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24th November 2016 at 10:34 pm
#13872

Participant
Prior to removing the head ( looks inevitable ) get a piece of thin dowel / similar and have a poke around the piston crown when it’s near the top of it’s stroke. That way you should be able to determine if there’s a hole in the crown. Petrol poured in at around tdc will work. If it disappears rapidly – there’s a hole !