Temperature sensor union in cylinder head.

[mark030358]

Hi,
Had a look throught past posts, but can't find what I'm looking for.

Does anyone know the thread size, both ends. of the union that the temperature bulb sits in?

Thanks
Mark

[pharriso]

Mark I think this thread covers it... https://lotuselan.net/forums/viewtopic.php?f=39&t=48294

Seems to be a recurring topic!

[mark030358]

Thanks Phil, that gives me the head thread as 3/8 BSP. However, what is the thread on the temperature gauge?

thanks
Mark