you are right in that they need O-rings. Are these black tubes also pickups with no screens? wondering why 2 drains with dedicated tubes to the bottom of the pan be needed?
The oil system picture doesn't seem to mention them
Quote:
Originally Posted by NoHaveMSG
I can tell you a bit later. I am pretty sure those correspond to some galleys in the upper pan assembly. I think those spots have orings, there should not be sealant on them. The only drain back I had seen for the heads is in the timing cover, then down through an opening at the bottom center into the upper pan assembly.
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