rustybottoms88 Posted October 16, 2015 Share Posted October 16, 2015 I have a bad oil leak. I jumped the gun and I replaced my rms. In the process of doing that I power washed the engine. Upon driving the jeep after I now realize it is leaking oil from the head gasket on passenger side. Any advice? I guess I will pull the head and check the head for cracks/ straightness and replace the head gasket. Do I need to replace head studs as well? Engine is a 4.0 that just turned over 170k. Link to comment Share on other sites More sharing options...
88whitemanche Posted October 16, 2015 Share Posted October 16, 2015 If it's leaking oil from the head that means that your piston rings are gone... Link to comment Share on other sites More sharing options...
rustybottoms88 Posted October 16, 2015 Author Share Posted October 16, 2015 Worn piston rings will cause a head gasket to leak oil? It not coming out of the exhaust manifold its coming our of the side of the engine (passenger side) where the head and engine block meet. Link to comment Share on other sites More sharing options...
88whitemanche Posted October 16, 2015 Share Posted October 16, 2015 Ok it may not even be the rings... Did a quick search and it may be just your head gasket... Check out this thread for a bit of info http://www.naxja.org/forum/showthread.php?t=998666 Link to comment Share on other sites More sharing options...
outlaw star Posted October 16, 2015 Share Posted October 16, 2015 88, look at the lifter side of my block. The gasket area is small and can leak there. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted October 16, 2015 Author Share Posted October 16, 2015 That is the info I was wanting to see! I have not had one of these motors apart before so was not sure where oil passages were located or where the potential for oil leakage could be. Thank you 88, look at the lifter side of my block. The gasket area is small and can leak there. Link to comment Share on other sites More sharing options...
outlaw star Posted October 16, 2015 Share Posted October 16, 2015 That is the info I was wanting to see! I have not had one of these motors apart before so was not sure where oil passages were located or where the potential for oil leakage could be. Thank you 88, look at the lifter side of my block. The gasket area is small and can leak there. No problem. Link to comment Share on other sites More sharing options...
Minuit Posted October 16, 2015 Share Posted October 16, 2015 Factory head gaskets prior to about 1993 or so are known to leak oil. Not usually badly but sometimes they can get pretty bad. This is non-pressurized oil draining back down, not your rings or anything internal. There is a revised head gasket available with silicone (I think) in it that corrects this. Link to comment Share on other sites More sharing options...
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