Hello Group -
What color should the spark be by testing it with an extra spark plug and
holding it near the block? Mine is almost yellow/white with just a bit
of blue near the tip. I ask because I've never gotten the TR6 to run
right. It seems to be running on just 4 or 5 cylinders. I can take the
lead off numbers 6 and 2 and hear no difference in rpm or smoothness.
Now keep in mind that my compression is rotten across the board (95-100),
and my plugs are oily, (indicating rings, guides or valves bad?).
(I probably should have gone for a rebuild before doing the body work and
paint job, but I had a bout with shipwright's disease this spring!)
Carl Huppert
75 TR6
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