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  #1  
Old 10-24-2009, 12:08 PM
PhantomCadillac's Avatar
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Water pump 1984 300 CD

I'm replacing my water pump on a 1984 300CD. I bought a water pump from Phil and put it on. It is leaking from the weep holes.

What did I do wrong?????

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1985 300 TD GG done in by a red light runner
1984 300 CD Sold
2008 Titian
2000 Cadillac SLS
1966 FLH Sold
2003 Harley Ultra
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  #2  
Old 10-24-2009, 12:12 PM
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Unless you soaked the pump in acetone before installing it, there is not much you can do to cause the shaft seal to fail. Sometimes, all that is needed is a little "break in" period to stop the leak.
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  #3  
Old 10-24-2009, 12:18 PM
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The water flows like there is no seal in there.Is it possible I got a new bad pump? I hate to have to take it apart again.

Even though I'm getting quicker at it.
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Moss Gate Bed & Breakfast
1985 300 TD GG done in by a red light runner
1984 300 CD Sold
2008 Titian
2000 Cadillac SLS
1966 FLH Sold
2003 Harley Ultra
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  #4  
Old 10-24-2009, 01:14 PM
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Just make sure the leak is from the weep holes instead of anywhere else, could be a bad pump.
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84 CD
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  #5  
Old 10-24-2009, 02:03 PM
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It is the weep holes. I was adding water to the top radiator hose and noticed water running below so I covered the bottom hole with my finger and it started to come out of the top hole.
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Moss Gate Bed & Breakfast
1985 300 TD GG done in by a red light runner
1984 300 CD Sold
2008 Titian
2000 Cadillac SLS
1966 FLH Sold
2003 Harley Ultra
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  #6  
Old 10-24-2009, 02:08 PM
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My vote is for a bad pump. Someone forgot to put the seals in when it was rebuilt.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #7  
Old 10-25-2009, 08:43 AM
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Well I have managed to borrow a 84 300SD till I can get another water pump from Phil.
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Moss Gate Bed & Breakfast
1985 300 TD GG done in by a red light runner
1984 300 CD Sold
2008 Titian
2000 Cadillac SLS
1966 FLH Sold
2003 Harley Ultra
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  #8  
Old 10-26-2009, 12:08 PM
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Well I e-mailed Phil and new pump will be here Wednesday.

Phil You Are The MAN!

He wrote that this is the first time a Geba water pump has been bad. I hope the next one was put together by someone else.
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Moss Gate Bed & Breakfast
1985 300 TD GG done in by a red light runner
1984 300 CD Sold
2008 Titian
2000 Cadillac SLS
1966 FLH Sold
2003 Harley Ultra
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  #9  
Old 10-29-2009, 10:16 AM
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Well the pump arrived yesterday and I put it on. It took all of 35 minutes. The 300SD I had as a loaner was nice but I am so glad to be back in the 300CD.


Thanks Phil!

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Moss Gate Bed & Breakfast
1985 300 TD GG done in by a red light runner
1984 300 CD Sold
2008 Titian
2000 Cadillac SLS
1966 FLH Sold
2003 Harley Ultra
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