This is a method I’ve been using for 10 years. Obviously pull the oil pan after this and check for metal stew, as this will not show you a damaged main bearing or camshaft bearing. First thing I do is verify cam timing on interference engines. Then, I do this, then I pull the oil pan. If it all looks good, then I’m all set and will remove the engine and take it home with me! Stay tuned for a engine removal and installation video! This will work with just about any piston engine (sorry rotary guys). Be sure to check out my other tips and tricks with subaru engines.
I am a 14 year subaru mechanic and work on impreza, forester, legacy, outback, WRX, STi, pretty much any subaru, any time!