Replacing Valve Stem Seals For Engines With Code Bmm - Skoda Octavia II 2004 Workshop Manual

♦ For vehicles with manual transmission, push the vehicle for‐
ward with the 4th gear engaged and the ignition switched off.
♦ For vehicles with automatic transmission, turn the crankshaft
at the central screw.
– Determine the play between the cams and the bucket tappet:
– Press down the bucket tappet using a wooden or plastic
wedge.
If a 0.20 mm feeler gauge can be slipped between the camshaft
and the bucket tappet:
– Replace hydraulic bucket tappets
Note
After installing the camshaft, the engine must not be cranked
♦
or started for about 30 minutes. The hydraulic bucket tappets
must settle (otherwise valves would strike the pistons).
After carrying out work on the valve gear, carefully crank en‐
♦
gine at least 2 revolutions to ensure that no valve touches the
piston when the engine is started.
2.14 Replacing valve stem seals for engines
with code BMM
Cylinder head fitted
Special tools and workshop equipment required
♦ Valve assembly device - MP 1-213 (2036) -
♦ Extractor - MP 1-206 (3047 A)-
♦ Insertion tool - MP 1-306 (10-204)-
♦ Valve lever - MP 1-211 (VW 541/1A)-
Note
With cylinder head removed:
♦
Remove glow plugs from the cylinder head
♦
Remove unit injectors from the cylinder head
♦
Position cylinder head on a suitable flat valve supporting plate.
♦
Removing
– Remove the camshafts
Note
Ensure that the used bearing shells of the camshaft are not
♦
mixed up (pay attention to marking).
When installing the camshaft, ensure it is correctly located in
♦
the retaining lugs of the bearing shells in the bearing caps and
in the cylinder head.
Ensure that the bucket tappets are not mixed up, for this step
♦
mark the assignment with waterproof marker on the reverse
side.
⇒ page 115 .
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⇒ page 221
⇒ page 115 .
Octavia II 2004 ➤ , Octavia II 2010 ➤
2.0/100; 103 kW TDI PD Engine - Edition 01.2018
.
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119
2. Repairing Valve Gear