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Speed,Combat,Scale,Racing => Combat => Topic started by: Roy Johnson on March 18, 2024, 07:10:36 AM

Title: Nelson Plug Size
Post by: Roy Johnson on March 18, 2024, 07:10:36 AM

Can anybody tell me if the Nelson glow plugs are the standard glow plug thread size? In pictures I've seen they appear to be larger diameter.

Title: Re: Nelson Plug Size
Post by: BillLee on March 18, 2024, 07:32:27 AM

Yes, larger diameter than a standard glow plug.

Title: Re: Nelson Plug Size
Post by: Paul Smith on March 18, 2024, 07:35:03 AM

Yes.  They are of a bigger diameter.

Also, they do not bottom out against a plug washer, but rather use a cone at the bottom of the plug that seals against a cone-shape in the head. 

This design has become the new standard of most high performance engines.  The current crop of plugs requires a 10 mm hex wrench.