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Re: Noise from engine compartment

To: Harlan Jillson <hjillson@argolink.net>
Subject: Re: Noise from engine compartment
From: "M. W. Jordan, Jr." <mw_jordan@mindspring.com>
Date: Wed, 21 Apr 1999 23:47:52 -0400
Real long shot here, but it happened.

On my 60 MGA I had a spinning, grating, clanging noise I couldn't diagnose as
starter related, gear box related or anything else.  Turned out to be the dust
cap on the drive shaft where it mates with the gear box.

Harlan Jillson wrote:

> Well,
>    This is pure speculation....  It sounds like something is spinning on
> after the engine stops turning for a couple of seconds.  It also sounds like
> it's something that isn't supposed to turn.  Do you had a water pump pulley
> with dual grooves to drive the air pump and no air pump?  Somewhere I heard
> that some of these were stamped pieces that were pressed/riveted together.
> It could be that the unused pulley is spinning on the shaft after it heats
> up and expands a little.
>   Just another SWAG.
> Harlan.
> -----Original Message-----
> From: Phil Vanner <pvanner@pclink.com>
> To: 'Edwin Vaughan' <vaughme@mail.auburn.edu>; 'MG NUTS'
> <mgs@autox.team.net>
> Date: Wednesday, April 21, 1999 4:26 PM
> Subject: RE: Noise from engine compartment
>
> >The alternator fan fouling the alt body? Is there a bearing in there that's
> >dying and as it lets go the belt tension is pulling the fan/pulley out of
> >alignment? The fan (I'm talkin' engine fan now) may be fouling the shroud a
> >bit, but I would expect that to make a godawful noise audible at all times.
> >
> >Good description of the sound, BTW.
> >
> >Phil Vanner
> >Mk1 Midget
> >
> >-----Original Message-----
> >From: Edwin Vaughan [SMTP:vaughme@mail.auburn.edu]
> >Sent: Wednesday, April 21, 1999 2:17 PM
> >To: 'MG NUTS'
> >Subject: Noise from engine compartment
> >
> >
> >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
> >
> >
> >
> >




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