What is the speed marker?

FineWynsFJ40

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What the hell is it used for? The speedometer is hooked up via cable, and according to my schematic the only wire going to it is a power wire on a 15A fuse going to the alternator regulator and turn signal flasher. What gives? There are a few things that were under the dash that I couldn't figure out...

Thanks,
Brian
 

Ming89FJ62

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I think you're describing the speed marker that's part of the speedometer. It's a single spade lug on top of the speedo housing - connects to a light blue wire (IIRC) and is part of the emissions set up (at least on my Cali emissions 78's). The emissions "computer" is located DS under the dash near the side vent.
 
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69 and maybe 70 cruisers did have a speed marker, what you are looking for is a 3" long aluminum looking cylinder with two wires coming out of it that is installed with threaded connectors in the speedo cable.
 

inkpot

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Hijack:
brider- do you still have it? I want to see if I can make it work for a TBI conversion, and I havent found one to experiment with.
Howdy! It is just another type of odometer. It tells the smog system when to turn on the dash light that says you need emision service. I diconnected mine when I bought it, not perforrmance difference. Later, I bypassed it by using a longer speedo cable. John
 
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Thats for the later ones, that are 1/'75-maybe 8/'76... early ones feed vehicle speed to the primitive emissions computer.

Howdy! It is just another type of odometer. It tells the smog system when to turn on the dash light that says you need emision service. I diconnected mine when I bought it, not perforrmance difference. Later, I bypassed it by using a longer speedo cable. John
 

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