Volkswagen Type II Transporter 1200 Series Shop Manual page 17

screws and arm ball sockets for wear. Renew worn
components as necessary.
(3) Instal the rocker arms and support brackets on the
shaft in their original positions, and with the word TOP on
the support brackets outwards.
(4) The washers should be fitted in sets of three with
the waved washers inserted between the flat washers. Each
set of three washers should be positioned at the sides of the
rocker arms adjacent to the circlips.
(5) With the washers in position instal the circlips at
each end of the shafts.
4. t::VLINDER HEADS AND VALVES
1200
~lODELS
TO ].4Nl!ARY, 1963
"fO 'DISMANTLE
(1) Remove the cylinder head assemblies from the
engine as described earlier and place them on a clean bench.
NOTE: The following procedure
is
applicable to both
cylinqer heads.
(2) Using a suitable valve spring compressor, compress
each valve spring in turn to remove the valve retaining
collets, remove the compressor.
(3) Lift off the valve spring retainer and spring.
(4) Remove any burrs on the valve stem collet grooves
to prevent damage to the valve guides when the valves are
removed.
(5) Remove the valves from the cylinder heads and
place them in
a
rack so that they can be installed in their
original positions when reassembling the cylinder head.
TO CLEAN AND INSPECT
(1) Clean each valve thoroughly and renew any that are
burned or cracked across the face, or that have berit or
warped stems.
NOTE: Maximum permitted valve stem rnn-out
is
.0004".
(2) Remove the carbon deposits from the combustion
chambers and ports and check the condition of the valve
seats in the head. If the seat inserts are cracked, badly
burnt, or the outer edge of the top chamfer exceeds the
outer diameter of the valve seat insert, a reconditioned or
new cylinder head should be fitted.
NOTE: The fitting of valve seat inserts is a specialist job
requzrzng special equipment and therefore is not
recommended.
(3) Check the cylinder heads for cracks in the
combustion chambers and ports, cracked cylinder heads
should be replaced.
( 4) Check that the valve guides are not excessively
17
~HAIRPIN
-CLIP
Engine-11
.
(.')
SPACER WASHERS<
c
_WAVED WASHER
~
. .
~-ROCKER
ARM
SUPPORT
-1-.' . lli-
~~~~~, I
SPACER WASHERS
ROCKER ARM
---WAVED WASHER
c:;:::::::..___
HAIRPIN CLIPS
c:c:-~
0
o - ·
WAVED WASHER
ROCKER SHAFT
~- ROC~ER
ARM
SPACER WASHERS
SUPPORT
~-
ROCKER ARM
SPACER
<~0-·
WASHERS
""0 .
WAVED WASHER
~'--
HAIRPIN CLIP
Exploded Rocker Shaft Components. (Note the word TOP
on rocker supports.)
worn, the maximum permitted clearance between the valve
stem and guide should not exceed .0063 ".
NOTE: The fitting of valve guides is a specialist job ·
requiring · special equipment and therefore is not
recommended.
(5) Check the valve spring against the specifications. If
a spring tester is not available, test by comparison with a
new spring.