All Things Mk5 > How to Guides / Troubleshooting

Oil Filler Leaking but have a PCV delete.

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dan_the_v8man:
The top of my engine is covered in oil and seems to be leaking out of the oil filler neck. Theres always been a bit round there but recently theres a lot more.

Everything I've searched on this points to PCV failure but I've got a BSH PCV delete. Any ideas why?


Thanks,

montythemole:
Have you still got the engine cover with the oil cap extension section?  I changed my PCV last night and noted a fair amount of oil around the cap - turns out my extension section is loose so although cap is in tightly it's coming up around the extension.    I binned the extension and put cap straight on and will monitor for oil spillage now.

dan_the_v8man:
I'm going to remove the extension at the weekend and see where that gets me

GTiBlues:
Didnt realise you can remove the neck. Mine is stiff last time I tried.

dan_the_v8man:

--- Quote from: GTiBlues on February 27, 2015, 08:29:01 pm ---Didnt realise you can remove the neck. Mine is stiff last time I tried.

--- End quote ---
Its bonded on, compress the bottom with a g-clamp, work your way round. It helps weaken the bonding and then a big pair of gland pliers/water pump pliers/5 holes (whatever you like to call them) and it twists off eventually. Takes some doing though.

Once it's off you'll see the top has the cutouts for the oil filler cap.

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