924Board.org

ATL_racer · Joined: 09 Aug 2005 Posts: 97 Location: Atlanta, GA USA

Ok,
i had replaced my water pump and the hose that runs from the bottom of the pump to the radiator. After this installation the system started leaking. I thought i hadnt tightened the clamp well enough on the hose that attackes up to the bottom of the water pump. I re attached is several times. The i figured maybe it didnt seal well and it was leaking from the seal. So i took it off and re-installed it. Still leaks.

I get up underneath the car and look up at the pump. There is a hole. There is a hole at the bottom of the pump about 1/8inch. It is a hole in the metal and the fluid "seems" to be coming out of it. Anyone know what im talking about or seen anything like it? I can take a picture and post it if someone tells me a good posting site and how to do it. I've got to get the car workign again.

i hope someone has a clue, b/c i sure dont.

Thanks alot
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late 1979 porche 924, red 2.0l NA 5speed snailshell
Plans: Restore exterior, revitalize interior, install killer sound system, run engine in stock form and have fun.(+ a short throw shifter if i can find one)

Belgian924t · Joined: 07 Jan 2006 Posts: 104 Location: Belgium

Hello,

for the image try www.imageshack.us
Is the pump OE or aftermarket?
It can be that it is an universal pump for the Audi-engine, and that the hole was intended for some other purpose on the general Audi engine, not the 924 type.

Greetz
_________________
'79 931 with Carrera GT look
'86 944 turbo (sold)
'88 944 turbo S (sold)
'85 911 Carrera 3,2 (to be restored)
'80 911 SC "SOLD"
http://www.cardomain.com/ride/2224272

Neil924 · Joined: 18 Mar 2003 Posts: 4225 Location: Canada

Perhaps it a 931 or a 944 pump. I remember hearing somthing about being able to just plug that hole, since the 924 doesn't use it. Search this board for "water and pump and hole" or somthing and see what turns up.

Neil924 · Joined: 18 Mar 2003 Posts: 4225 Location: Canada

From another thread.

"""

bkantelis · Joined: 07 Nov 2005 Posts: 50

We will plug the hole. Thanks to all for the quick replies.
Regards,
The DAD
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1979 NA 924
Georgia, USA

Diesel · Joined: 03 Nov 2002 Posts: 1061 Location: Ellington,CT

Don't plug the hole. That is the 'weep hole'. The purpose of it is to alert you when the seal inside the water pump has failed, letting the water wash the grease from the bearing. If you plug it, it won't leak, but your pump will die a nasty death probably leaving you stranded somewhere. Replace the pump.
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Dan Flanagan--2002 VW Jetta TDI, 83 Mercedes 300D,83 Mercedes Euro-240D

numbbers · Posted: Wed Jan 18, 2006 9:48 am Post subject:

Diesel has it right. That is the weep hole. It is standard on almost all water pumps. I replaced my original water pump at around 60K, not because it was leaking, but because I was doing a timing belt, and figured it was time to replace it. The replacement leaked from day one. 20K later, I finally got around to replacing the replacement. The new one leaks also. Both replacements were purchased at NAPA. I still have the original, and someday I am going to put it back in.
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1980 924 Turbo

Neil924 · Joined: 18 Mar 2003 Posts: 4225 Location: Canada

gohim · Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA

You guys are mixing up comments made about the 924/931 water pump, 944/924S water pump, and the 951 water pump.

New OEM 924/931 water pumps are still being made. they cost less than $100, so there is no excuse for buying poorly rebuilt or poor quality Generic water pumps like those made by GMP.

The original 944/924S style water pump without the belt support, and the 944/924S water pump with the belt support are no-longer being made by Porsche. Instead the 951 water pump is used for all 944/951 type engines with the aux water pump port for the 951 engines being blocked off.

The hole on the bottom of the 924/931 water pumps is a "weep" hole as already stated by someone else. IF coolant is coming from the weep hole, the water pump is no good, because the seals are leaking.

If this is a new water pump that is leaking, you need to remove it and return it to whoever you bought it from. If this is a used water pump, you got what you paid for.

bkantelis · Joined: 07 Nov 2005 Posts: 50

All,
Got it, the pump is no good. BTW, it is new from NAPA and has less than 90 days on it. I will return it as we have been chasing the leak since we installed it. I ordered a new OEM pump today.
Regards,
Bruce
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1979 NA 924
Georgia, USA

Diesel · Joined: 03 Nov 2002 Posts: 1061 Location: Ellington,CT

What a coincidence. The last NEW water pump I bought from NAPA was for my work truck, a Dodge with a 5.9 in it. It too leaked from the weep hole immediately. The boob behind the counter said I should drive it and see if it stopped.

_________________
Dan Flanagan--2002 VW Jetta TDI, 83 Mercedes 300D,83 Mercedes Euro-240D

gohim · Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA

Unfortunately the water pumps sold by NAPA are made by GMP. This is the company that I specifically mentioned as making very poor quality replacement water pumps. They are 100% junk. The GMP water pumps that I have seen are made to fit the original location, but the materials used were not the same as the original, and poor in quality. An example would be the untreated bare stamped sheet metal impeller on the one that I bought for my Ford Taurus 3.0L OHV engine. The original one was cast iron, and the Ford water pump lasted 100K miles. Good thing NAPA has a lifetime warranty on them. I returned the last one that I bought less than 2 months after I installed it. The bearings had blown out the seals already.