Daewoo Nubira User Manual page 468

DAEWOO V–121 BL4
DOHC ENGINE MECHANICAL 1C – 73
Valve Guide – Ream
1. Measure the diameter of the valve guide using
gauge MKM–571–B and a commercially–available
inside micrometer.
Important : Valve oversizes may already have been fitted
in production.
2. An oversize service code is on the valve guide and
the valve stem end. The following table gives the
correct size, reamer, and production code for each
service.
Size Reamer
Normal –
0.075 KM–805
0.150
3. Ream the valve guide from the upper side of the
cylinder head to the next oversize.
4. After reaming, cross out the code and emboss the
valve guide with the new code.
Productio Service
n Code Code
– K
1 K1
2 K2