I've recently joined the blown head gasket club with my 2001 Outback (EJ25 phase2 SOHC; about 115,000 miles). I've pulled the engine and I'm doing all the usual maintenence stuff as well (oil pump seals, new water pump, rear main seal, timing belt & tensioner, new clutch, etc.). I dissassembled the heads (removed rocker arms and camshafts) and took them to a machine shop to check for warpage, press in new valve seals, etc. My Subaru Tech manual recommends using ThreeBond 1280B (or equivalent) when reinstalling the camshafts/camshaft cover. I've searched the postings, but can't find any reference to this particular sealant. I know that Threebond 1215 can be replaced by Permatex 599, and I'll be using this to reseal the oil pump. What do you all recommend for the camshaft cover if I can't find Threebond 1280B ?
By the way, these forums have been an invaluable source of information for this project. Thanks for all the assistance. I'll post a thead with some notes and observations about this project when I'm done, with links to photos. My next project is removal and complete overhaul of the EA82 in my 'old reliable' 93 Loyale, which now has 308,000 miles...