04-04-2014, 11:44 AM
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#21
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Registered User
Join Date: Jun 2012
Location: Ontario,Canada
Posts: 84
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So am i correct in thinking that all stock porsche autos have plastic impeller pumps installed from the factory or were ther some years that did not.I have approx 60,000 miles on my 06 BoxsterS with the original pump,i did cheak it in the fall before storage and there was a very small amount of play in the pully,maybe 1 mil,is that exceptable.Thx
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04-04-2014, 12:17 PM
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#22
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
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Quote:
Originally Posted by moresquirt
So am i correct in thinking that all stock porsche autos have plastic impeller pumps installed from the factory or were ther some years that did not.I have approx 60,000 miles on my 06 BoxsterS with the original pump,i did cheak it in the fall before storage and there was a very small amount of play in the pully,maybe 1 mil,is that exceptable.Thx
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Porsche experimented with metal impellers on a small number of the M97 equipped cars, but almost immediately stopped using them for the same reasons discussed here and switched back to composite impellers.
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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04-04-2014, 12:59 PM
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#23
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Registered User
Join Date: Jul 2008
Location: austin
Posts: 824
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Quote:
Originally Posted by moresquirt
So am i correct in thinking that all stock porsche autos have plastic impeller pumps installed from the factory or were ther some years that did not.I have approx 60,000 miles on my 06 BoxsterS with the original pump,i did cheak it in the fall before storage and there was a very small amount of play in the pully,maybe 1 mil,is that exceptable.Thx
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Small play does not stay that way for long -- as soon as it worsens -- that plastic impeller is in jeopardy -- or the whole pulley can come off (seen it twice).
I would plan on replacing the WP as spring maintenance.
Mike
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Drivers: '15 Panamera Hybrid (wife's), ' 01 996 GT2, 00 Boxster S, '96 993 Çab/Tip (wife's)
Race Cars: '75 911 RSR Replica & '99 Spec Boxster
mike@lonestarrpm.com
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04-11-2014, 04:44 AM
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#24
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Registered User
Join Date: Mar 2013
Location: Long Island, NY
Posts: 378
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Sorry for my ignorance, so how do I determine if I need to replace my water pump? Play at the pump pulley and sound at start-up? what kind of sound exactly? Thanks!
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His: 2003 Boxster & 2008 MDX
Hers: 2011 Golf TDI
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04-11-2014, 04:58 AM
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#25
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Registered User
Join Date: Jul 2008
Location: austin
Posts: 824
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Quote:
Originally Posted by evo-r
Sorry for my ignorance, so how do I determine if I need to replace my water pump? Play at the pump pulley and sound at start-up? what kind of sound exactly? Thanks!
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I look for seepage on the bottom of the pump -- yellow crusty material
and I check for play on the pulley itself with the serpentine belt removed.
Mike
__________________
Drivers: '15 Panamera Hybrid (wife's), ' 01 996 GT2, 00 Boxster S, '96 993 Çab/Tip (wife's)
Race Cars: '75 911 RSR Replica & '99 Spec Boxster
mike@lonestarrpm.com
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04-11-2014, 08:00 AM
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#26
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Registered User
Join Date: Aug 2011
Location: Chicago
Posts: 475
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Quote:
Originally Posted by evo-r
Sorry for my ignorance, so how do I determine if I need to replace my water pump? Play at the pump pulley and sound at start-up? what kind of sound exactly? Thanks!
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Mine was kind enough to notify my through a slow coolant leak...
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Some kind of happiness is measured out in miles
2003 Midnight Blue S
LN IMS Retrofit
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09-21-2014, 07:55 PM
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#27
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Registered User
Join Date: Sep 2013
Location: California
Posts: 25
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Update on the water pump replacement :
As seen on the original post here, the water pump impeller disengrated, and I went with a metal impeller replacement from Autozone - lifetime warranty. That was at 140,000 miles. Two weeks ago, I heard a ticking in the motor, got the stethoscope out, and pinpointed to the water pump. The car now has 152,000 miles on it, six months latter. I purchased original Porsche part, and replaced the metal impeller water pump this weekend. The pump had play, slight leakage, the water level down about a 2cm. No rubbing, scrapping apparent on engine, so I am happy about that.
So yes, as most here noted, best not to fool Mother Porsche - stick with the correct parts. The nice thing is I did get a full refund from Autozone, so kuddo's go out to them.
At the end of the day though, this seems to be a bearing problem. Is there any development for a good bearing that can take the load of the belts, no lubrication, but have a pretty consistent operating temperature, and perform with very tight tolerances for a longer time?
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09-22-2014, 05:19 AM
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#28
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Registered User
Join Date: Jul 2009
Location: Arlington Heights, IL
Posts: 1,561
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Quote:
Originally Posted by seawind
Is there any development for a good bearing that can take the load of the belts, no lubrication, but have a pretty consistent operating temperature, and perform with very tight tolerances for a longer time?
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Yes. Go talk to Jake. He's been there done that, too and got the t-shirt. It was a $1,000 water pump. No one wanted to pay for it.
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09-22-2014, 06:44 AM
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#29
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Registered User
Join Date: Jun 2012
Location: Bedford, TX
Posts: 2,712
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Great information, thanks for posting this. You get what you pay for - sometimes.
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2001 Boxster S Lapis Blue
TS Cat Bypass Pipes and exhaust
iPad Mini Dash Install
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