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The only place for a coil spring is up Zebedee's arse
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As part of my ongoing service I filled up to the line on the dipstick, went out for a drive and I could smell hot oil. Open the bonnet and saw the mess out of the cap.

I changed the oil yesterday and wondered why it was blowing oil out of the filler cap. Then I realised that the oil filter housing didn't have an o-ring on it like it should have and thought that was a bit odd. I put on the new o-ring.
I also couldn't stop the oil cooler leaks but I finally managed it.

So I'm head scratching and having a think. It wasn't overfull of oil, the new o-ring was on the filter, oil leaks stopped. Therefore the crank case breather must be blocked. My last engine had a pancake type filter between the rocker cover and the intercooler, this one only has a pipe. See photo.

Then it hit me. I remembered there is a mesh inside the rocker cover that leads to the intercooler! So off it came and the mesh was absolutely solid with old oil. Lots and lots of gunk later I can see daylight when I hold it up. What I did notice was a small hole in the cover a little bit back from the big fat breather pipe - it looks like there should be a pipe there - but there isn't. I can see hot gasses from the engine puffing out of it now but having had carbon monoxide poisoning previously I don't want it again as this will blow into the cabin.

Is there supposed to be a pipe and if so where does it go to?
cheers,
Hoppy

Breather pipe < Photo link to my google photo, click here

https://photos.app.goo.gl/DTsFoXT3Whke4TLi6

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I've just found a page in rave and it says atmospheric vent, so if it is then I'm guessing nothing is missing

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wouldn't it have some sort of filter?

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That's what I thought but it didn't come with one.

Anyway the clean up has made a difference, I just went for a 15 mile drive and ragged it in sport mode and up and down the dual carriageway for 7 miles to see if it would leak.

I got a small weep this time but I still want to cure this over pressurising.

Photo of the weep here => (https://photos.app.goo.gl/AEWbcPMSbeDQzZcU6)

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Time for a new oil cap, I had the same with my dse, changed it and no leaks

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I've ordered a new one and slightly bent the tangs on existing the cap to tighten it up. No more leaks from the cap