[Fot] TR3/4 filter head relief valve

[Greg & Alison Blake]

I am trying to solve the little seeps I have around the filter head.  Has
anyone used an o-ring under a washer to seal the pressure relief valve
adjusting screw lock nut?  I thought I would give this a try but the o-rings
available at the local autoparts store seems to be too thick and stand proud
of the chamfer that used to be sealed by a lead wire.

 

What have you guys used?

 

Thanks,

 

Greg