All,
I'm suffering through the same issues. I put a chrome housing on top of a Spacer to run an extra temp probe. The Spacer is o-ringed and mates to the Air-Gap Mani. I had ever so slow weeping on a brand new setup with only new coolant and not even fired yet. I had it torqued to spec but gave it another 1/4 turn and it has stopped almost completely, also have leaker around the 3/8 NPT plug for the heater hose. Used ARP Thread sealer on the install, but have a small leak past a thread? I gave it another tweak too. The temp probe from a Summit Gage with the 5/8 Autometer adapter assy'd into the Spacer and it too is very fussy and had to be babied into place to get the shoulder on the probe to internally seal against the adapter. WTF is the deal with the DEXCOOL that it want to wick past every seal surface like a liquid penetrant. Looks like after the breakin and depending on the result I also may need some minor massaging to get a good seal(s).
Marion
