Timing belt moving of the gears

[Boostdclips99]

I finished up my timing belt change and have noticed the timing belt moving to the outside of the cam gears. I changed the tensioner and tensioner pulley during the install but not the idler pulley.

Well I took it all back apart and noticed there is some slack on the tensioner arm in and out. I know it should pivot but how much slack should you be able to move from the block? I tried to remove the arm but the bolt is very snug (thinking it may break) so I would rather not have that headache. What should I try next?

 

[DSM1G90]

is some slack on the tensioner arm in and out

Replace this - no play is allowed. This is what's causing the belt to travel to the outside of the cam sprockets..Things aren't square.

but not the idler pulley.

This should have been replaces as well. When doing a belt, all components are recommended to be replaced-including the WP ...

good luck - DSM