Daewoo D1146 - Page 56

D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
52
Printed in Jan. 2001 PS-MMA0415-E1A
z For the disassembling of valve seat,
by welding the welding bead to a
valve seat rotating tool or valve seat,
pull it out with a special tool.
z For the assembling of a new valve
seat, by putting it among the dry ices
of an ice box previously for about 2
hours for the cold shrinkage, and
press it in the cylinder head by a
special tool. (bench press)
z Apply valve lapping compound to the
valve head seating face on the valve
seat and lap the valve seat by turning it
until it is seated in position, then wipe
out the lapping compound.
4) Valve spring
z Visual check
Check the appearance of valve
spring and if necessary replace the
spring.
z Valve spring free length
Use a vernier caliper to measure the
valve spring free length.
If the measured value is less than
the specified limit, the valve spring
must be replaced.
(mm)
Spring free Length Standard
Intake valve
64 mm
Inner
D1146/TI : 60
DE08TIS : 73.8
Exhaust
valve
Outer
D1146/TI : 71
DE08TIS : 77.7
M1072
M1078