[TR] Stranded

[Alex&Janet Thomson]

Things to check.

1. Is the Pertronix unit receiving full voltage? I had one on a TR-6 that 
failed because it was wired to the regular coil feed wire - the one after 
the ballast resister wire. The unit was receiving only 8-9 volts. It would 
produce a spark at craning speed, but that was it. The supply voltage should 
have come directly from a switched 12v source like the fusebox.

2. Is the unit designed for positive ground? I assume that a TR-3A is 
positive ground.

Alex Thomson

----- Original Message ----- 
From: <terryrs at comcast.net>
To: <triumphs at autox.team.net>
Sent: Thursday, September 23, 2010 7:06 PM
Subject: [TR] Stranded


> Uh oh.
>
> Pulled into Hannaford Supermarket this afternoon, when the engine stalled. 
> Actually, it ran rough as hell with pedal gooses for about 30 seconds.
>
> Electronic Ignition.  Checked spark with screwdriver in the wire ends. 
> All cylinders getting spark, not sure how strong, but seemingly okay.
>
> Did not check fuel flow, but can hear the electric fuel pump throbbing.
>
> Trying to start, the car backfires but makes no attempt to catch and run.
>
> Checked the float resevoirs, no fuel leaking out the overflow tube.
>
> Do TR3A's ever jump a cog and throw the timing off that much?  Or am I 
> looking at a valve problem?  (or...both)
>
> Terry Smith
> New Hampshire
>
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