I'm going to be replacing the timing chain guides on a 2007 Nissan Xterra soon and am running into a bit of a hiccup. There's a tool one can buy that bolts onto the flywheel to lock the engine in place once you've rotated it by hand to TDC. However, that tool is fairly expensive considering what it is and how many times I plan on using it. You need the engine locked to make removing and then properly torquing cam and crank bolts manageable.
My tentative plan was to turn the engine to TDC, override the shift interlock with the button next to the shifter, and shift it into drive, reverse, low gear, etc. However, I'm not sure if doing so would result in the engine engaging the transmission, given that it won't be running when I shift it. My hope is that it would engage with the transmission, locking the crankshaft in place.
So, my question is: will shifting an automatic transmission into gear with the engine off result in the engine being engaged with the transmission, or will it still effectively be disconnected?
If you see any other holes in my plan in general, please let me know.
Thanks in advance!