I personally dont believe that the seals on the cooler can fail, 15mm seal into a 10mm squeeze..and I havent seen it myself if it does exist.
A 3.2 to 3.4 build with cam oil line restrictors.
Great pressure but then all is new.
Oil leak dripping on the heat box exhaust right side just before the connect for the cross over.
Now, I ve had thermostat seals new fail because theyre not sealing so I add a coat of 574 above the seal.
Always install an idiot light switch with new.
Opened the triangle and resealed again
Still leaking, sprayed everything down and was getting drops off the front lower stud on the cooler.
Triangle chainged so its time to pull the cooler and add new seals and pressure test. Previously change the idiot light out and it drops on to the trailing arm. As Im installing the cooler, I knock off the switch on the trailing arm and behold....
Bruce