No need to lose your panties. I'm going to be presumptuous again and assume we're on the boards to share information.

To that end, before this thread goes to sh*t.

Great article from a well respected source on a topic that doesn't really effect out cars - http://www.callasrennsport.com/wp-co...lant-Lines.pdf

 

lose my panties?! **** you pal. "presumably" we are here for similar reasons. i just view this as more of a creative writing and reading comprehension exercise than you do. clearly.

oh, and btw..merry x'mas.

 

mine let go at 90k miles, never tracked, was on a Sunday drive and pop, dumped the coolant.
I ended up pinning all the hose outlets with the engine in the car, yes it can be done but you need to lower the engine to max and remove a lot of the bolt ons from the top of the engine, lot of work, would be better to drop the engine.

regards
mike

 

i have a similar anecdotal rememberance of a member here with whom a couple of us were meandering up a coastal canyon road at no more than 50 mph, and his just let go. they don't give warning, that's for sure.

 

Let go on an onramp at 49k, no track since I picked it up at 35k.

 

While I agree with some and wouldnt have welded mine unless i tracked as much as I do. There are plenty of people who dont post on 6speed. I know of 2 failures locally of guys who dont post. Cant remember mileage though.

 

It's definitely an issue, more so for us that have witnessed it first hand.

Some of us like to do maintenance proactively. Others deal with things as they come. I'm not going to sit on my high horse and say one option is right or better. It's a personal choice. And depending on the item, or car, I will weigh the likelihood and impact when making a decision.

I take pride in ownership for all my cars, but especially my Porsche.

Here's how I look at the issue:
likelihood - medium
impact - medium/high

Since my motor is coming out for upgrades, I'm taking the opportunity to address it.

 

sounds like a prudent thing to do. i imagine i'd do the same thing if my motor were out, given i've witnessed them letting go firsthand myself, and have said as much. i just don't believe in the necessity of a "proactive" solution being necessary, and am now merely repeating myself.

though i will add that sitting atop horses, whatever their height, have nothing to do with any of this and refusing to believe that coolant pinning is in fact pre-emptively necessary, is at the very least a misuse of your metaphor lol.

i would say that re-doing them makes more sense than not, and that said, while sitting in an easy chair. i think the only reason preemptively re-fitting them makes certain sense is to qualify for the aforementioned sanctioned track events that require them having been re-done..

i'm also confident we will see 996 turbos approaching 300+k miles and over, without them having failed.

 

Mine let go last year while driving on the freeway. It is a 2003, had 50k on it and had never been tracked. When the shop got the engine out, they found that 3 fittings were loose. I had all of the fittings repaired by knurling the fittings and jb welding them in place. I also took care of a lot of other items like a new clutch, belts, hoses, plugs, coil packs, etc. Looking back, I had been smelling coolant after pulling into the garage after a drive. I would always look for a leak, however, I never saw a drop of coolant anywhere. I guess the odor was coming from hot coolant and loose fittings.

 

Sorry, Noob question here, but it sounds like the coolant pipes are made of metal, hence the ability to weld them? So I won't just be able to upgrade the pipes.

 

good for you. exactly what i would do under similar circumstances.

 

How many people have seen the crust or crud that forms around a slowly leaking fitting? Just wondering, as my fittings have not been done yet (47K) and wondering if there is indication for failure.

 

You might see a crust, I've seen pictures of fittings that haven't blown ONLY because the tension of hoses attached prevented it but weep they did. More than one person has pulled their's apart and found fittings finger tight and wiggling when tugged on.

As for upgrading the pipes - there are repair fittings in both stainless and aluminum that have been made. The metal they insert into isn't the greatest for welding and two pieces of pot aluminum together are probably even worse so using machined fittings could arguably be a good idea.

Personally, if my motor EVER comes out this is being addressed. Some can claim it's rare but I've heard about it happening from multiple people and of my close friends I think I'm the ONLY only one who hasn't addressed this on their car. You can point to the NHTSB report as some sort of proof of this being no big deal. I'd as easily point out that few people knew they were gathering data and that they did allow that they could reopen it if they heard from enough people - SO KEEP REPORTING IT. I think folks have just given up and are handling it on their own - mostly proactively. This happens to 997 too BTW and IMO is a pretty sad failure on Porsche's part not to step up.

Here's some good info about it:

http://sharkwerks.com/porsche/techni...urbo-cars.html

I've thought that welding was the best way to address this. However more than one person has apparently had this done only to find a leak after the motor is back in the car. A pinhole is all it takes! I think that a good prep of the surfaces, perhaps some knurling, the right "glue" (and maybe NOT JBWeld though I love it), and a pin to keep the fitting from moving might be the way to go when it's time for me. I just hope it's not going to surprise me one day and I can get to it in my own time...