The "banshee" description really sounds as if the alternator is jamming
(ceasing to rotate), causing the shrieking of a tortured belt in combination
with a sudden lack of juice. Try removing the belt and spinning the
alternator by hand to see if the bearings are giving up.
It also sounds like your distributor vacuum advance pot is toast, but I
can't see how that could result in any kind of loud noise.
on 5/20/02 1:43 PM, Aubrey Schneider at aschneider@shaw.ca wrote:
> I should have also mentioned that the belt has 1/2" deflection when
> depressed in the centre.
> Is it possible that the noise is coming from the vacuum on the distrib. I
> can't get it to hold vacuum when I suck on it, yet the pipe only doesn't
> leak.
>
> Any further comments will be gladly received.
>
> Aubrey
>
> Bullwinkle wrote:
>
>> <<<snip>>>
>> When I asked advice on recent noise problem (Banshees under the hood)
>> the symptom was a loud shrieking sound, with an immediate reduction in
>> power & all lights became dimmer. When the noise stopped, all as
>> before.
>> <<<snip>>>
>> Slipping dynamo/alternator belt
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires
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