Be sure to verify ANY video procedure with the service manual/bible. Download it from site 1 in my signature.
Proper gap = 0.043 in/1.1 mm (see service manual)
You're probably okay.
The solution is simple.
First remove the 2 bolts and 1 nut securing the filter bracket to the firewall (see diagram I posted). The entire assembly can now be removed, giving you access to the hidden bolt.