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Re: Oil around spark plug - Help!

Posted: 06 Sep 2017, 17:04
by itchyfeet
evilgoat wrote:It looks like this:
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and the plug looks like this:

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Please can anyone recommend a good specialist in the midlands who knows the score with these engines?

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Re: Oil around spark plug - Help!

Posted: 07 Sep 2017, 14:56
by evilgoat
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they are for me.

is this any better?

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Re: Oil around spark plug - Help!

Posted: 07 Sep 2017, 18:21
by itchyfeet
yes better
not conclusive to me could just be oil leaking from rocker being blown up by by wind, obviously the other symptoms could be other problems.

Did I mention a compression check first?
35 quid for a gauge, don't bother with a garage do it yourself

Re: Oil around spark plug - Help!

Posted: 08 Sep 2017, 21:21
by Mr Bean
[quote="itchyfeet"]you might expect poor running if your plug was loose but oil coming out is ususlly a sign of oil in the combustion chamber, it should not be there in any significant quantity.

OK the engine might be past it's best and if the plug wasn't firing for some reason then the full piston seal at the top rings may not be be achieved and any oil present maybe pushed up the bore and would not be burnt and could find its way up the loose plug threads. The oil scraper ring/s probably work both ways. Too much coincidence at play here maybe but worth a thought... I am often surprised how little oil an engine can burn with considerable barrel wear.
I remember in the good old days - spit - pouring Redex down the carb at full throttle to clear stuck/gummed in piston rings.

CS

Re: Oil around spark plug - Help!

Posted: 09 Sep 2017, 16:53
by what2do
My old engine was also doing the same thing. Once it's been cleaned and passed over to Itchy, disassembly may reveal what's causing it.