Not to beat a dead Porsche horse, but reliability...

[Perfectlap]

Originally Posted by WhipE350

Clearly there are threads that do spread fear. Possibly it was correct when it comes to single row IMS but certainly not double row. And replacing water pumps every 3 years with as little miles as these cars drive.

Owners who let a dual row car sit for long periods, registering little mileage while infrequently chaging the oil would be mistaken in brushing off the IMS issue because they have two rows. Give a dual row bearing enough time and it will catch up to a single row on failure.


As far as the waterpump, I think its more an issue of mileage.

[WhipE350]

Originally Posted by Perfectlap

Owners who let a dual row car sit for long periods, registering little mileage while infrequently chaging the oil would be mistaken in brushing off the IMS issue because they have two rows. Give a dual row bearing enough time and it will catch up to a single row on failure.


As far as the waterpump, I think its more an issue of mileage.

I don't think there is data to prove this. The previous owner of my car changed the oil every 12 to 15k miles and sometimes the car sat for years without driving it. My double row was fine. Even the class action filed shows double rows to be much less of an issue. Who knows, these are just my thoughts .

[Perfectlap]

Originally Posted by WhipE350

I don't think there is data to prove this. The previous owner of my car changed the oil every 12 to 15k miles and sometimes the car sat for years without driving it. My double row was fine. Even the class action filed shows double rows to be much less of an issue. Who knows, these are just my thoughts .

certainly no data but look at the causes of single row failures... a dual row's fortification does not eliminate these, they simply better endure.

Which means a dual row bearing is simply afforded more time to replace it. The timing of the lawsuit has come when most Boxsters are only now creeping over 100K miles. Those dual row cars that have been neglected and are still on their factory bearing will start to fail with far greater frequency over the second 100K miles. So Porsche's timing in settling this matter could not have been better.

[evo-r]

Originally Posted by Perfectlap

Owners who let a dual row car sit for long periods, registering little mileage while infrequently chaging the oil would be mistaken in brushing off the IMS issue because they have two rows. Give a dual row bearing enough time and it will catch up to a single row on failure.


As far as the waterpump, I think its more an issue of mileage.

Off topic, at what mileage should one replace their water pump?

[Perfectlap]

Originally Posted by evo-r

Off topic, at what mileage should one replace their water pump?

I believe Flat6 have posted that it should be done every 50K miles. Or maybe that was Wayne Dempsey in "101 Projects for Your Porsche Boxster". Mine lasted 80K miles. But I think the logic is to replace it while its still in its 'sweet spot' and not on the downslope. Seems like airline maintenance logic -- hence why flying is by far the safest mode of travel.

[Jake Raby]

Originally Posted by Perfectlap

I believe Flat6 have posted that it should be done every 50K miles. Or maybe that was Wayne Dempsey in "101 Projects for Your Porsche Boxster". Mine lasted 80K miles. But I think the logic is to replace it while its still in its 'sweet spot' and not on the downslope. Seems like airline maintenance logic -- hence why flying is by far the safest mode of travel.

I have never stated any mileage for water pump replacement. Thats because the pump is in service 24-7 whether the engine is operating or not. Its purely time based and my directive is every 36 months for my engines.

Cooling system flushes carried out annually extend life, because the Ph level of the coolant is what attacks the pump and leads to failure. Distilled water is also a key to keeping Ph levels in check longer.

We are working with JGR and Lubrizol on a conditioner for the cooling system that will help to keep the Ph level down and double as a lubricant for the pump. It just takes forever to gather real data that proves that it actually does work.

[fatmike]

I drove my S for 6 years and 60,000 miles as a daily driver (my only car). In the rain, snow (and some sun) of the Northeast.

I paid slightly more than average for routine maintenance. I was very pro-active with things such as oil, filters, belts, spark plugs, etc. I did have a few things go wrong during ownership (wheel bearing, coolant, ignition switch etc.), but these things were know weak spots and were easily addressed.

When I first got the car, the check engine light wanted to come on and stay on. The solution was some techron and just drive it.

In the end, I sold the Boxster for $12K less than what I bought it for. So, that is $2K per year in depreciation.

You can't do much better than that with any car.

Overall, this car was an A+ for me.


/