Join Date: Nov 1999
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Wierd engine prob..need answers quick!
1984 CJ-7 with 258. 81,000 miles, HEI, Weber 38
Today, when I started my jeep up to drive home from work, it sounded like someone had removed a spark plug wire. I quickly checked all possible easy fixes, but the ignition was fine. I limped the short way home and began troubleshooting. Since I had an occasional tapping,(but what engine of this vintage doesn't!) I pulled the valve cover for a looksee.
What I found really puzzles me. The #1 cylinder intake pushrod was just lying in it's lifter bore, outside of the rocker. I checked the pushrod against it's neighbor, and it's not bent, or anymore short/worn than the other. Same with the rocker. I looked down at the lifter, from the top it looks fine. I droppped the pushrod back down, manually rotated the engine 360, and it seemed to move up and down in a normal fashion. I reassembled the pushrods, torqued down the rocker arms, drizzled some oil over them, then fired it up and watched the valve train. I ran it till it started to make a mess, and everything seemed fine.
Whats up with that?? The rocker bolts WERE NOT loose, I guess I should add, and the last shutdown this morning was fine, no backfire or anything.
Someone please help me!