In the middle of an aviator engine swap and just realized I'll need to transfer the heater pipe to the aviator head. Where do I get an oring for that and also what is the best way to knock out the freeze plug?
Great. Yes, I want a new one since it's in the worst possible place to save a few cents.To knock out the freeze use a hammer and a punch (or screwdriver) to knock one side in. Don't go crazy. Once it's turned in the hole grab it with pliars and pull it out.
Take the o-ring to a parts store and match it up. I'm assuming you just want a new one for piece of mind.