If the noise is only during run-on, could the engine be shaking enough (bad
mounts combined with the natural shake of run on?) so that something
nowhere near the pulleys is clanging on something? I'm thinking exhaust
here, but there might be other candidates. The best way might be to get out
and open the hood before shutting it down after a ten minute drive, and
look/listen while it's making the noise.
Ed Kaler's being cryptic again; I'll bet he knows what it is...
Nevin
>It's not clear from your message whether the entire noise is due to
>dieseling/run-on or if there is something else. I must say my B runs on
>occasionally, and when it does it has a very metallic, clanging sort of
>sound, slowly dying away.
>
>Edwin Vaughan had this to say:
>
>>
>>Hello All,
>>
>>Yesterday afternoon I pulled into my drive way, shut off my '77 MGB and
>>noticed a sound like a table saw makes when the power is shut off (kind of
>>a slinnngggg chang chang chang). I thought something might be fouling one
>>of the pulleys. I popped the hood and found nothing. I started the car up
>>and shut it off again....no sound. This morning after driving the car 10
>>minutes, maybe, I shut it off and the sound was there, just muted. Again
>>this afternoon, after driving for about 10 min., I shut the car off, it
>>ran-on or dieseled for a couple seconds and the sound was more chunky. The
>>alternator is not loose and the fan pulley is not loose. What could this
>>sound be?
>>
>>TIA,
>>
>>Edwin
>>'77 B
>>
>>"I try to think but nuthin' happens"| The MG Filling Station
>> -- Curly (the stooge) | http://www.auburn.edu/~vaughme
>>
>>
>>
>>
>
>
>--
>
>Max Heim
>'66 MGB GHN3L76149
>Runs great,
>looks particularly bad since some SUV clown backed into it.
>If you're near Mountain View, CA,
>it's the red one with the silver bootlid.
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