Ok, I have a 1998 TJ 2.5L, aw-5, 139,000 miles. Oil pressure has been being around 20 idle and 40 highway speeds. I notice the other day the oil pressure was getting lower. Figured it was time for an oil change. Temp has been holding steady at 208-210 until the same day the pressure got lower then the temp will not rise above 160. I went today and got a new thermostat and some oil and filter. I pulled the radiator cap off and noticed it was slightly low. I checked the oil and it was 1/4 quart over full. I pulled the oil ca and sure enough it had a small amount of water on it, looked like mud. now to the question:
I am assuming it has a blown head gasket, of course, while replacing the gasket I will have the head surfaced and magnafluxed and have new valve seals installed since they come with the gasket kit. It had some lifter rattle also so I am thinking of replacing the lifters while I'm in there. I have replaced lifters on small block chevys before without changing the cam, will it be ok to do it on this engine? I have a mech stethoscope and can not hear the cam rattling. I am pushing the budget just getting it fixed. do you think I can slide by without a cam change, I dont have a bearing puller/installer. Also, anyone that has done this have any tips, tricks, or thoughts on the process? I have always worked on chevy's, this is my 1st 4 banger.