Hey guys first post here. Ive just started renting a house and the people before us let the oil run out and the boiler needed bled. So, thinking it was easy i grabbed my allen key and started screwing and have since found out that i wasn't bleeding it but adjusting a valve which basically controls the oil flow into the boiler. now its v smokey. Should i call in the pros or is there an easy way to screw this guage back to where it should be? ps i then found the place for bleeding it and got that done, least i know for again 
