Any body know the correct procedure for checking the timing on a 98 TJ with 4.0 and a 5-speed. Most every vehicle I have had, there was something you either had to disconnect or disable to check timing. Any help would be appreciated.
Jeeps, Guitars, Jeeps, Guitars,....What else is there????
nycjeep88 is correct. The timing is non adjustable. It is determined by the crank angle sensor in the bell-housing. The pick-up in the dist. is called the cam angle sensor, and is primarly used to control injector timing. Your 4.0l has sequential port fuel injection, as the injectors are timed relative to the intake stroke. There is a "high altitude" crank angle sensor that advances the timing 8 crankshaft degrees, which is 4 dist. degrees.