I think I may need a new timing chain and sprockets.
I did a crude test by seeing how many degrees my 258 engine will turn before making the rotor in the distributer move. I measured 12 degrees slack (actually, the harmonic damper moved 3/4" before the rotor began to move. Based on the size of the damper, it calculates out to be 12 degrees slack). I'm told this is excessive and that I need a new chain and sprockets. If it were only 3 - 5 degrees it would be OK.
Does this sound like an accurate diagnosis? Any other way to be sure? Is this job a hump or what? Any tips?
Let me add that I can turn the distributor shaft slightly- like the gear at the bottom has some play between the teeth. Maybe about 1/8" rotor movement free-play. Is this normal or am I looking at a new distributor too?
1983 CJ8 Scrambler with 80,000 miles.
Please let me know what you think.
Black '83 CJ8
Rustproof plywood floorboards and bed upgrade.
Lots of work, but working on it.