I can't get new timing belt to go on
 

I can't get new timing belt to go on ... I have the tensioner all the way out of the way I have the sprockets all lined up correctly ... I put belt over crank sprocket then I have tried either the R or L cam sprocket and can't get it on the 3rd sprocket it's almost there ... I've tried moving each cam just a little to give me some slack but I need just a little bit more ... I was told to loosen the cam bolts to provide a little slack but I can't loosen those at all there on way too tight and there is nothing to brace or hold the cam sprockets with enough force to break them, can't get an impact wrench in there either ... the manual says to put a screw driver in the 12 o'clock hole to hold cam sprocket that's the stupidest idea, doesn't work nothing to brace against, cam moves ... besides the nissan mechanics at courtesy nissan said it should go on easy with tensioner out of the way and you should never have to loosen cam sprocket bolts to get it on. .... any suggestions

Where did you get the belt??? Are you SURE you've got the right belt? Compare it to the old one to see if it's the same length. I've purchased timing belts and gotten the incorrect belt.

from courtesy nissan the package part # ends in E85 but the part # in white on belt ends in E10 but apparently thats the same part # and it is correct for 300zx 86 turbo or n/a ... also the orig. factory belt was installed backwards with FR arrow pointing toward back of car and the lines on belt were nowhere near the punch marks on the gears does this mean anything?

I did it! ... now whats the best way to adjust tension on belt and get the sprockets correct, I have the lines on the belt right on the punch mark dots of the sprockets but i'm meeting resistence when I rotate the belt clockwise ... sparkplugs are out, and does that mean that the valves are bumping the cylinders?

I'll start a new thread.