Pre serp Chimaera earth lead location

[braveheart 3]

Evening everyone
Can someone confirm if this earth lead picks up behind the swirl pot on a pre serp Chimaera.
Unfortunately I have inherited from late father and this is what I can see ?
There is a copper washer on the top swirl pot bolt which looks correct but need to make sure.
All the best
Chris

[pmc_3]

Mine is the other side lower down near the waterpump