Honestly, I never lock the crank. In fact, I don't think the VIDA instructions even tell you to lock the crank. Turn the crank until the line lines up and you can get the cam tool on. Then just don't touch the crank.
This, tho had one green-horn mech second guess/not trust the crank mark (which isn't always TDC on #1 except on the 4-hole S40 whiteblock?) & use a chopstick to put #1 @ TDC, do a T-belt & bend uhhh...IDK...something close to all 24 valves?
I couldn't believe the engine started looking back on it/noises it made after the fact!
'murika idiocracy / elroy FTW?
Tho that one was particularly funny to me because it takes a certain kinda foreknowledge/imagination to even think to do that, but also not refer back to the factory manual or check with the spark plugs out that it spun over no resistance/bending of valves or something by hand gently once the t-belt was on IDK?
Poor kid just outta auto-tech school finally fessed up to it.
Nice kid, didn't get fired, but did have to go source a head on his time (pistons survived that little mis-adventure) & recondition it.
One of my favorite bumper sticker slogans applies I think?
not another learning experience!"
I don't use the crank lock tool, either, but technically I suppose if you use both cam & crank lock tools, you can't get it 'wrong,' easily...tho where there's a will & smarter (deviant/imaginative?) idiots, there's gotta be a way!