Caymen gen 2 - white smoke on start up - HELP!!!
Discussion
premio said:
ok, well got the photos back from the borescopy (sp?) and ALL 6 CYLINDER WALLS were scored! On a 6.4k mile car!! God knows how.
I had the pics checked by Porsche and they confirmed engine is beyond repair, and took it to the dealers for a refund - they were excellent and didnt mess me about at all. I was really impressed and happy at how they dealt with it. The car is just 3 weeks out of porsche warranty being an 09 plate, so fingers crossed they will give him a new engine.
That's a great result (the refund), must be a load off your mind.I had the pics checked by Porsche and they confirmed engine is beyond repair, and took it to the dealers for a refund - they were excellent and didnt mess me about at all. I was really impressed and happy at how they dealt with it. The car is just 3 weeks out of porsche warranty being an 09 plate, so fingers crossed they will give him a new engine.
I doubt Porsche GB will be particularly keen to shoulder the cost of repairs given it wasn't serviced by them, but that's the dealers problem now - not yours. They might get lucky and find out that the scoring was caused by a factory installation defect of some kind, it does sound peculiar to me that overfilling oil would cause that. There is also quite a few anecdotal reports on Google if you search for "porsche scored cylinders", so you're not alone in that respect! Bit worrying really for the rest of us.
here are the cylinder wall pics, all 6 of them!
I feel really sorry for the dealer now really as he has a fight with Porsche on his hands, the dealer with Cridfords in surrey and i must say that once i had evidence of an actual problem he was as good as gold and didnt mess me about at all.
I feel really sorry for the dealer now really as he has a fight with Porsche on his hands, the dealer with Cridfords in surrey and i must say that once i had evidence of an actual problem he was as good as gold and didnt mess me about at all.
HoHoHo said:
Can anyone answer how the bores of all 6 cylinders end up in that state after 6500 miles?
Is it oil, driving as if you stole it from cold or what?
absolutely no idea, both porsche and the dealer were stunned when i showed them the pics. I had only managed to drive 130 miles in the ownership of just 1 week as it spent so much time being looked at by garages. It must surely be a manufacturing defect, with such a modern and new engine for it to be smashed to bits so quickly must be something more than low oil??Is it oil, driving as if you stole it from cold or what?
premio said:
...GT one (great guys) and we rang them for some initial advice about the smoke, and it was tehm who suggested they could do the borescope...
Did you use GT One for the boroscope examination and if so how much was it?Glad you managed to resolve this nightmare so quickly and, relatively, painlessly!
mollytherocker said:
So whats causing these bores to score like this?
MTR
Just thinking out loud.......MTR
Could it be due to lack of use? Only 3000 miles per year. The bore walls could have gone completely dry between runs with the consequesnces shown above.
BUT - that 'scoring' doesn't look like the kind of serious damage you see if the piston has picked-up on the bore wall (as can happen, rarely, in M96/7 engines). It looks more like very minor abrading that can be seen sometimes as part of the running-in process - the piston rings actually 'polish' the bore walls as running-in takes place, increasing the seal between them and the cylinder.
I do have to wonder whether this engine would recover nicely if it was warmed through thoroughly and then taken for a proper, hard-driven, 200-300 mile hoon at max attack. I'm thinking it might just never have been driven long or hard enough for the rings to bed-in. Or it could, of course, be bore damage due to lack of use as I first thought!
If I were a betting man, I'd go for the 'not-properly-run-in' verdict.
Ian_UK1 said:
The opinion of a fitter in a garage.
Perhaps, but I'd expect it more likely they would say they'd need to strip down & inspect the engine themselves (at someone elses cost obviously) if they were unsure.Or perhaps they're seeing so many of these failures they know exactly what to look for
(I couldn't resist^^)
cragswinter said:
Perhaps, but I'd expect it more likely they would say they'd need to strip down & inspect the engine themselves (at someone elses cost obviously) if they were unsure.
I think this would have been a more sensible response from the OPC. The borescope pics just aren't clear enough to make a definitive statement that the engine's scrap metal. As you say, a strip-down and inspection would be in order. cragswinter said:
Or perhaps they're seeing so many of these failures they know exactly what to look for
(I couldn't resist^^)
Interesting. I was of the (misguided?) belief that there were no major issues with the DFI / DFI-derived lumps so far...?(I couldn't resist^^)
stripy7 said:
Clocked?
Or used almost exclusively for short, urban journeys with the odd blat from cold? The rich mixture will wash into the sump, reducing the oil's ability to protect the engine. Add 24 month service intervals and you have the potential for low mileage engine failures.
SS7
White water , blue oil, black fuel, a good run would sort them bores out all look about the same the flash kick back is because light reflects at the angle of acceptance .I would have checked the compressions internal problems would be when cold this story looks like b
ks to me. White smoke when warm could be as simple as water in the exhaust??????? I would not let Porsche dealer have it take it to Hartech.
ks to me. White smoke when warm could be as simple as water in the exhaust??????? I would not let Porsche dealer have it take it to Hartech. Henry-F said:
I'm not sure thrashing the nuts out of the engine on some dyno power runs is the best thing to do if the OP is concerned about scored bores. It wouldn't help the OP's cause if there was to be recorded rev range activity at the same time as he is trying to resolve things and just because an engine produces it's required power doesn't necessarily mean all is well. I think that's a rather crude method for determining the engine's well being.
Henry
It wont be recorded if its not overevved.Henry
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