Mazda 626 1981 - 01-08

Fig, 1- 28
L
--1;--[-_ ---- ----r-r- ___ ;g -----r+-_ _ IN
Fig. 1-30
Fig. 1- 31
1-C -5 . Checking Valve Stem to Guide Clearance
The standard clearance between the
va l ve stem and
guide should be, under the condition
of the guide being
fitted with the cylinder head, 0.018 - 0.053 mm
(0. 0007 - 0.0021 in) on the inlet side and 0.018 -
0.0
58 mm (0. 0007 ~ 0.0023 in) on the exhaust side.
To check this clearance, place the va lv e in each guide:
Check the clearance with a suitable mounted dial indi-
cator, or
feel the clearance by moving the stem back a nd
forth. If the clearance is 0. 20 mm (0.008 in) or more;
replace the valve guide and valve.
1
-C-6. Replacing Valve Guide
I. Press
out the old guide with the puller & installer
(49 0221 251A).
2. Press in the new guide squarely with the same tool
until the ring on the guide touches the cy
li nder
head.
Note:
Inlet and exhaust v al ve guides are different as shown
in F ig. 1-30 .
3. Install the new
va l ve seal onto the va l ve guide with
the pusher (49 0223 160D).
Not e:
When installing the va lve seal, be careful not to twist
and check
to see if the valve moves smoothy.
I : 8