I had a similar issue driving home from Knoxville one night. Turned out
the valves on the third cylinder were too tight. For good measure I did
them all. Beats pulling the head to find a non-burnt valve.
Rich
Red '74B
Nashville
-----Original Message-----
From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net] On
Behalf Of Phil Bates
Sent: Sunday, February 15, 2004 9:14 PM
To: H. W. "Sandy" McCullough
Cc: MG List
Subject: Re: Engine Miss
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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