Date: Tue, 19 Feb 2008 23:08:19 -0800
Reply-To: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Subject: Re: Water Pump Impeller Damage
In-Reply-To: <c4e7c5f90802192145t559822b8u85c4043af326673a@mail.gmail.com>
Content-Type: text/plain; charset="us-ascii"
I've used dozens and dozens of water pumps with a black plastic impeller on
vw engines.
They're fine.
If there is any concern about the impeller touching the housing..........
The first thing you do after installing a w. pump is spin it by hand to make
sure it turns smoothly and doesn't rub on anything. I've used paper gaskets
on them many times.
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
neil N
Sent: Tuesday, February 19, 2008 9:45 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Water Pump Impeller Damage
Could be the wrong gasket. Good point. ...... I just checked. It is
about 1mm thick and looks to be a single layer. I couldn't tear it in
half. But if it isn't the right one, that might explain the damage.
I was warned by a lister on VW Vortex 2.0 list, that the pumps with
the plastic impellers tend to self destruct.
The pump + gasket in the pic are what I just pulled off a relatively
low mileage used Jetta 2.0 I picked up for my engine conversion. Glad
I did!
FWIW, the pump says "Germany, WWO" and has what looks like an Audi stamp.
I'm replacing the coolant pump, gaskets and belts while the engine is still
out.
Neil.
On Feb 19, 2008 9:25 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
> Is it possible you have the wrong cover gasket? Is it only paper? If so
> wrong one. The correct gasket is a laminated multi layer thing. The paper
> gasket will allow the impeller to drag on the pump housing.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
>
> neil N
> Sent: Wednesday, February 20, 2008 12:09 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Water Pump Impeller Damage
>
> Well hopefully my supplier will sell me new. I will ask.
>
> Yup. Plastic. It kinda looks like metal in the pic. I just had to go
> downstairs and double check! "scrape scratch". Yep. It's plastic!
>
> Here's a pic (likely the original as the engine has only 96K km's):
>
> http://tubaneil.googlepages.com/plasticimpeller
>
> Neil.
>
> On Feb 19, 2008 8:42 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
> > Who gets rebuilt water pumps for Vanagons or Jettas? Thoe worst I have
> > seen is the GMP brand. Stamped metal impeller that just does not move
> > enough water at idle. I have never seen a plastic or composit impellar
> for
> > a VW application.
> >
> > Dennis
> >
> >
> >
> > -----Original Message-----
> > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
> Of
> > Allan Streib
> > Sent: Tuesday, February 19, 2008 10:50 PM
> > To: vanagon@GERRY.VANAGON.COM
> > Subject: Re: Water Pump Impeller Damage
> >
> > neil N <musomuso@GMAIL.COM> writes:
> >
> > > Got some advice on brand names for replacement and was advised to
> > > get one with a metal impeller as the stock plastic one self
> > > destructs. I pulled it and sure enough, the plastic was
> > > deteriorating! Not sure why, but maybe something to do with a
> > > chemical reaction?
> >
> > By the way, if you get a "rebuilt" water pump then be sure to check
> > the impeller before you install it. I bought one for a Jetta years
> > back and the impeller had visible, fairly significant cavitation
> > pitting right out of the box.
> >
> > Allan
> > --
> > 1991 Vanagon GL
> >
>
>
>
> --
> Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"
>
> http://web.mac.com/tubaneil
> http://tubaneil.googlepages.com/
>
>
--
Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"
http://web.mac.com/tubaneil
http://tubaneil.googlepages.com/
