Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 08-17-2013, 05:31 PM   #1
Registered User
 
heymanwatchthis's Avatar
 
Join Date: Jul 2013
Location: Asheville, NC
Posts: 101
How much play in water pump is OK?

I have done a lot of research here and other places regarding water pumps, however cannot find guidance on what I think is early indication of water pump failure.

My '01 986S has developed a sound over the past couple of weeks that has increased intensity, is a constant whirr that follows rpm. Sounds sort of like very noisy tires (not the cause as the sound goes away when coasting).

Sound seems to come from passenger side front area of engine. I suspected something associated with the serpentine belt, so I checked it out.

All the pulleys seem good, except the water pump has some play in it. When I grab the pulley and yank it back and forth, there is a little knocking sound and it seems to move about .5mm (swag). No leaks that I can see.

Is some play allowable in a water pump at the pulley, or should it be completely tight?

Much appreciated!

Gary
heymanwatchthis is offline   Reply With Quote
Old 08-17-2013, 06:03 PM   #2
Registered User
 
Join Date: May 2011
Location: Miami florida
Posts: 1,591
The water pump should have no play. Take the Serp belt off when the car is cold, start the car and if the sound goes away, its something the serp belt is driving, the wp, compressor etc. Put the serp belt back on and listen to all the accessories with a stethoscope. It will be apparent what accessory is making the noise.
__________________
Current car

2000 Boxster 2.7l red/black

Previous cars

1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
san rensho is offline   Reply With Quote
Old 08-17-2013, 07:54 PM   #3
Registered User
 
tonycarreon's Avatar
 
Join Date: May 2009
Location: Frederick, MD
Posts: 1,396
that's what happened to mine. the impellers didn't tear apart, but there was a wobble in the pump and a weird noise that got worse as the RPMs increased.

get it replaced ASAP before it's too late.
__________________
"Speed has never killed anyone, suddenly becoming stationary... that's what gets you."
tonycarreon is offline   Reply With Quote
Old 08-17-2013, 08:46 PM   #4
Registered User
 
thom4782's Avatar
 
Join Date: Sep 2010
Location: Foster City CA
Posts: 1,085
+1 on replace water pump. If it wobbles and the impellers chip, the loose pieces will cause you lots of headaches especially if they block a water channel in the engine.
thom4782 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 02:54 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page