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CC Advertisers
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12-11-2008, 10:40 AM
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CC Member
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Join Date: Oct 2003
Location: Saratoga Springs,
UT
Cobra Make, Engine: Shell Valley, 418W, tremec 3550tko, 9" ford rear, 3.0 gear, silver/black
Posts: 408
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Not Ranked
351W Water Pump Leakage
I noticed this last year when hibernating the Cobra for the winter and it is doing it again so I thought I would ask you folks in the know what is going on!
After the engine has not been run for a few days (10) there is a VERY slow leak from the hole in the bottom of the water pump! I drove the Cobra this past Saturday and so far no leak but it will start again in a few days. It makes a spot on the floor about 4" in diameter and pretty much stays that size.
Is this to be expected or is it time to change the WP?? The pump has a bit over 16K miles on it!!
__________________
Terry
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12-11-2008, 10:50 AM
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CC Member
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Join Date: Jan 2005
Location: Hillsboro,
OR
Cobra Make, Engine: Scratch built CSX style frame, Carbon fiber body, 393 Stroker, T-bird IRS, T5
Posts: 1,623
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Not Ranked
Sounds like time to change the water pump Terry. Any water coming from the weep hole in the bottom of the water pump usually indicates the impeller packing is going bad. The way these cars are driven and then parked for the winter, it isn't too surprising the packing will go gunnysack fairly quickly. I think they dry out from being parked, then don't completely come back to original condition when driven so a couple seasons and they are toast.
Look at it this way, at least you can change it on your time frame instead of being stranded in the middle of nowhere...
Bob
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12-11-2008, 10:56 AM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
The mechanical seal for the shaft is begining to fail.
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
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12-11-2008, 03:23 PM
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CC Member
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Join Date: Oct 2003
Location: Saratoga Springs,
UT
Cobra Make, Engine: Shell Valley, 418W, tremec 3550tko, 9" ford rear, 3.0 gear, silver/black
Posts: 408
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Not Ranked
That is what I was thinking!! Better to do it while its cold and not driving than on the side of the road somewhere when its hot!!
__________________
Terry
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12-12-2008, 03:12 PM
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CC Member
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Join Date: Oct 2004
Location: Saratoga Springs,
UT
Cobra Make, Engine: FFR 3850, 95 Cobra 5.0 EFI, IRS, Pin Drive 15" real Magnesium Halibrands & Vintage Wheels, Billboards & Mickey Thompson S/T tires, Blue/Wht Stripes, Hoops, CSX Dash, Konis, VPMs, Torsen
Posts: 626
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Not Ranked
418
Terry,
That 418W is warn out, shot, gone. 
Pull it and drop it off at my place...no charge.! 
You can even use my engine puller!
Your good neighbor,
Larry |
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