Thanks to all - I've had a number of suggestions, a few have narrowed down
to this valve, which I will check, but all are good ideas.
- Tab
At 10:37 PM 11/9/99 -0800, Steve Conley wrote:
>The '73-80 models of B have the anti-run on valve. When you (not you Skye!)
>turn off the engine, you should hear an audible click from the valve
>kicking-in. It is located on the passenger side of engine compartment by the
>carbon cannister. My '76 had a short period where it would diesel a bit and
>it went away as quickly and mysteriously as it appeared. I just shrugged my
>shoulders and didn't try to figure it out!
>
> Giving money and power to government is like giving whiskey and car keys
>to teenage boys. -(PJ O'Rourke)
>
>Steve Conley
>Marysville, WA USA
>'76 MGB Roadster
>GHN5UG393585G
>mailto:swconley@foxinternet.net
>MGB Online = http://web3.foxinternet.net/swconley
>
>
>
>-----Original Message-----
>From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
>Behalf Of Skye Poier
>Sent: Tuesday, November 09, 1999 1:41 PM
>To: Tab Julius
>Cc: MG Nuts
>Subject: Re: What causes "shutoff shudder"?
>
>
>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.
>
>Skye
>
>--
>1966 MGB - GHN3L Safety Fast! __,__\__
>The MGB Experience http://www.mgb.bc.ca/ (_o____o_)
>
>
>
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