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One Black Plug

To: triumphs@autox.team.net
Subject: One Black Plug
From: TR250Driver@aol.com
Date: Sun, 26 May 2002 16:16:29 EDT
Hi guys,
I took the TR3B out for her first run of the summer today.  Barely made it to 
the Gas Station since she was running very poorly.  I didn't think to much 
about it since the gas was nearly a year old.  But new 94 octane didn't 
improve things much. I brought her back, cleaned and reset the points and 
noted that the distributor shaft is just a tiny bit loose.  Still running 
like crap so I pulled the plugs.  Number 1, 2, and 4 looked good just like 
you want them with light brown deposits.  Number 3 however was black as coal 
with heavy carbon deposits.  I installed a fresh set of Bosch Platin plugs 
and she took off like a champ. I took her for a 50 mile run and number 3 
looks OK.  Any thoughts on the source of carbon fouling in one cylinder?
Thanks in advance,
Darrell   

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