All Things Mk5 > How to Guides / Troubleshooting

PCV done?

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TaylorGTi:

--- Quote from: boustie on February 13, 2015, 08:23:37 pm ---I find best bet is take oil filler cap off a tiny bit, if it feels like the engine can suck it back on then it's a pretty good bet it's gone.

--- End quote ---

I done this and it sucked the cap back on... Then I checked the dipstick and the engine spluttered... I'm now confused haha!

john87:
I don't know if that's true.. I run a volvo and the test to see if the PCV is gone involves running the engine and putting a rubber glove over the oil cap; the glove should be sucked down slightly. If it inflates at all, the PCV system is clogged/nackered!

If you think about it, you want negative pressure (vacuum) inside the crankcase so that the fumes are sucked OUT of the engine. Positive pressure is a bad thing, especially for oil seals, etc!

dom069:

--- Quote from: dan_the_v8man on February 23, 2015, 11:07:29 pm ---Have you considered PCV delete?

--- End quote ---

I removed my PCV delete last week after it became blocked and chucked plooms of smoke out of the exhaust and forced oil out of the filler cap :sad1:

dan_the_v8man:

--- Quote from: dom069 on February 26, 2015, 05:35:08 pm ---
--- Quote from: dan_the_v8man on February 23, 2015, 11:07:29 pm ---Have you considered PCV delete?

--- End quote ---

I removed my PCV delete last week after it became blocked and chucked plooms of smoke out of the exhaust and forced oil out of the filler cap :sad1:

--- End quote ---
It's funny you should say that, literally 5 minutes ago I've just had to top my oil up and top of the engine was covered in oil.

Which bit blocked up?

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