after battling with the sand blaster and getting no where, i decided to go the chemical route and use some lacquer thinner... besides burning my self every 5 min its taking the paint off. the more you apply the faster it comes off... just did the first round and took about half the paint off... need to let it dry after washing it off the bay. ill prob sand off all the little spots and then get back to applying the thinner again... don't think ill have it prepped by the end of today...
Wasted your time..I do this everyday for a living...Heres how I "cut in" engine bays..since yours hasnt been in a wreck or we will assume your not being and were just prepping for paint....Your gonna wanna seal it and base it and clear it for color change. 1st thing I do on cut ins is get the air blower/gun out and blow out the engine bay to get loose dirt out. Then I degrease it really good. Now Ill use a 3m red scuff and really red scuff the engine bay good. I d/a with 280 grit the top of the core support and sometimes Ill wet sand it with 500grit expecially if its silver or gold or any light metallic. You can even wet sand the engine bay with 500grit. Now its time to blow it out with the air gun again degrease it one more time...mask of engine and all wires and fenders from over spray. Sealer,base, and clear if you choose to clear it. Note I may have missed steps since its late but Im pretty sure I got everything.