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Help with alingment of head stock

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lilyies:
I have just refurbished the head stock on my old tiawanise lathe.
Have used a test bar for alignment.It is telling me that head stock
is running true when I travel the length of the test bar.It is also
telling me there is no taper when I put the indicator on the top of the
test bar. no run out in spindle mt5.Put the indictor at the end of
 test bar and rotate 8thou run out like an oval.?????  : :

sparky961:
How did you validate the test bar before beginning? Seems suspect to me.

lilyies:
Mate the test bar is ground to .0002 this thing has me baffeled.

Pete.:
You can have no runout in the bar, no runout in the MT5 socket, but the bar will run out in the socket if there's dirt, rust or dings on either.

You have to fix the runout before using the bar to test the alignment, or you'll always get a false reading.

lilyies:
Have no runout in head stock mt5 no runout in testbar.??? :scratch:

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