Just a question. It's not real important, just curious. Just completed a turn signal setup. Used Lang's hose clamp mounted switch and (I believe) Mac's 6vt. 3 prong flasher. Using 1129 (21cp) bulbs front & rear. The system works fine but the flashing is quite fast. It's not a blur but it's quick. I'm thinking that's just the way the flasher operates. I also noticed that the indicator lamp on the stalk of the switch some times just stays lit even though the body lights are flashing and some times it flashes. Every thing is hooked up according to the switch diagram. Any thoughts? Like I said, just curious.
Are all the bulbs flashing when they're supposed to? I think sometimes a quick flash indicates a bulb not working.
All bulbs flash/are working in proper sequence. With the exception of the switch indicator bulb which flashes when it feels like it. Besides I think, with these old style bi-metalic flashers, with a bulb out they wouldn't flash. Just come on and stay on.
A quick flash can also mean the flasher isn't heavy enough for the load. Are you sure everything is wired correctly? That indicator light problem could also mean there's a problem in the unit it's self.
Usually when the flasher is cycling unusually fast it is an indication a bulb has burned out or the circuit to it has opened. I'm unsure of what a conventional flasher would do with LED devices but I imagine the LED device would appear as a burned out bulb to a conventional thermal driven flasher unit.
A different type flasher will probably settle things down. Try a heavy duty flasher or an electronic flasher. You will need a 6 volt flasher and that might not be available in the electronic version. I had just as soon have the other any way.
I agree with Roger. The flasher is probably bad. When a bulb burns out or there's open circuit, the flasher normally stays on since there's not enough current used to heat the bi-metal strip to cycle off.
I had a batch of bad 6v flashers. Out of 20, only two worked.
The intermittent light on the stalk is a bad ground to that housing. ws
Grounds are a problem on T's, It's more trouble but I run a dedicated ground to each light and never have any problems. KB
The first flasher I had on mine was t--o--o s--l--o--w! I replaced it with an old stock type heavy duty and it flashes just right.