Just finished installing a rebuilt 2.5 , 4cyl in my 89 Jeep wrangler. Runs but is idling rough. Cylinder 4 is the only one where the plug is clean after running for only a minute or so,,, #2 is soaking wet and #1 and #3 have carbon build up on only one side.
I am really trying to find out if anyone knows where the timing mark, on the flywheel is supposed to be when I am at TDC on cylinder #1. Should it be on the crankshaft position sensor, or is it there at the beginning of the compression stroke. The flywheel will only go on one way the best I can tell, A little worried that the new crank shaft was machined wrong.