86 Jeep CJ-7 with a 4.2l
Jeep was running great yesterday like it has been for a few months now. Went out today to pull it into the garage to work on some lighting and as soon as it starts it is backfiring/popping through the carb.
First thing I did was a compression check which turned out good. (All cylinders within 5% or so and around 110 psi) Checked a few other things and then decided to pull off the valve cover to make sure I didn't have a broken valve spring or something and found this:
Looked a little further into it and the push rod is not bent,valve spring seems okay, rocker is good. My question is what would cause this? Only thing I can think if is a collapsed lifter or something along those lines. As of right now the only way to get the push rod back under the lifter is to loosen the rocker and re-adjust.
Should I just put it back together and see what happens? I have a trip this upcoming weekend so I really want to get this figured out..
Thanks for the help!