When removing the crankshaft pulley for working on the Crankshaft Oil Seal (Front Main Seal) or Timing Belt or Water Pump. Can an impact wrench with 300+ lbs of torque remove that nut? Its torqued at something like 239lbs. It'd be nice to just hit it with that impact wrench and be done with it.

 

i don't think a 300 ft/lb torque could remove it, it can't even remove the lug nuts on my car. at least a 700+ ft/lb should work. this is the easiest way to do it. place the correct size socket on the crank pulley w/ a torque wrench and lean it against the ground, unplug the external coil plug and crank the engine..walaa! here's quick skectch i made...

 

should work, maybe hit it with some wd40. if all else fails, crank the line pressure going to your impact wrench, i have an ingersol-rand titanium 3/4 and 1/2 inch impact and with 120 psi runnin through the lines in the shop i can take off any bolt/nut the 1/2 incher is rated at 1000ft/lbs tq at 90 psi... so 120.... oh man it was like 300 bucks

 

Yeah a couple hits with those crazy high torque/psi wrenches will do the job. Just remember to spray it down with some penetrating lubricant to kind of help break it loose.

 

my experince on the 2jz since it was a nighmare.. two of my 450ftlb at 150psi wouldnt do it i bumped it to 200psi and nothing.. i borrowed a 600ftlb matco gun and bumped it a lil more then 200psi and it ran right off