996 water pump failure with pics
09-24-2015, 01:32 PM
#47
Thankfully, European car manufacturers, including Audi, don't use Durethan water pump impellers anymore! Starting around 2000, a new advanced material called PPS was progressively integrated into Audi water pump impeller design and now nearly all new Audis and VWs come from the factory with PPS water pump impellers."
09-24-2015, 01:44 PM
#48
Rennlist Member
09-24-2015, 01:47 PM
#49
Drifting
Rubik nailed it.
Show me an ad for any M96 WP with "PPS" mentioned.
I previously listed all the VW/Audi WPs that are PPS. None from Porsche.
Euro recycling laws require the plastic parts be marked with the type of plastic so "PPS" is a valid identifier.
Conclusion- until the impellers are marked PPS ,keep changing the WP every 50k ??
Show me an ad for any M96 WP with "PPS" mentioned.
I previously listed all the VW/Audi WPs that are PPS. None from Porsche.
Euro recycling laws require the plastic parts be marked with the type of plastic so "PPS" is a valid identifier.
Conclusion- until the impellers are marked PPS ,keep changing the WP every 50k ??
09-24-2015, 01:54 PM
#50
That's your call/judgement and that's open to a whole another debate which has been going on for ages. I'll leave it at that. For me, I buy from Porsche on something like this. It doesn't make sense to me to save $20-$30 for something I'll probably only change out once or twice at most in my ownership.
09-24-2015, 01:56 PM
#51
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That's your call/judgement and that's open to a whole another debate which has been going on for ages. I'll leave it at that. For me, I buy from Porsche on something like this. It doesn't make sense to me to save $20-$30 for something I'll probably only change out once or twice at most in my ownership.
09-24-2015, 02:11 PM
#52
WTF is going on - the material they use might break off and block your engine and cause it to overheat - the very thing it's supposed to not be doing.
What did they use years ago on cars?
Because then, usually, all that went wrong was the bearings in them - which you could hear with the screeching noise they made.
Is it because these things are being made cheaper and cheaper and that they do not last as long?
I would think you are better off with metal which can stand the temperature changes better.
What did they use years ago on cars?
Because then, usually, all that went wrong was the bearings in them - which you could hear with the screeching noise they made.
Is it because these things are being made cheaper and cheaper and that they do not last as long?
I would think you are better off with metal which can stand the temperature changes better.
09-24-2015, 02:18 PM
#53
Rennlist Member
09-24-2015, 03:50 PM
#55
If it's EXACTLY the same part, I have no problems with it if I know for sure. Otherwise if I have to guess at it for something this critical, I'd rather error on the side of caution. I know just because a part manufacturer makes a certain part for a car manufacturer doesn't always mean they are indeed the same exact parts. Sometimes but not all the time.
09-24-2015, 03:58 PM
#56
Three Wheelin'
If it's EXACTLY the same part, I have no problems with it if I know for sure. Otherwise if I have to guess at it for something this critical, I'd rather error on the side of caution. I know just because a part manufacturer makes a certain part for a car manufacturer doesn't always mean they are indeed the same exact parts. Sometimes but not all the time.
If it looks like a duck
walks like a duck
smells like a duck
pretty good chance it is a duck
I guess you would only buy the ignition switch from Porsche even though both the Audi and VW part are exactly the same. Which would you rather pay, $125, $70 or $30?
09-24-2015, 04:12 PM
#57
09-24-2015, 04:34 PM
#58
Three Wheelin'
Jake,
Explain to me why Porsche water pumps are so junky? When I had my Acura at the shop for the 2nd TB change 6 months ago, I spoke to their mechanics about what fails or what doesn't if you don't do the TB service. Mechanics told me that they almost never see a WP failures, and they have seen cars that went 200k miles on the original WP and original TB with zero issues.
Explain to me why Porsche water pumps are so junky? When I had my Acura at the shop for the 2nd TB change 6 months ago, I spoke to their mechanics about what fails or what doesn't if you don't do the TB service. Mechanics told me that they almost never see a WP failures, and they have seen cars that went 200k miles on the original WP and original TB with zero issues.
09-24-2015, 04:38 PM
#59
I like genuine parts. Less variables to worry about for DIYers. A genuine water pump is $260 from Sunset. It's a little more expensive but considering how critical the part is and how infrequent I need to change it... Targeting replacement every 5yrs. My 10yr old pump was fine when I removed it but my coolant was very fresh due to a couple of coolant changes thanks to the crappy expansion tanks. I also like to do a complete coolant flush every 4yrs.
09-24-2015, 04:42 PM
#60
Jake,
Explain to me why Porsche water pumps are so junky? When I had my Acura at the shop for the 2nd TB change 6 months ago, I spoke to their mechanics about what fails or what doesn't if you don't do the TB service. Mechanics told me that they almost never see a WP failures, and they have seen cars that went 200k miles on the original WP and original TB with zero issues.
Explain to me why Porsche water pumps are so junky? When I had my Acura at the shop for the 2nd TB change 6 months ago, I spoke to their mechanics about what fails or what doesn't if you don't do the TB service. Mechanics told me that they almost never see a WP failures, and they have seen cars that went 200k miles on the original WP and original TB with zero issues.
Acura's WPs use metal blades and they seldom fail like you said.
Compared to Jap, German are not good at making:
- window regulators
- door lock actuators
- water pump
- radiators
- any electronics
