8) the horizontal shaft you're asking about is a balance shaft, designed to turn at 1/2 engine speed to absorb engine vibrations. :Wink:
need more description of the tapping noise. Does it sound like just one component tapping every revolution, or is it more than one noise?
You may be able to isolate it to a cylender by unpluggine one injector at a time at idle and listen to see if the noise gets louder or quieter on each cylender.
I agree to start by taking the belt off first.
Wednesday, December 13th, 2006 AT 10:30 PM