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Aliminium in filter

G

gollum2018

New member
Found these Aliminium bits in oil filter when changing oil today. These were biggest bits there were also some smaller bits. There was no ferrous metal in there as noting attached to Magnet.
Car is 2002 Boxster S with 152k
Car still drives strong with no smoking.

 
I would seriously get it checked out by a Porsche specialist, intermediate shaft bearing and a bore scope come to mind before driving .

Someone might be able to identify those bits.

Best of luck.

 
It’s an aluminium alloy engine and I’m afraid that the bits could have come from anywhere … block, crankcase, head, pistons, oil pump body, etc., etc.

At 152,000 miles who knows what is the source and the only definitive way to find out is to strip the engine, although a borescope examination would be a useful non-invasive first step.

Jeff

 
Any bits like that are bad news.

If engine is working and has not 'changed' for 1000's miles then where could such fragments come from?

Does the S have an oil cooler?

If so could that be letting go locally and the oil flow takes the debris to the filter but it gets no further.

Chunks like that have to be knocked off by collision of the 2 surfaces, you would hear that.

A good specialist is a good idea!

 
There is no unusual noises when driving even driving hard, Only noise engine makes if lifter tick on start up but that stops when warmed up.

I have seen on other discussions that new spark plugs can create this sort of debris. Not sure how true that is but plugs and coils were changed on last service in November and only 500 miles put on since. There were no bits in filter when I did that service. Decided to change oil and filter the other week so its annual service was in Spring and that's when I discovered these current bits. There is no ferrous metal in the filter at all.

 
Non-ferrous material wouldn’t have come from the plugs themselves only from the threads in the alloy heads, and surely then it would only find its way into the combustion chamber and out through the exhaust system and not into the oil system?

Jeff

 
Just been thinking about this regarding where these Aliminium bits could have come from.

Thinking back to its last service I replaced all the coils which I purchased from Design911.

I also ordered new bolts with them and they sent the wrong bolts. They sent the longer type. As I had already removed the old coils and disposed of those and the bolts I did not realise the wrong bolts were sent.

When I installed the first coil the 1st bolt went in although it was tight but the 2nd did not go so well and snapped in the head. I got it out without drilling by getting some grips on the end and unscrewing it. I'm now wondering whether the 1st one that went all the way in could have pieced through the cam cover and the shards of Aliminium fell into the cam area and making there way into the filter.

I know its a long shot but would this be feasible.

There was nothing in filter when I did this service and since only covered 500 miles since this current oil change.

 
There’s only one way to find out … remove that bolt and have a poke around to see if the hole goes right the way through into the cam chamber!

Jeff

 
That scenario works for me.

Bolts bottom out in the blind tapped holes for the location screws and can push the bottom of the hole out making for a ragged through hole.

the length of the bolts will be +/- a mm or so, so some will be 'just' too long, others you may get away with it. The drillings by Porsche will be to an accurate and consistent depth (CNC machined)

If all true, you will need to re-assemble the screws with a compound to seal the threads as hot oil is really good at migrating out of engines..

The correct Loctite sealer is needed (not thread lock!). I think the number is 574.

Silicon should be avoided.

 
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