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  1. J

    02 4.0l XLT Rear cam sprocket mount separating from rest of cam!!

    To answer your question, I didn't attempt to buff off any of the high spots which surely were on the mounting surface. There must have been some, as the sprocket came loose as I detailed. I think when it came loose it knocked off the high spots and the two parts became permanently mated...
  2. J

    02 4.0l XLT Rear cam sprocket mount separating from rest of cam!!

    It's been over a week, so I guess there will be no helpful replies. I did successfully fix the Explorer, so I figured I would write down a few notes in case some other poor fool has the same problem. The timing chain cassette came pre-assembled and was zip tied together. Problem is, the lower...
  3. J

    02 4.0l XLT Rear cam sprocket mount separating from rest of cam!!

    Hello to the group. I am also experiencing this horrendous problem. The truck was running fine, except it needed head gaskets, due to HCs in the cooling system, so I decided to go ahead and pull out the engine, and I had the heads rebuilt by a local machine shop, and replaced all the timing...
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