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Re: [T3] Flasher unit

On 18 Nov 2003 at 17:03, Daniel Baum wrote:

> I've just noticed something interesting about the '69 flasher unit: it 
> clicks when you turn the ignition on. I assume this is the way it is 
> supposed to work, and every indication is that my relay is in perfect 
> condition,

I don't recall them clicking when you turn the key ON, but I believe you. Those 
flashers had a few "quirks." My 68 clicked every time I hit the brake pedal. 
Eventually I fixed this by resoldering a bad connection, I think. Or maybe it 
was just a bad capacitor that I never fixed.... I think it's all related to 
voltage transients in the 12V power, which this design is sensitive to.

I don't think they all did this, nor did they do it when new. Russ may remember 
something about these, too.

> Now, one of the few things I know about the fuel injection system is 
> that the fuel pump relay, which I understand is under the dash, is 
> supposed to click when you turn the key on (it gets mentioned on this 
> list about twice a day), thus, if anyone is trying to debug a '69-70 FI 
> system, make sure you're hearing the right relay click, especially if 
> you hear it click once, and then not again.

It's been a long time, but I think the flasher click might be a quick double-
click, and it's probably a softer click than the FI relay.

> I'm sure Jim or someone will correct me if I've got the details wrong.

Nope, it's a good point, and I hadn't thought of it.

And now we've managed, once again, to mention the FI double relay clicks twice 
today.  ;-)

Jim Adney
Madison, WI 53711-3054

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