You're kidding about holding the shaft of an electric drill or saw still
while applying power right?!

Here's a tip: Don't do that!

On 12/16/06, Greg Potts <greg@pottsfamily.ca> wrote:
>
> Hi Geza,
>
> Fuel starvation makes the pump heat up, as it is not being cooled by
> the fuel flowing through it. At the same time it is also being asked
> to work harder to pull fuel. Ever hold the shaft of an electric motor
> still while applying power to it? (drill or power saw, for instance)
> Electric motors hate that, and they will make noise to tell you about
> it. That's what your fuel pump is doing.
>
> The heat and extra stress will soon wear out the bearings in the
> pump, and thereafter the pump will be loud regardless of whether the
> fuel is flowing freely to it.
>
> If you resolve a starvation condition early enough your pump should
> return to silent operation. If it doesn't, then you should consider
> carrying a spare before venturing on any long trips away from
> mechanical assistance. It might keep going ok for years, or perhaps
> not. If it were my bus I'd change it out and carry the noisy unit as
> a spare in case someone else's failed. YMMV.
>
> Happy Trails,
>
> Greg Potts
> 1973/74/75/77/79 Westfakia "Bob the Tomato"
> www.pottsfamily.ca/westfakia
> www.busesofthecorn.com
>
>
>
> On 16-Dec-06, at 11:26 AM, Geza Polony wrote:
>
> > What I'm still not getting is how you can replace a fuel pump and
> > still have
> > it make the buzzing sound. The consensus in the archives seems to
> > be that
> > there are two causes for FP buzz syndrome: fuel starvation, either
> > because
> > of a clogged filter or because of a clogged fuel line before the
> > filter, or
> > bad pump bearings caused by the fuel starvation. How could "fuel
> > starvation"
> > make the same sound as a bad bearing? And how can you tell?
>

--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
www.crescentbeachguitar.com