SeanR

Much like "what oil should I use", water pump threads usually turn to trash. So why not add one more.

Last December I let a long time customer supply his own parts, against my better judgement. He bought a Geba pump since it was the cheaper one compared to a Laso or Porsche pump. This is the single Geba pump I have installed and it was leaking after about a month. I had hoped for his sake that I goofed and scored the gasket when assembling it. If that had happened I would have covered the entire job. Customer parked it until I could get to it and today was tear down. Water was shooting out the weep hole and around the bearing cartridge. Bearings rotates well but the belt shows wear which I can only guess at and am guessing that as it got hot it started to bind up. Everything is new.



I really hate using cheap *** parts and won't from here on out, no matter how much people complain.

ROG100

This is the only GEBA pump that I have sold so the track record is not looking good at all.
Customer would not pay for the Laso pump (circa $400) and I agreed to sell him the cheap pump on the understanding that I would not warranty it.
This could get messy.

Ducman82

....yay!

GlenL

I'm curious...

Do you southern guys run 50/50 antifreeze and which coolant or additives do you use?

hacker-pschorr

SeanR

50/50 from concentrate. Either G-05 or the Green Prestone. Why would we use additives? I like my money in my pocket.

worf928

Can the Geba cores be Laso'd <sic> for use as a Guardian rebuild or are they rotten Hamburg that should just be thrown away?

FredR

Roger,

Absolutely no reason why it should get messy from your [or Sean's] point of view. You laid it out clear, the owner took a chance- tough- but that is life.

I have taken a number of recommendations from you and they have all been perfect to date but even if you recommended something that failed and it was a non Porsche item I would take it on the chin as it would have been my decision to do so. I might inform you something had failed for your awareness but that would be the end of it.

I was under the impression that Geba had been supplied in significant numbers but the metal impeller does not appeal to me whilst there is an option. Even the original Porche pump failed on me in the 90 S4 just after I acquired it [50k miles/ 8 years old] when the impeller took a walk.

Rgds

Fred

GregBBRD

Anpther example.

For the price of the labor to redo, he could have easily bought a factory water pump and never had an issue.

Aftermarket water pump, aftermarket belt, aftermarket tensioner = job security for 928 mechanics.

The only thing tough to know is which one is going to fail first.

SeanR

This was the Conti belt he provided. Checked tension before tearing down and it was at the lower portion of the Kemph tool.

dr bob

Sean --

Any evidence that the impeller was rubbing on the block? Your picture shows no apparent contact but thought I'd ask.

GEBA should warranty the pump if this is infant mortality. I'd send a them a claim for the labor too just to see what happens. A failed shaft seal in properly-lubricated (by the coolant) service definitely puts the pressure on them for the early failure.

-----

SeanR

I think that's just the lighting, no contact that I can make out. I'll leave it up to Roger to deal with Geba on that.

Forgot to add, the belt had 1300 miles on it.

AO

1300 miles... Yikes that bad.

GregBBRD

The back side of that belt doesn't appear to be very happy....those scratches look like my cats were playing with it.

Did you compare the reading on the Kempf tool to your 9201 tool....that would be valuable information.

I don't have a Kempf tool. I've had one in my hands to look at, but I've never used one.....for pretty logical reasons.

The "window" of adjustment range is very tiny on the Kempf tool, while the reading from the 9201 tool is much more defined and over a much larger measuring area. I'm installing and tensioning belts to within .1 (5.0+/-.1 on "late design" timing belts) tolerance on the 9201 tool...I don't see how it is possible to obtain that kind of tolerance using the Kempf tool. I sincerely doubt that this tool will get one within 1.0 "Porsche belt units" of being correct.

I've always considered this tool to be like using a wooden yardstick instead of a micrometer to measure the size of a crankshaft......it can be done, but it isn't going to be very darn accurate.

SeanR

I did not. Knew it was going to come off and in the trash so didn't want to get my 9201 dirty. I did use it when I put the belt on a few minutes ago though.

I've found the kemph tool is really close when at the tight side of the window, it sits about 5.0 to 5.2 at the edge of the window. That's why the cars get warning lights when people set it to anywhere but the back of the window. Got two of the Kemph tools and they are right on when using all 3. I use the kemph for quick and dirty checks.