1HD-T Glow Plug Opening Diameter? (1 Viewer)

[83bj60]

Hey Folks,

I was wondering what the glow plug opening diameter is. I am looking at acquiring a borescope for routine inspection of the combustion chamber, as I am at the planning stage for a WVO system for my 1HD-T.

I know, I know: remove one and check for yourself. I was wondering if anyone new already or had measured it.

Thanks in advance!

 

[lynchmob]

The thread is 10mm. The hole into the cylinder is smaller - probably 7mm.