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I have an 84 jeep 258 6 cyl. It has 166K miles on it. It ran good until I recently chnaged the oil in it. Now I am getting lifter noise that is intermittent with oil in the air breather. Now it it is acting like the timing is off (no power and backfiring through the carb) I pulled the PVC valve and there is no smoking from the cover or the tailpipe. The carb is new and it was recently tuned. Any thoughts?

5/13/084:40 AM

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buick8Member

Check the cam timing, it might have jumped. Lots of possibilities with that many miles on it.

5/14/0810:56 AM

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geeaeaMember

check for timing chain slack by turning the crank with a socket/ratchet and watching the distributor rotor for movement. I think 12 degrees is the limit and I believe that's total slack. You move in one direction until the dizzy starts moving ..and then go the other direction until it moves again.

7/19/088:53 AM

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