96 f150 engine tapping
hi i just recently got a 1996 f150 with a inline 6. and i had to rebuild the head in it, now the engine tapps when its in park and it is kinda loud until the engine is under load then it quites down a little. i was wonderning if i had to set clearance on the valves or somthing? is it gunna hurt the engine. only my second engine build so any help would be appreciated, thanks.