[Tigers] wierd in my experience

Steven L. Finberg w1gsl at mit.edu
Wed Oct 3 17:56:22 MDT 2018


Hi Ron

My best guess a broken wire inside the insulation or a broken spring inside the ignition SW.

The cars are old enough that the Cu wire could crack creating an open when ever the dash is shaken.
To test wiggle each wire with the engine going.  A cracked wire will feel different at the break and 
probably create the backfire when wiggled.  The clue here is the only coupling from lamp circuits  to the ignition 
is mechanical shock.

Equally likely is a failed spring inside the ignition SW.    The key rotates the cylinder but a spring toggles  the
electrical contacts to hold them closed.   Bang on the dash near the SW to induce this, I think replacement ignition switches are still available. 

Good Luck 



Ron Fraser

-----Original Message-----
From: Tigers <tigers-bounces at autox.team.net> On Behalf Of Russ and Tammy C.
via Tigers
Sent: Tuesday, October 02, 2018 4:07 PM
To: tigers at autox.team.net
Subject: [Tigers] wierd in my experience

Group----Electrical problem for sure?????  My tiger backfires when I flip
any switch on the dash.  I think it might be the ignition switch shorting.
It also dies when idling. Anyone have this problem before?  Cause?  You all
have been a great help in the recent past for me  and I am looking forward
to someone being of help now.  Thank you.  Russ
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