ea49693a   
   From: Not_this_soon@dot.net   
      
   Fowie wrote:   
   > My 83 toyota has been running great aside from the occasional part   
   > here and there going bad.  I drove it from Los Alamos to Albequerque   
   > Friday and it ran great.  However once I got into town and below   
   > freeway speed I noticed some tapping.  The tapping only happens when I   
   > apply minor acceleration, i.e. when I very first shift into a gear or   
   > when I'm driving around town, 35 mph or so, and don't need to have the   
   > pedal to the floor.  At freeway speeds when I've gotta have the   
   > throttle all the way open just to keep up with traffic it doesn't tap,   
   > same with when I'm coasting, but when I just apply a little   
   > accelerator I get the tapping.  Suggestions on what I should check/do   
   > first?   
   >   
   The noise you describe could be timing chain slap. The plastic guides   
   are known to fail. They can be inspected with the valve cover removed.   
      
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