My '62 TR4, also fitted with the Crane electronic ignition and needing a
ballast resistor, was doing exactly the same thing when I had the headlights
on. Have since charged the battery and remounted the coil to the firewall,
and have not had the problem, but also have not tested it with a long drive
with headlights on. So the mystery lives on . . .
John Hendrickson
'62 TR4 CT4017L
'67 Spitfire MKII
-----Original Message-----
From: Dave Lee <davelee1@home.com>
To: triumphs@autox.team.net <triumphs@autox.team.net>
Date: Thursday, February 17, 2000 2:51 AM
Subject: TR4 Sputter
>
>What might one check if his TR4 sputters at low engine speed. When I start
>from stops and promptly after shifting is when the car will have that
>strange sputter for lack of better word. It feels as if the ignition isnt
>working properly at those moments. While not moving the car can be revved
>up and down without any symptoms. Also if I give it good blip before
>letting the clutch out it doesnt seem to do this.
>
>One thing is that I have some strange electrical issue Im working out. I
>almost want to say that at low engine speeds, since my ammeter shows a draw
>Im not getting enough juice to give me a good spark. Im also using the
>Crane XR700 electronic ignition system.
>
>I have also been using a coil that needs a ballast resistor without the
>resistor. This is because the car stalls with the resistor in line. The
>sputtering is a new thing that seems to be getting worse. I orderred a new
>coil from Crane. Maybe my coil is dying. Since the engine block gets
>pretty warm is it a good idea to mount the new coil some place else or is
>the temperature negligible?
>
>Thanks for the help
>David Lee
>64 TR4 (almost there)
>
>
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