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[TR] Electrical Gremlin

To: triumphs@autox.team.net
Subject: [TR] Electrical Gremlin
From: TERRY SMITH <terryrs@comcast.net>
Date: Wed, 29 May 2019 21:36:44 -0400 (EDT)
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
Importance: Medium
References: <765C507C-32A2-4A9C-AC29-DD6259DB7F68@gmail.com>
Alas, I have been a good boy...relatively speaking, of course.  Yet nonetheless 
the Prince of Darkness, St. Lucas, has descended to wreak havoc.

TR3 engine starts and runs, then flutters and, now, dies.  I've been through 
the fuel system completely, short of a magnet in the fuel tank, which I might 
try.  Completely disassembled the carbs again today.  Jets centered, float 
bowls have no gas in them, float valves perfectly adjusted, and the puff test 
shows they stop flow as they should.  Mixture and idle is right.  Not to 
mention I tried a complete swap out of these carbs (rebuilt by Quantum 
Mechanics some years back).  

I've tracked wiring through the system.  I thought a partial open (broken 
wires) at the lighting switch where it feeds the ignition switch would fix it.  
Didn't.  Replaced the 60 year old ignition switch. Didn't fix it.  Double 
checked the fuse holder for solid and clean connections.  Not the issue.  When 
it does run, the voltmeter (not ammeter) shows just the 12 volts from the 
battery, and not a charge.  White wire from the fuse to the coil tests no short 
to ground, and bypassing it with another connecting wire doesn't cure the 
problem either.  

So question.  When one has done the Pertronix modification (I replaced that 
too), the generator control is wired differently.  I've checked connections 
there and they're good.  But is there any break-down inside that could cause a 
power disruption to the ignition system.  

Second question, I can't really tell from the wiring diagram whether the 
generator or the starter could be stealing power from the ignition system.

I'll be back at it tomorrow, but any thoughts?

Best,
Terry Smith, '59 TR3A  TS 58667
New Hampshire
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