CAM chain tensioner install problem

Trying to install cam chain tensioner but when I insert it into place the hook keeps disengaging on the tensioner causing the plunger to extend out and prevents the tensioner from being pushed in any further to seat it. I've reset the tensioner and hook 7 times, because the manual says reset the tensioner and hook if it releases too soon, but I don't think try 8, 9, 10, 11+ will be any different unless something changes. Cylinder 1 is TDC, all timing marks were lined up on the money, two yellow chain links on the cam sprockets are on their marks, the one yellow link at the bottom is spot on the timing mark of the crankshaft sprocket, key-way on crank is at 12 o'clock. Plastic cam chain guides went on without a problem, new timing cover oil seal, Toyota foip red gasket maker on the timing cover, tightened bolts and torqued to specs. Next step is to install cam chain tensioner and where I run into the snag. Seems like I'm getting resistance too soon when inserting the tensioner, and that would be coming from the plastic cam chain guide on the left side. Do I need to take up a little slack on the left cam chain guide by pulling it closer to the slipper guide on the right, thus allowing the cam chain tensioner more clearance to slide in before it contacts the plastic chain guide? Is there another technique used to create some slack to be able to insert the tensioner deeper, such as rotating/rocking the crankshaft 1-2 degrees clock or counter clockwise? The manual states do not rotate the engine with the tensioner out but I wondered if it's acceptable to rotate ever so slightly if one encounters this issue? I will open the timing gear cover back up if no one can offer a tip or solution but I wanted to get others advice first. Thanks