so...a small block magnum oil filter plate - set it in place, and noticed that there is a decent gap between the plate and the mounting hole that 'looks' like it would just love to have some sort of durable round 'seal/gasket' between the two...but none of the books say so. I cranked down the double-ended bolt to 30 lbs to secure it in place, and it took quite a lot of tightening before it clicked - meaning that after making 'contact' it took a bunch more tightening to make up that gap. Now, it may be engineered to be there and requires a lot of pressure to seal everything up...or...is there supposed to be a round gasket between the two right at that main bolt? Anyone have solid gouge on this? Just seems to be 'too much' gap...but maybe it's supposed to be that way(?). I googled it to with no solid results, so...I'm asking here.