Tom_W
NAXJA Forum User
- Location
- Tamaqua, PA
My wife's 88 XJ with a 4.0 has been running rough lately, and today it was severe, so when she got home from work, I decided to give it a tune up since it was overdue for one. Well, the tune up didnt help, however I did determine there was no compression on #4 cylinder. When I pulled the plugs, it was all covered in oil, so I did a comp. test and zilch. I blew air into the spark plug hole, and lo and behold, I had air coming out of the dipstick tube. So I am assuming either it has a hole in the piston, or the rings are totally shot. Oh, yeah, it gets "real good" oil pressure now, like pegs the needle instead of running 50 - 60 psi. No water in the oil and runs at normal temp. Since she was using it as a daily driver, going 20 miles to work, I told her to take mine (which I just replaced the engine in last month). Anyway, I was thinking of taking the push rods and lifters off of that cylinder, to keep the valves closed, and not let raw fuel into the oil, or a mixture of oil and fuel out the exhaust, and running it 3 miles back and forth to work for me until I can get another engine to put in it, hopefully in a week or so. Any comments or suggestions are more than welcome.