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> Turn Signal Switch ... Need help with Mark's WCR car
cary
post May 15 2016, 12:05 PM
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Good Morning,

I've been laying low after I had isssues with tracing down the electronic issues with the tach in the blue car. The tach was dead. I replaced it with a working silver dot. The only issue seemed to be the size of the bulb holders. Swapped them out, everything seems ok. Am I missing any hidden issues?

But I'm having trouble with the turn signal switch. Turning on the left signal blows fuse number #9. I hope Mike Bellis is around today, he seems to have a good grasp on switch issues.

Here's where we're at:

* Stalk switch for the parking brake lights work with key off. Both sides, all lamps. (IMG:style_emoticons/default/biggrin.gif)
* Light switch turns on the all parking lamps, key off. (IMG:style_emoticons/default/biggrin.gif)
* Emergency flasher works key off and on with the turn signal harness unplugged from the column switch, all lamps (IMG:style_emoticons/default/biggrin.gif)
* Turn signal in the down position works. Both front and back. Seems backwards. turns on the right rather than the left. I switched places on the black/white and the black/green in the harness connector at the switch. Changing them did nothing. I'll deal with that later.
* Up postion blows the fuse #9. After going thru a pile of fuses I went to NAPA and bought a couple circuit breakers for $8 each.
* Next step was to try the switch from my 73. Doesn't fit but everything works. (IMG:style_emoticons/default/biggrin.gif)
* Then I proceed to test out the 75 switch as per Mike's numerous posts. Everything tests out other than continuity between blk/wh/grn and black/green. Zero, nothing.

So the $1,000, 000 question. Do I swap out the 73 wiper switch and stack it on the 75 washer. Will that work ? Will It fit ?
Or tear into the only 75 wiper switch I have?

EDITED @ 6:50 PM
Here's the info I started with this AM.
http://www.914world.com/bbs2/index.php?sho...112819&st=0
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cary
post May 17 2016, 10:43 PM
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Finally beat this critter a little after lunch. Could not figure out why the wiper and fresh air blower would only work when the lights were on. After some more in depth continuity work I went back to the flow chart and started checking off and tracing down wires.

Attached Image
http://volt914.blogspot.com/2007/07/1975-c...ng-diagram.html

Then I find an extra wire on the #8 fuse. Hmmmm.
A white/yellow belonging to #7 was on #8. (IMG:style_emoticons/default/sad.gif) Which energized #8 when the light switch was pulled on. Dandy. But I'm still back to no power to #8 when the key was on.

This is where I'd like some educated insight. #8 is energized by both the horn and blower relay. How does that work?
Then I find another blown fuse, #11. Replace that and we're cooking with gas.
Reading the flow chart, how the hell does fuse #11 energize the blower and horn relays.


Head home with a big smile on my face ............. (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/smilie_pokal.gif)
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Posts in this topic
cary   Turn Signal Switch ... Need help with Mark's WCR car   May 15 2016, 12:05 PM
cary   Nothing from the Brain Trust ................. ???...   May 15 2016, 01:12 PM
rhodyguy   Can you hear the relay clicking when you toggle th...   May 15 2016, 01:41 PM
cary   Can you hear the relay clicking when you toggle t...   May 15 2016, 02:24 PM
914Sixer   75-76 wiper switch is unique. It was sourced from...   May 15 2016, 01:41 PM
cary   75-76 wiper switch is unique. It was sourced fro...   May 15 2016, 02:25 PM
Mike Bellis   Unfortunately I swapped out my column for a tilt a...   May 15 2016, 02:47 PM
cary   Devine intervention. Came back from lunch and the ...   May 15 2016, 03:30 PM
Jeffs9146   When we did Lennies914 car the #9 fuse was blowing...   May 15 2016, 03:46 PM
Mikey914   Found a potential spare. Untested, I'll get to...   May 15 2016, 07:38 PM
cary   I've got the testing part down ............ LO...   May 15 2016, 07:52 PM
cary   Here's what the top of the 75 turn signal swit...   May 15 2016, 08:08 PM
cary   2. The instrument illumination lights come on wh...   May 16 2016, 11:33 PM
rick 918-S   2. The instrument illumination lights come on w...   May 17 2016, 05:59 PM
cary   Some guys should never be allowed to own a wire ...   May 17 2016, 10:20 PM
cary   Oh yeah, short episode of Tool Whore ................   May 15 2016, 08:12 PM
r_towle   Oh yeah, short episode of Tool Whore ...............   May 17 2016, 07:34 PM
cary   Ok, whore... Where did you get the circuit break...   May 17 2016, 10:02 PM
cary   Mark will be adding them to the catalog at 914Rubb...   May 15 2016, 08:44 PM
Mikey914   Again, Thanks Cary, I would not have the time to t...   May 17 2016, 12:26 PM
Wyvern   The circuit breaker is a GREAT idea. Check out the...   May 17 2016, 10:24 PM
cary   Finally beat this critter a little after lunch. Co...   May 17 2016, 10:43 PM
cary   Here's where I start in the am. Wrap everythin...   May 17 2016, 10:57 PM


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