So I am awaiting the arrival for a rebuild kit for my McCulloch Mac 10-10 Automatic and I have seen a few videos on YouTube and when people pull off the cylinder I notice nothing else sealing it to the block, and when I took mine apart I also notice how there is nothing in between the two halves of the block like a gasket or anything sealing it. So my question is when I put it back together should I put any kind of sealant or do anything to seal it? Or should I just put it back together with nothing to seal it.