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Measuring piston protrusion
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Measuring piston protrusion
Fig. 1
Remove the cylinder heads.
Turn the piston to be measured to TDC.
Apply the dial gauge holder with dial gauge to the
crankcase sealing face.
Set the dial gauge to -0-.
Fig. 2
Carefully slew dial gauge holder round, lifting the
dial gauge tip as you do so.
Lower the tip of the dial gauge to the piston crown
and read off the piston protrusion.