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RE: TR3a SU carbs & misc

To: "'Randall Young'" <ryoung@navcomtech.com>, <triumphs@autox.team.net>
Subject: RE: TR3a SU carbs & misc
From: "David A. Templeton" <davidt@opentext.com>
Date: Mon, 16 Jun 2003 17:53:10 -0400
> Hard to be certain, but I'd say that means there is a problem
> with either the cap or the plug on that cylinder.  It shouldn't bite you
> until after  you've pulled the cap off the plug (and then I'd say even
> heavy leather gloves aren't good enough).

That is what I figured, the leather was for heat protection, rubber should
be inside those for electric protection :-)

>  What's your plug gap set at ?

Plug gap .025" as I confirmed on the plugs when I got them "FT".

In another instance I also touched the two clips that hold the dizzy cap
while it was running and got a good jolt as well.

>
> That also argues for some other problem going on, although
> I'm not sure what.

Okay, no problem, one issue at a time :-)

>
> Have you checked the resistance of the plug wires ?  Use an
> ohmmeter to measure from the contact that goes on the plug all the way to
> the contact inside the distributor cap.  With solid wires and no added
> resistors, you should see no more than a few ohms.  Even with suppression
> resistors, it shouldn't be more than about 10K, and should be roughly the
> same on all cylinders.

Okay, will report that once I am home.  Sorry "FT", doing this email from
the office.  Not from the Blackberry, my means of staying in touch during
the off hours ( most times ).

>
> A new set of plugs (yes, yet another set) might be worth a
> try, too.  If they don't help, you can save the ones you took out for your
> next tune-up. Even brand new plugs are sometimes defective.

Will, pick up another set of Champions ( L82YC right? ).

Thanks so far
David Templeton
'59 Triumph TR3a
'74 Triumph Spitfire

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