Finally removed that vacuum emissions thermostatic switch thing at front of intake manifold located within water jacket just behind thermostat…
Intend to of course eliminate all emissions crap and replace that with a nice brass grub screw or similar.
Nobody locally has anything, McMaster Carr online no doubt will, however I don’t know what i’m looking for.
Anyone know the thread size by chance, or know how I can determine?
Appears to be metric 21, however it may be a British Pipe Thread like other stuff.
Any thoughts or help greatly appreciated.
Note: of course the plastic cover with vacuum connections was broken off to facilitate removal.
For those unable to remember, it is facing hole, far right.
Using phone and can’t remember parts catalog site name to provide further photo reference…