Re: Vacuum Pumps

by Roland Wiench :: Rate this Message:

Hello Evan,

Which one of the Pierburg diagphram pumps make the lease noise when starting
out and/or at the maximum vacuum?

My GMC belt driven unit that is use on GMC diesel engines, making a clicking
noise at start up, but when it gets up to 15 in.hg. it becomes very quite.

Roland

----- Original Message -----
From: "Evan Tuer" <evan.tuer@...>
To: "Electric Vehicle Discussion List" <ev@...>
Sent: Friday, May 16, 2008 6:54 AM
Subject: Re: [EVDL] Vacuum Pumps

> The half-dozen production EVs in my yard all use a Pierburg diagphram
> pump which looks similar to the Gast and Thomas ones that are
> available from EV part suppliers. It is very reliable.
>
> Have a look on this page, the pump used is the black one in the picture:
> http://tinyurl.com/434zjo
>
>
> On Fri, May 16, 2008 at 12:56 PM, <DOCTORDHD@...> wrote:
> > What do production EVs use for a vacuum pump? Anyone know?
> >
> > Thank you,
> >
> > Dave Delman
> > 1981 Electric DeLorean Project
> > electricdelorean.com
> > http://evalbum.com/1482
> >
> >
> >
> > **************Wondering what's for Dinner Tonight? Get new twists on
> > family
> > favorites at AOL Food.
> > (http://food.aol.com/dinner-tonight?NCID=aolfod00030000000001)
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> >
>
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