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Re: [Mgs] Power Fade and Recover

To: MG List <>
Subject: Re: [Mgs] Power Fade and Recover
From: Charles & Peggy Robinson <>
Date: Sat, 14 Jun 2008 18:26:44 -0500
  That happened to me, too, when I first had the head rebuilt with new 
valve guides.  It didn't happen until I took it on the highway after 
driving it around town for a hundred miles or so.  One exhaust valve 
guide was found to be on the low end of the clearance spec.  The valve 
didn't stick until the engine warmed up that extra bit on the highway. 
However, when mine stuck it stayed stuck and there was obviously a dead 
cylinder.  It was easy to find the dead cylinder by pulling spark plug 
wires when the problem occurred.

   When it happens, I'd pull over and start pulling wires, one at a time.



Dodd, Kelvin wrote:
> Robert:
> Since you had head work done, I'd check for a sticking valve. If the
> valve guides are too tight, one of more valves could start hangine up as
> the engine warms up and the clearance gets tighter.
> The symptom is similar to what you are describing and typically leads
> one to check fuel and ignition issues to no avail.
> Kelvin
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