Have you checked compression and/or valve clearance. Sounds like a
burned valve to me. Hopefully it isn't but that's kind of what it
sounds like. It could be the wires - just because they're relatively
new, doesn't mean they're still good. you should check the resistance on
them.
Phil Bates
H. W. "Sandy" McCullough wrote:
>Hey, Listers,
>
>I"m a re-tread to the list, but have recently developed a problem with my
>'72 B. It has a miss on one cylinder at lower RPM's that seems to smooth
>out above 2500. I have checked the plugs, and they all are a nice tan color
>on the electrode. Timing seems to be right, and a couple of months ago, the
>SU's were synced and adjusted. Also, points, and plug wires are less than a
>year old, and the distributor cap appears to be fine inside and out. The
>only telltale sound other than the miss is a bit of excessive tappet noise.
>
>Ideas?
>
>Thanks, gang,
>
>H. W. "Sandy" McCullough
>72 B
>68 B
>http://www.mgcars.org.uk/pics/mccullough72b.jpg
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