[Jeff Chambers]

Somethings not right if the intake bolts keep coming loose. I'd have to wonder if the head bolts on that side aren't loose as well and its letting the two move in relation to each other, loosening th intake bolts in time. There's no reason for them to work loose in that short time. You need to start by pulling the lower to see exactly what's up with those gaskets/bolts/etc. If you're seeing compression being low, then I'd have to believe that you've got a head gasket problem of some sort. The difference between cold and warm compression tests shouldn't be double as you explain. Check it out thoroughly before you end up hydraulicing a cylinder.