triumph 2
D TR2/3/3A TR3 throttle linkage bell crank. Triumph 13
M TR2/3/3A Defective master cylinders Tr3 Triumph 13
BarryO TR2/3/3A setting up a TR3 clutch slave Triumph 5
M master cylinder brake/clutch Tr3 Triumph Classifieds 6
C TR2/3/3A TR3 Gearbox Problem Triumph 10
Tr3aguy TR2/3/3A Started a Car revival channel for the TR3 Triumph 12
J TR2/3/3A Any advice for new floor install on my TR3? Triumph 9

Similar threads