15-1
Valve gear, servicing
Notes:
Cylinder heads which have cracks between the
valve seats or between valve seat inserts and
the spark plug thread can be used further
without reducing service life, provided the
cracks do not exceed a maximum of 0.3 mm in
width, or when no more than the first 4 turns of
the spark plug threads are cracked.
After installing new lifters the engine must not
be started for about 30 minutes (otherwise
valves will strike pistons). Turn crankshaft two
complete revolutions before starting.
Carefully apply a small amount of sealant D 454
300 A2 at the four end points of the sealing
surfaces on the cylinder head, using a small
screwdriver Fig. 1
.
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15-75
Camshafts and camshaft adjusters,
removing and installing
Removing
Cylinder head installed
Repair Manual, Body Exterior, Repair Group 63
Repair Manual, Body Exterior, Repair Group 50
Left cylinder head - Remove noise insulation panel -arrows-.
- Remove front bumper
- Move lock carrier to service position- Remove ribbed belt Page 13
-1 .
- Remove toothed belt Page 13
-4 .
- Remove left-hand cylinder head cover Page 15
-22
.
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