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Q & A: Sputtering after "extended" idle

Saturday March 30th, 2002
Q & A, MGA, MGB, MGC, MG T-Type, Midget
Hi Mr. Twist,

I own a 1968 MGB which runs well most of the time ... the problem I'm
currently having occurs when the car sits in traffic idling for an
"extended" time (over 5 minutes), especially on hot days. When the traffic
breaks free, the engine will sputter and bog as if it's running on less
than 4 cylinders. The sputtering ceases gradually after three to five
miles
of steady driving and continues to run OK after that. Could this symptom
possibly be caused fouled spark plugs? (Engine oil consumption is around
450-500 miles per quart). Any help is appreciated.

Thank You,

Rich Fine



Rich!

The hot days are gone and besides, you've probably already found the
problem with your MGB -- but some of this may help.

Your MGB IS (was) running rich. When idling (stop lights, stop
sign... read more