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Re: What causes "shutoff shudder"?

To: Tab Julius <>
Subject: Re: What causes "shutoff shudder"?
From: Skye Poier <>
Date: Tue, 9 Nov 1999 13:40:57 -0800
Word on the street is that Tab Julius said:
> Turning off my ignition, my 78B's engine will often give me a few shudders
> before it decides to shut off for good.  This is an effect I remember
> fondly from other older manual, probably non-fuel-injected cars (most
> notably my long-gone yellow 72 beetle).  Releasing the clutch (to a gear)
> causes it to shut off quicker (okay, stall).

The common term for this is "deiseling" or "run-on".  The engine is hot enough
to continue to ignite air/fuel even though there is no spark.  I
could be wrong, but I think your 78 should have an anti-runon valve..
the gulp valve?..  I don't know a lot about the emissions systems on
later cars.


1966 MGB - GHN3L     Safety Fast!             __,__\__ 
The MGB Experience   (_o____o_)

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