Perhaps some of the knowledgeable members here might know?
Does this pressure switch that goes into the cylinder head just below the distributor not have any washers at all?
It does not show up on any diagrams.
Thanks for any help.
View attachment 1745111

No, tapered metric threads, but I believe it is fine threads not coarse threads like you picture.

 

Hi Steve,
Thanks for confirming that. It is indeed fine threads but the magnified photo might look otherwise.
Cheers