cooling not so cool

in the video, looked like the shroud wasn`t tite against the rad. , the fans blade should have only about 1/2" clearance, unless ur engine moves around a lot. I like 1/4" to 3/8', but my engine doesn't move around at all-----------
Will be testing a thermostat like yr suggested a while back next.


its not tight, thats one of the few fixs i got to do. i got a torque strap so it dont go to far. 1/4" is a bit to close for my liking. kind of limited to shroud diameter and available fan diameters. as i said i think the next size from 18.5" is 20" and thats going to be to tight. unless there is another fan blade size im missing?