What the hell is this

Found this sitting on top of the filter when I unscrewed it. ANY ideas ???? Sort of stringy and rubbery
At a quess, not what you want to find when your replacing a blown Turbo on a vehicle you've only owned a few months

I don't know what it is but for gods sake, don't wake it up.

Col

Diesel bug??

Some kind of gasket sealer? Has the engine been in bits before

Edlandy said:

Some kind of gasket sealer? Has the engine been in bits before

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Beat me to it lol

Face hugger. Call Sigourney Weaver.

Edlandy said:

Some kind of gasket sealer? Has the engine been in bits before

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Head was rebuilt and oil cooler has been off

Thought is....is there any more???

The sump is put on with sealer. Have a look underneath and see if the same colour sealer is oozing out on the outside. Having said that there should be a straining mesh on the oil pipe from the sump. Might be worth checking.

LET'S just HOPE it's DEAD !!!!

kevstar said:

Diesel bug??

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or a old condom

It's got arms/legs /eye's /mouth & a F000kin egg on it's back !!!!!!

Whatever it is, at least you found it in the oil filter and not one of the oilways. Just be thankful!

And if you watch it long anough it moves !

It's F0000KIN ALIVE

LennyK said:

Head was rebuilt and oil cooler has been off

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There's your clue, oil cooler, obviously a stupid attempt to seal what should be a self sealing fitting, probably one of the fittings on the cooler has no o-ring, some slack work there. That hunk of silicone could not get up to there from the sump but can get there from the return side of the cooler, fortunately the inlet side of oil filter.
Silicone sealer is really a boon to mechanics stopping leaks on Landies, but it needs to be used wisely otherwise it can cause lots of grief.