Ok so my 88 4.2 has been seeping a tad of oil from the valve cover gasket so I dropped by Advance to get a new one, plus I wanted to have a look see at the rockers,push rods etc. My jeep has a slight tick every once in a while after she warms up and from what I could tell with a screwdriver might be a lifter tick. I have read that this is common on the 4.2s and for the most part isnt a huge deal. So I get home pull the cover and start to clean it with a wire brush and brake parts cleaner. I noticed there is some sludge built up all over the head. I tried to spin all of the push rods in a circular motion, all of them except the 5th one back( #3 intake) turned easily. This is dead on where I am getting my tick from so my questions are....
Is there a way to unbolt the rocker and re-tighten it back down since it seems too tight. Keep in mind I dont have a torque wrench and basically would have to guess which I dont want to do.
Is there a safe way to clean some of the sludge off of the head without causing any issues. Im scared to do this since so much of it will just fall down into the lifters etc. The build up isnt crazy bad for a 22 yo vehicle with 137,000 miles but I hate to see it this way since Im already in there. Plus they didnt have any of the cork gaskets in stock so I spent all my extra coin for a $44 gasket!. Oh well if it fixes my seepage then I guess it will be worth it. I dont mind having to do a oil change in a few days since its almost time anyway but I cant afford to mess up my engine right now until I get my 4.0 swap stuff in line.
I know some of you jeepers always have some old tricks and insight that can really help me in this situation as you have always came through in the past. Im open to any suggestions as I have a lot to do this weekend and am somewhat crunched for time. Thanks in advance fellow jeepers!