04-18-2016, 05:10 PM
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#1
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Registered User
Join Date: Nov 2007
Location: Ontario, Canada
Posts: 42
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Anyone running with a metal impeller water pump?
Finally got some nice spring weather and been re-acquainting myself with my 01s.
Im going to put it up on the lift soon and do a bunch of maintenance of on it.
The current water pump is at least 7 yrs old and has between 40 and 80K miles on it.
A few years ago, I was planning on doing the water pump and never got around to it. I bought a metal impeller Pierburg brand water pump at the time.
It's been sitting on the shelf in my garage since. Now there is Internet hysteria (?!) about catastrophic failures of metal impeller pumps.
I am trying to figure out if I should put this one in, or forkout money for a different plastic impeller water pump.
Peter
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04-18-2016, 05:28 PM
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#2
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Registered User
Join Date: Dec 2012
Location: FL
Posts: 4,144
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My pierburg had a composite impellor, is there a chance it is just dark gray composite and looked metal? Post a photo if it is handy.
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04-18-2016, 05:31 PM
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#3
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Artist, 986S tinkerer
Join Date: Aug 2013
Location: Montreal, Canada
Posts: 1,821
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Really Peter, you should read the sh**load of posts on this forum about this. Search metal impeller.
Enough can already go wrong without gambling.
__________________
James now has: 2008 987S 6 speed
Crashed: 2010 987.2 pdk in speed yellow! 
Sold to a cool racer chick: 2004 986 S
YouTube channel: the PORSCHE as seen by NewArt
www.youtube.com/channel/UCohdrH2xHTklM1thxk0KKOQ?
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04-18-2016, 05:41 PM
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#4
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There Is No Substitute.
Join Date: May 2007
Location: West Coast
Posts: 3,253
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A genuine Pierburg WP should not have a metal impeller, the impeller should be dark grey plastic.
__________________
1999 Ocean Blue Metallic Boxster - blueboxster.com
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04-18-2016, 05:47 PM
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#5
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Registered User
Join Date: Nov 2013
Location: Emerald City
Posts: 885
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Jesus christ not again. SEARCH.
And please...don't ask about oil next.
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04-18-2016, 05:52 PM
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#6
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Registered User
Join Date: Nov 2007
Location: Ontario, Canada
Posts: 42
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Quote:
Originally Posted by steved0x
My pierburg had a composite impellor, is there a chance it is just dark gray composite and looked metal? Post a photo if it is handy.
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I will take it out of the box and take a look. Thx
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04-18-2016, 06:50 PM
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#7
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Registered User
Join Date: Nov 2007
Location: Ontario, Canada
Posts: 42
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OK. Is this metal or composite. It's a brown color impeller.
Unsealed the box tonight.
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04-18-2016, 07:37 PM
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#8
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"50 Years of 550 Spyder"
Join Date: Jun 2015
Location: The Road
Posts: 945
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Get a battery....
.....hook up a positive wire and a negative wire.......
__________________
550 SE #310---"It's more fun to drive a slow car fast, than a fast car slow."
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04-18-2016, 07:45 PM
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#9
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Registered User
Join Date: Nov 2007
Location: Ontario, Canada
Posts: 42
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You mean test the resistance?
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04-18-2016, 09:37 PM
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#10
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Registered User
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 1,522
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That looks like a composite impeller - to be sure just check its resistance with a multimeter. If its the same resistance as touching the multimeter prongs together, its metal.
__________________
2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
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04-19-2016, 01:26 AM
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#11
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Registered User
Join Date: Jun 2014
Location: LB, Germany
Posts: 1,512
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Pierburg has always a composite impellers. And this one is also cheap plastic. So wouldn't fit for me. 
Regards, Markus
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04-19-2016, 03:51 AM
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#12
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Registered User
Join Date: Dec 2012
Location: FL
Posts: 4,144
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Looks like composite to me, you should be good to go!
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04-19-2016, 06:27 AM
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#13
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Registered User
Join Date: Nov 2007
Location: Ontario, Canada
Posts: 42
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Great news. My memory was a little foggy. This pump has been sitting on the shelf for maybe 4 yrs.
Yeah, I procrastinate.
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04-19-2016, 07:57 AM
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#14
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Registered User
Join Date: Dec 2012
Location: FL
Posts: 4,144
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Quote:
Originally Posted by petee_c
Great news. My memory was a little foggy. This pump has been sitting on the shelf for maybe 4 yrs.
Yeah, I procrastinate.
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Do you have a new gasket? Some of the water pumps come with a felt or other type of gasket but for this one you want the OEM style metal gasket. If your original water pump is still on the car you will have to trim away the old gasket since it is shared with the oil pump housing. That is one way to tell if you are still on the original water pump when you remove it.
Lots of good details here:
Porsche Boxster Water Pump and Thermostat Replacement - 986 / 987 (1997-08) - Pelican Parts Technical Article
If you are down there it is a good time to replace the thermostat too.
Good luck with your project!
Steve
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04-19-2016, 09:35 AM
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#15
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Registered User
Join Date: Jan 2014
Location: Albuquerque, NM, USA
Posts: 743
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Quote:
Originally Posted by petee_c
OK. Is this metal or composite. It's a brown color impeller.
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Do you have a magnet?
__________________
Kent Christensen
Albuquerque
2001 Boxster
2007 GL320 CDI, 2010 CL550
2 BMW motorcycles
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04-19-2016, 09:36 AM
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#16
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Registered User
Join Date: Nov 2007
Location: Ontario, Canada
Posts: 42
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Magnet doesn't work on the housing or impeller. Definitely non-ferrous
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04-19-2016, 12:17 PM
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#17
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Registered User
Join Date: Jul 2014
Location: Listowel, Ontario, Canada
Posts: 1,120
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Quote:
Originally Posted by jdraupp
Jesus christ not again. SEARCH.
And please...don't ask about oil next.
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Wow, some of you guys are brutal! Maybe you would be more at home over at Rennlist??
__________________
2011 Boxster 987.2 Arctic silver / Black leather, PDK with Sports Chrono Package Plus
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04-19-2016, 03:40 PM
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#18
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Registered User
Join Date: Nov 2013
Location: Emerald City
Posts: 885
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Quote:
Originally Posted by Giller
Wow, some of you guys are brutal! Maybe you would be more at home over at Rennlist??
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Getting the same threads within a week of each other, almost to the letter, is brutal. It's common forum etiquette on every forum I've ever partaken in. Use the search function first. If you think I'm brutal you need to get some calluses.
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04-19-2016, 05:12 PM
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#19
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Registered User
Join Date: Jul 2014
Location: Listowel, Ontario, Canada
Posts: 1,120
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Quote:
Originally Posted by jdraupp
Getting the same threads within a week of each other, almost to the letter, is brutal. It's common forum etiquette on every forum I've ever partaken in. Use the search function first. If you think I'm brutal you need to get some calluses.
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You're the one swearing away and you are going to lecture on forum etiquette? And if you are all concerned with getting some calluses, maybe you should take your own advice and grow a calluse about all these same threads.
__________________
2011 Boxster 987.2 Arctic silver / Black leather, PDK with Sports Chrono Package Plus
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04-19-2016, 05:37 PM
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#20
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Registered User
Join Date: Nov 2013
Location: Emerald City
Posts: 885
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Quote:
Originally Posted by Giller
You're the one swearing away and you are going to lecture on forum etiquette? And if you are all concerned with getting some calluses, maybe you should take your own advice and grow a calluse about all these same threads.
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Swearing away? If what I've said offends you, you should really stay off the Internet. Or for that matter don't leave your home.
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