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9/7/10 12:42am - Original Message: 'Water pump weep hole'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
How much water is supposed to come out of the weep hole in the water pump?  A few years ago (probably only 200 miles or so) I replaced my water pump.  Before installing it I painted it Chevy orange.  I have everything apart again because I am doing my timing chain.   Noticed that all the paint is flaking off on the bottom of the pump by the weep hole.  Is it OK to reuse this pump?  Mileage wise, it's brand new and the engine it's cooling is basically stock.  I was just going to repaint and put it back on.  Any suggestions for a more effective painting method?  

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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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9/7/10 8:07am - Reply: 'Water pump weep hole'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19447
There should be NO leakage at the weep hole. That hole is there only to keep from having a vacuum in between the  pump seals and the front bearing. Any leakage out of that hole indicates the wp seals are not sealing.
IS the paint simply coming off due to a bad paint job, or is there evidence of leakage? If it IS leaking, it should be replaced...mileage is no indication of a good pump, and it's much easier to fix it now than it will be once you get it all back together, and waaaay easier than trying to replace it on the road somewhere...


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Joel Adams
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9/7/10 8:52pm - Reply: 'Water pump weep hole'
Ron 78 Lifetime Member
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BINGHAMTON, NY - USA

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Joined: 7/19/2003
Posts: 3805
It's to change that sucka LOLThumbs Up

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9/8/10 1:25am - Reply: 'Water pump weep hole'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
It could be a bad paint job, but it looks like there is a trail of corrosion from the weep hole on down and only the paint near that corrosion is flaking off.   The pic shows it pretty well - I already scraped off most of the flaking paint.  

Any thoughts as to why?  Did I just get unlucky or do something wrong?  Guess it's not the end of the world, lots more expensive parts can fail, it's just I've been on a spending spree lately with this car and it adds up quickly Cry




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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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9/8/10 8:11am - Reply: 'Water pump weep hole'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19447
It's definitely leaking.
Sometimes, a new/reman pump will seep a bit until it is run for a while, and the seal gets seated fully. At 200 miles tho, it shouldn't have anything leaking out there. My suggestion is to replace that pump...chances are that if you re-use it, it's gonna leak like a sieve...
It may have just been a pump that wasn't properly assembled, or had an iffy seal to start with. It happens.


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Joel Adams
C3VR Lifetime Member #56    
My Link


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             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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9/8/10 1:54pm - Reply: 'Water pump weep hole'
my7t1 Lifetime Member
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Dorr, MI - USA

Vette(s):
71 Colonnade Hardtop Coupe Torch Red with black interior originally L48 built to push around 360hp

Joined: 8/21/2002
Posts: 2580
The guy's are right. It needs replace. Owning a cooling system business every once in a while I will get a reman that leaks, so a do-over is necessary.Censored That's why I spend a little extra for new. Sometimes the price difference isn't that much. Its worth paying a little x-tra $ to avoid headaches. "T"

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9/9/10 1:51am - Reply: 'Water pump weep hole'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Yep, I'm going to replace it.  I don't think it was a reman, though.  I just looked on AdvanceAuto parts and a 

GMB New Water Pump


is only $32.00.  I found my old receipt and that's about what I spent last time.  I haven't even seen any remans in my various searches.   Am I buying what I think is new and actually getting a reman? 

Thanks for the advice, guys.  




____________________________________

 

1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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9/9/10 9:50am - Reply: 'Water pump weep hole'
my7t1 Lifetime Member
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Dorr, MI - USA

Vette(s):
71 Colonnade Hardtop Coupe Torch Red with black interior originally L48 built to push around 360hp

Joined: 8/21/2002
Posts: 2580
I have used Advance Auto pumps and haven't had a problem that I can remember. You should be fine.

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9/9/10 11:46am - Reply: 'Water pump weep hole'
VetteSpecialties
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Mounds View, MN - USA

Vette(s):
70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe

Joined: 5/24/2007
Posts: 1031
We only sell the original GM pumps.  That way we know we will not have a problem.  They are more expensive, but if you consider the work in replacing a bad one, I think well worth it.  I assume you know you should either use anti-freeze or a coolant traetment in you system at start-up.

Larry


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Corvette Specialties is your best source for Corvette parts, accessories and gifts. www.CorvetteSpecialties.com

   





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9/13/10 10:11pm - Reply: 'Water pump weep hole'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Took a chance and went with another GMB.  I had saved the receipt (turns out it was actually five years ago) and it had a lifetime warranty.  Local parts store took the old one in on warranty.  Hopefully this one works out better than the last....

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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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9/14/10 12:59pm - Reply: 'Water pump weep hole'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19447
[QUOTE=daveo76] ...turns out it was actually five years ago[/QUOTE]

doh

I'm glad I'm not the only one with a memory problem!!!
Glad they took care of it!




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Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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9/14/10 3:22pm - Reply: 'Water pump weep hole'
dskopp
Former Member
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

Joined: 5/21/2008
Posts: 1956
Memory??  Joel has a memory????? lol
DanRolling On The Floor Laughing
Maybe I will see you towards the end of October, you and Mickey.  Hangmans House of Horror in Ft Worth!!
dskopp2010-09-14 12:23:39

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9/15/10 12:17am - Reply: 'Water pump weep hole'
daveo76
Standard Member
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Yep, funny how time flies.  Seems like it was just last spring that I was doing that water pump R&R.  I bet that sucker leaked a little from the get-go though.  Censored

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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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