Getting Inside the Front Blinker Assembly

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Michael Pawelek
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Getting Inside the Front Blinker Assembly

#1 Post by Michael Pawelek »

The 356 is new to me so I know some of my questions may appear stupid to some of the senior members of the group from some of the terse answers I have received but In my learning I am trying to not break anything and make the situation worse.

My right front blinker does not work even with a known good bulb installed. Inside the car moving the turn indicator stalk for the right side I get one green blink of the indicator light then nothing. Then looking outside the right rear blinker is working fine.

I can take the front bullet shaped cover off but the next 1” piece before a rubber gasket will not budge. From the back in the wheel well I see the whole unit is held in place by two nuts. At this point do I try to disassemble further from the front or take the unit out by way of the wheel well. Maybe put a meter on the contact points to see if I get a reading? Any suggestions appreciated.

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Don Gale
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Re: Getting Inside the Front Blinker Assembly

#2 Post by Don Gale »

Correct. It's held in place with 2 studs in the smaller forward bezel. Remove the 2 nuts on the back side.
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Re: Getting Inside the Front Blinker Assembly

#3 Post by Hugo Karasawa »

Deleted my answer.
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Martin Benade
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Re: Getting Inside the Front Blinker Assembly

#4 Post by Martin Benade »

It’s possible the bullet connectors are not plugged in, but are inside the boot.

Before anything else, try a test ground wire from the battery- to any part of the chrome light housing.
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Mike Wilson
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Re: Getting Inside the Front Blinker Assembly

#5 Post by Mike Wilson »

Possibly a bad or no ground to that assembly.

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Re: Getting Inside the Front Blinker Assembly

#6 Post by Michael Pawelek »

Tried a meter and I get pulsing when going to a optional ground such as the bumper. Looks like a bad ground in the light housing.

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Re: Getting Inside the Front Blinker Assembly

#7 Post by Don Gale »

Make sure the blinker fluid reservoir isn't dry ;)
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former 1966 Euro 912 Sunroof
former 1978 Intermeccanica Speedster w/'68 912
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Re: Getting Inside the Front Blinker Assembly

#8 Post by Martin Benade »

Us Luddites don’t approve of the synthetic stuff.
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Re: Getting Inside the Front Blinker Assembly

#9 Post by Mike Wilson »

See if this helps. Brown ground wire with ring terminal on a turn signal stud to the ground wire on the horn. Check your wiring loom to the horn to see if there is a pigtail wire. If not, just use a short length of brown wire with ring terminals in each end; one to the turn signal stud and the other to the horn ground wire screw.

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Re: Getting Inside the Front Blinker Assembly

#10 Post by Michael Pawelek »

Mike , That was the solution. After taking the whole unit apart I saw there was no specific ground wire and that the whole metal assembly grounds to the car body. Between the paint and rubber rain seals on the light assembly there is no path to ground. I temporarily ran a wire from a rear threaded bolt on the blinker assembly over to the bolt holding the horn to the frame and eureka the blinker flashed! Thanks to all for the help. Now on to the rear brake lights that do not work. I suppose I should check for poor grounds there also and if that is ok then on to the brake switch???

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Re: Getting Inside the Front Blinker Assembly

#11 Post by David Jones »

Remove both connections from the brake light switch and tie them together. With ignition on you now have power to the brake lights all the time.
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Mike Wilson
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Re: Getting Inside the Front Blinker Assembly

#12 Post by Mike Wilson »

Good grounds are critical on our cars. You figured out the font turn signals so you know how to check the rears. We're here to help if yiu get stumped.

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Re: Getting Inside the Front Blinker Assembly

#13 Post by Michael Pawelek »

Will check out the wires to the switch first thing tomorrow. If I need a new switch can I assume by removing the old one brake fluid will run out and after assembly of the new switch the brake system will need to be bled?

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Re: Getting Inside the Front Blinker Assembly

#14 Post by Wes Bender »

Yes, but possibly only the left front if you change the switch quickly. If they haven't been bled in a year or so, I'd bleed them all. Before messing with the switch though, I would check for good grounds at the taillights.
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Re: Getting Inside the Front Blinker Assembly

#15 Post by Michael Pawelek »

I disconnected the wires from the brake switch, connected them bypassing the switch, then turned the ignition on and both brake lights came on so now I know the switch is bad. Will order a new one today. Thanks for the help.
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