hacker-pschorr

PorKen

Imo000

People, start to save your old WP as potential cores when nothing but rebuild are available.

Mongo

I have only seen one person on here do a good water pump using a stronger bearing (Ed's double row); No other designs out there??? It's not rocket science. As for metal impellers, that's not 'old' either. Mercedes still uses metal impellers on their pumps and no 'grinding' issues with engine blocks.

SeanR

You are forgetting one critical aspect here Andy, our cars have our timing belt running on the water pump. That's not very common out in the world. There are much larger stresses on these than the standard Ford pump.

Mongo

No I'm not. The 928 is not the only car out there running a timing belt driven water pump though. Some VWs out there run them that way and maybe some Audis (even the 450HP RS6 TT V8) too. But, like I said, if we are dealing with pump production issues here, I would hope there is some alternative to making a more durable pump and bearing rather than rolling the dice on what is on the market from Geba or another manufacturer, no?

We have so many people here knowledgeable with these cars, why can't we all put our heads together to fab something better?

hacker-pschorr

It's called the Guardian Pump by Ed.

Oh wait, I forgot.... you want the smart people in the room to design you a bullet proof, 100,000 mile water pump that costs $99.

I talked to Turbo Todd about rebuilding a pump using the best possible bearing money can buy and all the "tricks" in his book to keep the impeller from moving and other preventative measures. At the end of the day when we crunched the numbers, his suggestion: "Just buy a new Porsche one, it's cheaper".

V2Rocket

"Someone" could make an "adapter plate" to fit the 928 engine block where the WP goes and use maybe a Ford 4.6 water pump with a suitable pulley...





or maybe a Buick 3.8 V6 pump...already the right general "shape"

Mongo

I like Ed's design. It definitely answers all the worries some of us have about seizing pumps. However, I'm not advocating a cheap fix for this issue. Never have been. However, why shouldn't a pump last 100,000 miles???

polecat702

If you purchase a Guardian from Ed, you don't have to worry about valves crashing, the block getting eaten by the impeller or bearing failure. You can inspect the coupler with out removing the pump. It's a no brainer!

I could of bought a new pump from Porsche, paid 3 times as much and it's still no better than a after market pump. Money was never an issue for me. If Ed's pump cost as much as the new pump from Porsche, I'd still buy Ed's pump! It's a superior product!

SeanR

Who says they won't last 100k? Leave yours on there for 100k and let us know how it goes. Could possibly be just fine. I've had some that were original with over 100k on them. They also had bearings made of gravel but that's the way it goes.

Mongo

Of course. Ed's pump addresses an issue that Porsche has not, and will not.

Mongo

I've never taken that chance on any 928 pump, not even on my Dad's old '85 back in the days. Every pump that has come out of the 928s we had owned had zero play at the maintenance intervals suggested for changing.

worf928

Dude. Seriously? WTF?

Right. This.

At - about - $200 more than the new Laso pumps are and 1/2 has expensive as a new Porsche pump, Ed's pumps are a figgen bArgain.


This. Ed's not lining his toilets in gold leaf from making us better water pumps. I would bet he's not even paying himself his standard hourly rate to make them. And he sure as h3!! isn't going to make back his time spent in inventing the damn thing even if every 928er buys one.

Anyone who thinks that the World OWES them a better water pump at $99 either doesn't understand economics or needs to study Marxism less.

SeanR

Now now, it just hasn't worked yet. Yet.