lunio666

Hello,

I have a problem after purchasing the car I decided to check the oil sump if not have metal shavings because I read a lot about this engine and a lot of them have a problem with the intermediate shaft bearing problems resulting in serious engine failure ... But in my it is not that problem because I take the gearbox out and the inspect IMS bering and looks fine... Question what can be the reason for these pieces of metal?

PS shavings are aluminum ... magnet does not attract them ...

lunio666

Second foto.

Macster

The reasons for the non-ferrous metal on top of the oil sump cover?

Terrible engine factory manufacturing/assembly hygiene would be my guess.

The alum. pieces look very much like chips produced by machining alum. The med. caramel and dark caramel colored pieces look to be from the various cam chain tensioner/guide rail cover plates which are made of a tough composite plastic. These can shed a piece of two of plastic as the engine is first fired up. Heck the assembler can even knock some bits loose as he fits the things.

All of what you found can also explain why once in a while some one who religiously inspects his oil filter housing oil and filter element can find a surprising amount of fine/small alum. or plastic bits.

One of the pieces sloshing about on top of the oil sump cover breaks up and gets small enough to be pulled through the oil intake screen and gets pulverized by the oil pump gears.

No scary bits in the oil filter housing oil, in the filter? No scary noises? No untoward engine behavior? No problem.

Make sure you properly seal and install the sump cover. If it comes loose and leaks... problem.

Sincerely,

Macster.

trendy996

Can't the crank mill pieces of the bearings if it 'walks'?

Flat6 Innovations

These are left overs from manufacturing. We see them routinely.
BUT you have timing chain rail wear going on too..

Imo000

Note like this, the pices are too big and too clean cut. I agree, these look like machining shavings.

ChristopherG

I agree with the others opinions about leftovers from manufacturing. It takes a very sharp cutter to shave aluminum as smoothly as the shiny side of those shavings.

I am surprised that porsche didn't do a better job of getting all of that out of the engine before assembly.

Macster

The crank can abrade material but will not produce chips like those that are curled due to a clean cut by a sharp cuttter.

Also there will be a lot of finer pieces finer material and the filter oil and filter element will be full of the stuff.

Sincerely,

Macster.

Macster

Me too. I'm surprised but accidents happen. Or perhaps clean enough is the enemy of cleaner.

The engines are a mass produced item. Real real clean costs time and time is money. If the factory can get a way this kind of uncleanliness it will.

Also, there is the possibility someone tossed some of that in engine as it was being assembled. Either the tech or a co-worker with a grudge.

Sincerely,

Macster.

Dharn55

If it is the first time the pans was off I am not surprised to see these. The first time my pan was off I had the same sort of debris, this was at 50k miles.

lunio666

Thanks for your replay. Engine works fine only problem I have when is on idle and RPM are between 700-800 and engine is hot I'm geting sound like stuck lifter but not always, I noticed when I get tapping then oil pressure is on 1 bar....

No metal bits in oil filter and housing.

Imo000

The low oil pressure and knocking sounds are something you need to really look into.

Edgy01

Are you saying that this is factory assembly debris? (This is not a remanufactured engine??)

txhokie4life

Looks like your oil and pick up filter is doing the right thing.....

mike

Flat6 Innovations

Yes. That debris has been there for years. Even new engines have manufacturing debris from drilling the oil and coolant passages.