CHT sensor block off Options

[bbrock]

I'm running carbs on my 73 2.0L so don't need the CHT sensor for D-Jet but thought I would block off the hole in the head to keep it from filling with crap. I was planning to just screw my old sensor in but it is so far MIA. My second thought is to source an aluminum bolt from McMaster Carr but not sure of size. Looks like probably M8x1.25 from what I've been able to find but would like to confirm and not sure of depth. Unfortunately I installed the heads and tins before thinking about this so it isn't very accessible.

Would an M8x16mm aluminum bolt work there and does anyone see any problem with doing that?

I know I'm probably overthinking this but that's kind of my thing. (IMG:style_emoticons/default/biggrin.gif)

[Superhawk996]

@bbrock since I know you won't be happy leaving the hole unplugged (IMG:style_emoticons/default/smile.gif)

M10 x 1.0 is the thread form

Sensor is about 9mm long.

Hole in the head is 15mm deep but you don't want to go to bottom, I doubt the last couple threads are fully formed.

Sensor is steel. No need for Aluminum bolt. Just use a little anti-seize on it and you won't have to worry about corrosion. Aluminum on aluminum threads are prone to galling too so you'd want to use a little anti-seize there too anyway.

Agree with @Bdstone914 -- plug the tin hole. That is actually the more important part.