[TR] TR4 Coil life

MMoore8425 at aol.com MMoore8425 at aol.com
Mon Jul 14 02:57:25 MDT 2008


In a message dated 7/13/2008 7:32:25 P.M. Pacific Daylight Time,  
staffel at comcast.net writes:

Well, I  have had to replace my TR4's coil several times since 1968. 1st  in
Indianpolis going to NYC from Norman OKlahoma in 1970; 2nd in Baltimore  in 
the
1980's. Typical symptom of bad coil- OK when cold- opens when HOT  (99^ day
too). Then in 1999 I put a Mallory Dual Point and Lucas Sport Coil  (from
MOSS)-- No problems since except blown condensor  (2005).

Sherman d. Taffel



It has been my experience that coils frequently (ALL of mine) fail  by 
providing a weaker and weaker spark. I once read this and it is the test  I use:
 spark color 
blue-white    tops
yellow-white  great
yellow -orange  not very hot
orange-red weakest
 
I have checked coils this way for years and have replaced several coils in  
my cars when they were low on the list and have seen dramatic change in  
performance.
 
Mike Moore 
Brandywine, West Virginia



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