Does anyone know the correct clearance between piston and bore on a Villiers 2t twin engine?
Also what is the correct ring gap when the piston is in the barrel.
Also what is the correct ring gap when the piston is in the barrel.
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2T piston clearance
Hi Graham, I have been waiting to hear the answer to your question but no replies! This will bump your question up again. As for ring clearance Hepolite say 3 thou per inch of bore for cast rings and 4 thou per inch of bore for chromium rings. I would get Simon at Nametab to do your boring as this is crucial to having a successful 2T...John. -
Thanks John, that ties up pretty well with other information I've gleaned on the internet. It also seems that 5 thou piston to bore clearance is what is needed for road use, and 6 thou for racing, but I have no definitive confirmation of this.
I did email Nametab Engineering for help as many people on this forum speak highly of them, but I got no reply. I haven't chased them as midway through a lovely run last Sunday the beast started misfiring again on the left hand cylinder, looks like the same condenser I replaced 50 miles ago from Villiers Services has gone again. Dave Pink is going to send me a good one with any luck.Comment
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Replacement condenser received from Dave Pink. Misfire gone, running well. Thanks Dave.Comment
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