Many thanks to all who responded! I will be checking the PDWA piston centering
and re-try the circuit. It's 'funny' how, sometimes, wiring diagrams show items
to be side-by-side in the circuit but may actually be quite remote from each
other.
Thanks again, all, for the assist...
Cheers!
Dave
'74 Six w/A-OD and TBI
---- "Navarrette wrote:
> Dave:
>
> The twisted logic works thus:
>
> The brake warning light must (by federal law) illuminate when the key
>is in the run position, but the engine is not running. It must also extinguish
>when the engine starts UNLESS there has been a brake failure.
>
> The twisted wiring you see there permitted the factory to meet this
>requirement without adding another oil pressure switch or some other device to
>ground the brake warning light. It also permits the oil pressure light to
>function more or less normally using the same oil pressure switch as the brake
>light.
> I defy you to meet the above requirement without adding an additional
>part to car, while preserving the functionality of the oil pressure warning
>light. It is not obvious to me as to how it can be done.
> Given that you are required to have a brake warning light (which
>requires a light and a brake warning switch of some sort) and you wish to have
>an oil pressure idiot light, it is actually very clever. It saved you $1.39
>that it would have cost to add another switched grounding point for the brake
>warning circuit.
>
> Vance
>
> Vance Navarrette
> Cogito Ergo Zoom
> I think, therefore I go fast
>
> -----Original Message-----
> From: 6pack-bounces@autox.team.net [mailto:6pack-bounces@autox.team.net] On
>Behalf Of Dave
> Sent: Tuesday, May 05, 2009 1:10 PM
> To: 6pack@autox.team.net
> Subject: [6pack] Brake and Oil Warning Lights
>
> Hey List;
>
> Can someone take a look at the diagram in the lower right corner of page 102
>of the Dan Master's TR6 "Electical Maintenance" book and help me out? I hate
>to use the word 'logic' when discussing Lucas handiwork but, what is the logic
>of having the brake failure switch activating both the oil warning lamp and
>the brake failure lamp?
>
> <snip>
>
> Thanks for any help...
>
> Dave
_______________________________________________
Support Team.Net http://www.team.net/donate.html
6pack@autox.team.net
http://autox.team.net/mailman/listinfo/6pack
http://www.team.net/archive
|