lately ever since the texas jamboree my truck has had very low compression in the last three cylinders and i'm pretty sure it's getting worse. i used my leak down tester and decided that it was leaking past my intake valves. so i'm thnking that when i went mudding and dirty water was everywhere in my engine that i sucked in some crap into my intake and messed up the vavle seats. i can't really think of anything else that it would be because i haven't floated my valves and i don't know what else causes intake valves to not seal. and yes i make sure to do every cylinder at TDC on the compression stroke and even moved the cylinders around to see if there was any difference. so any suggestions or confermations would be very helpfull. i'll be taking the head off here in a little bit and my friend has a valve puller and seating grease so we'll do that. thanks
