triumphs
[Top] [All Lists]

Re: TR4A headlight switch "flash to pass"

To: triumphs@Autox.Team.Net (Triumphs List), jonmac@ndirect.co.uk
Subject: Re: TR4A headlight switch "flash to pass"
From: spamiam@comcast.net
Date: Sat, 27 Nov 2004 16:29:41 +0000
Hmmm, was this optional "flasher" a separate piece of hardware?  If so, what 
whas it?  As far as I can tell, the "flash-to-pass" is a function of the 
lighting switch.  The one that is "off/ parking lights/ headlights.  When the 
stalk is pulled toward the driver then it switches a separate circuit.  Whe 
wiring diagram shows this separate circuit energizing the headlights before the 
dip switch, so it ought to power either the lows or highs depending on the 
position of the dip switch.  In other words, nothing will flash if you already 
have your hedlights on (at high or low).  

The way it actually works is that it energizes the high beams only, so you will 
get a flash at all times except if you have the highs beams on (in which case 
you are unlikely to actually need the flash to pass feature).  So, the wiring 
diagram is wrong, and the separately energized circuit enters the high beam 
wiring somewhere AFTER the dip switch.

An undocumented feature worthy of Microsoft!

-Tony


____________ORIGINAL MESSAGE_________
Date: Thu, 25 Nov 2004 14:20:18 -0000
From: "jonmac" <jonmac@ndirect.co.uk>
Subject: Re:  Re: TR4A headlight switch "flash to pass"

Chris Kantarjiev wrote:
I think that the US DOT may have "forced" Triumph to leave this
functionality out.

Don't think so, Chris. A headlamp flasher was an optional extra for US spec
TR4A's, just as was IRS. I remember coding HF on production indent dockets
many many times. One of those oddball imponderables that was no doubt
entirely logical to the marketing people of the day, but not you and me :)
To further compound the illogicality, ISTR a flasher was a standard feature
on Spitfires and GT6 for the same market. 4A's going to everywhere else got
a flasher as a normal line fit.

Jonmac




<Prev in Thread] Current Thread [Next in Thread>