Hi I recently got a 400xplorerand it needed a head gasket. I put one in but now antifreeze is cumming up from somewhere else in the top end because it only does it bad when there is tomething to make the cylinder have compression like the head being on or a towel over the cylinder with ur hand over it. Could it just be all built up in the block? I changed the oil and it wasnt milky. Or is it more likely to be the cylinder base gasket?