Dan writes...
>
>As silly as this sounds, there is a good reason for it. Hopefully, you will
>never see the brake warning switch operate, but the low oil pressure switch
>operates every time you turn the key on until the engine is up to speed. By
>wiring the lights in series, the driver has the opportunity to check both
>bulbs for operability every time he turns on the key. You should be in the
>habit of looking to see if both lights come on - otherwise, the bulbs could
>fail and you would never know it. If the bulbs should fail and you get a real
>brake warning or low oil pressure, you would not get the indication and a lot
>of damage could be done.
He he...I really hate this circuit. I confess I've modified mine to
something more conventional. Oops...a CDO! :-)
The factory setup is running two 12 volt bulbs in series which is just
too darn dim to get my attention. You can't substitute 6 volt bulbs
because sometimes the brake bulb gets 12. Yet the O.P. lamp *never*
sees 12 volts and never illuminates properly.
I also don't like the idea of having my only <in a Spit> oil pressure
indicator relying on the integrity of a second bulb. The way I'm
wired now I still get an OP bulb check on startup which is what I
really care about.
The brake failure lamp, IMHO, is of little value. For it to actuate
you need to step on the pedal and by then you already know! :-)
Cheers!
Tom O'Malley in Southbridge Massachusetts
'74, '77 Spits
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