[Shotimes] Back to valve lash ticking

[George Fourchy]

On Thu, 17 Apr 2003 22:22:24 -0700, Kerry Kinion wrote:

>Should I worry about this or just forget about it??

Did you torque the damper properly?  A medium frequency thudding from the
engine at idle speed up to about 2K or so could be the timing sprocket loose,
bouncing back and forth on the crank, eating away the crank and the woodruff
key.  That's "crankshaft cancer".  Usually it takes several thousand miles to
start being audible, but if you just did the 60K, you might have thought you
torqued the damper but didn't.  That is one of the few weak points in the
engine... that damper/sprocket/key area.

Jack it up, take off the right front wheel, remove the fender liner, and take a
dowel or other long pointed device (if you don't have a stethoscope) and stick
it into the center of the damper bolt while the engine is idling.  The bolt is
concave, so the stick or whatever will stay in the center, even with it
running, as long as you apply pressure to it.  Put your ear to the end, and
listen for the sound through the stick.  If it is the sprocket, you will hear
the noise in the stick at the same time you hear it ambiently, like you would
just standing there.  See the FAQ for how to fix this problem, or tell me you
have it, and I'll tell you.

George