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Villiers Decompressor


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Hi All

Putting together a 8E trialer. Have obtained a two hole head however one of the holes is oversized.  I always thought the decompressor was same size as standard plug. Anyone know if this is any use for my build, or simply use the standard head.

Thanks in advance

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I've got a feeling the Villiers decompressor thread is bigger than spark plug size, if it's the same as a 32A I've got one in the garage somewhere, I'll seek it out tomorrow. I'm just up the road from you in Fontmell..... 

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So the 32A decompressor I have has a thread of 0.700 inch (od) or 17.80mm in new money, and is 18 tpi as best as I can make out. Villiers Services do sell a blanking plug to take the valves' place if you don't want to use one, but they're handy on muddy drops!

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