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Old January 5th, 2010, 20:12   #46
tditom
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here are the photos of the new Graf pump showing the areas of my concern:
[IMG][/IMG]

[IMG][/IMG]

[IMG][/IMG]

at this point i do not feel very comfortable installing it. i will be talking to the vendor about a refund/replacement and using a brass/resin unit.

i would like further opinions though. thanks in advance for any input. jasontdi- do you think this will be OK?
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Old January 5th, 2010, 20:15   #47
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Tom, you don't need advice from anyone else, you already know what to do with this POS. How did it get past even a rudimentary quality control check?
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Old January 5th, 2010, 20:17   #48
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That one is pretty bad. I'll admit that. Never seen one like that.
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Old January 5th, 2010, 20:19   #49
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wow looks like a volcano threw up lava on your impeller. OT: nice photos though
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Old January 6th, 2010, 10:17   #50
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thanks for your input, guys. the vendor is sending a replacement unit that he personally inspected.

hopefully all of the on-line vendors will begin inspecting the Graf pumps before shipping them out. seems to be a factory QC issue.
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Old January 6th, 2010, 11:28   #51
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Quote:
Originally Posted by jasonTDI
That one is pretty bad. I'll admit that. Never seen one like that.
Concur. I get a few that have a slightly rough impellers, but nothing like that.
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Old January 6th, 2010, 14:04   #52
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I know you're all going to jump on me but I personally believe that this pump would have provided adequate performance. What's the worst that'll happen, the engine heats up faster and the T-Stat opens earlier? Once the radiator is in the loop, you need a lot of extra BTU's to go over the system BTU removal capacity. This casting issue isn't going to effect it much. I'm unable to predict numerically any of this of course but my gut and experience tells me that this would be just fine in service.

Yes it might deposit a few little ferrous tidbits into the block over time but I can assure you over 100K miles there's plenty of little tidbits already in the cooling system loop anyways...

Would I install this on my daily driver, probably. Would I install this on a dedicated race car that's at full load for hours on end? Probably not.

I did a quick search on shrouded impellers and the effects of poor blade surfacing on a twisted vane design and didn't come up with much, but then again I only spent about 2 minutes before something else grabbed my attention...

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Old January 6th, 2010, 14:28   #53
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jgg, ya wanna buy a water pump- cheap?
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Old January 6th, 2010, 16:29   #54
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Let me see:

Laso pumps are now no good.
Graf pumps have QC issues.
OEM plastic pumps are trash.

Uhm...that doesn't leave a lot of choices now, does it? Like I said, I have had no issues with my graf. Drive more, worry less.
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Old January 6th, 2010, 16:37   #55
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Quote:
Originally Posted by turbocharged798
Let me see:

Laso pumps are now no good.
Graf pumps have QC issues.
OEM plastic pumps are trash.

Uhm...that doesn't leave a lot of choices now, does it? Like I said, I have had no issues with my graf. Drive more, worry less.
are you suggesting that i should go ahead and use the pump pictured above?
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Old January 6th, 2010, 16:47   #56
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I only use GEBA coolant pumps unless the owner has a specific perferance :
http://www.geba-autoteile.de/Geba-englisch.wmv
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Old January 7th, 2010, 00:16   #57
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Quote:
Originally Posted by Herm TDI
I only use GEBA coolant pumps unless the owner has a specific perferance :
http://www.geba-autoteile.de/Geba-englisch.wmv

How long have you been installing these?

Any failures?

Are these available for the BEW engine?

.
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Old January 7th, 2010, 05:10   #58
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Quote:
Originally Posted by phaser
How long have you been installing these?

Any failures?

Are these available for the BEW engine?

.
I started using the GEBA pumps over a year ago. So far, not a single problem.
I can't get the GEBA for the BEW but the Saleri pump is on the market.
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Old January 11th, 2010, 18:40   #59
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i did my timing belt this past weekend after receiving the replacement Graf pump. Here are some photos i took of that before installation:
[IMG][/IMG]

[IMG][/IMG]

Here is the Laso pump that had been in operation for the last 100089 miles:
[IMG][/IMG]
[IMG][/IMG]

Finally, here are some shots of the OE pump that was in operation for the first 155K mi on this car (what can i say- i'm a packrat ):
[IMG][/IMG]
[IMG][/IMG]

after seeing the variation from one to the next, and noting the differences in finish and design between the three, i'm inclined to look for the resin Saleri unit for the next belt job i perform. If that is not available i will be looking for a brass unit. I would not buy another Graf. I don't trust their QC at all.

i found a Saleri 'plastic' unit here for $60: http://www.drivewire.com/vehicle/vol...lf/water-pump/
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Old March 13th, 2010, 10:16   #60
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So is the the timing belt kit from DG still using the Laso brass impeller water pumps? Their website says it is still a brass impeller, but have they simply not updated it?
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Last edited by GgOTi; March 13th, 2010 at 10:27.
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