Annoyance strikes again!

Cleaning up spark plugs, notice plug number 2 covered in oil, all the others are dry and a bit sooty... black oil indicitive of busted stem seal or...? What else could be causing it?

Cheers,
Matt

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Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

Bad rings, worn valve guide, crook plug lead, busted or hardened valve stem seal (if fitted- most 202 heads didn't have em).

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Comp test showed 170 on all 4 pots, head is K-lined, plugs+leads are good, im gonna say valve stem seal... gah! head off.....

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

Plug leads and cap, check that first. Check plug gap. Swap dirty plug to another cylinder and run a clean plug from that cylinder on this one and see if it repeats. Then pull head off if still oily

Oil control ring and compression rings two different things, maybe one dodgy oil ring? I remember having to align the ring open ends to oposing sides of the piston, was this done? Just a thought

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Lillee - 1969 Morris Mini K