| After all had
cooled off we measured the diameters of the hole in the valveguide
and the valvestem; the hole was 0.12 mm too small. This is normal
as the valveguide will shrink a little bit when installed, so
we used an adjustable reamer and carefully made the hole 0.10
bigger. For the last 0.02 mm we used a "Sunnen" honing
machine as this gives the best possible finish. Of course each
valve and guide were measured separately as there are small
differences in valve stem and valve guide diameters.
|
