im by no means super but ya pick it up pretty quick . to strip somthing ya really would have to be leaning on it with the wrong tool.
dont smash a 8mm bolt with a half inch drive cz itll turn to shizzle
ive had this happen. a friend put my turbo feed back on ... stripped it and didnt tell me. it pissed LOADS out very fast.
lucky for me it stripped the bolt so new one and I was good to go. was not happy with said friend tho
legacys run coil on plug dude. and I dont think that would be possable from a battery change and if id did reset chances are it would run better not worse.
so the oil cam out tof the downpipe its self? once you took it off it pored out.
just thinking could be the return line not on correctly or the flange isnt sealed/gasket rooted. would explain the smoke
later bh ones are the go. they bolt straight in .
the plugs need to be changed and the 3rd wire just needs to be earthed to the coil itself.
there should be some details somwhere on here about the conversion
the early coils like what you have arnt the best.
basically if you unplug a coil and it makes no difference it sould be either the coil or maby the plug. could be further back but more likely the coil
nope v1 to v4 share the same inline pattern. bg5s are basically the same as v3/v4 but have smaller runners compared to the sti (I know bg5a ones are smaller)
there much better than factory heads.
bg5a ones have hydraulic lifters which can get noisy . also the cam profile in the v4 heads may match the tune a bit better depending on what ecu your running.
mid 20s not tune or related to the rod bolts . the pos just shore in half lol
just a cheep copy of eagle
granted it wasnt a factory engine or setup but still concerning