CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
4.2
Removing and installing pistons
Note
If pistons with 3-part oil scraper ring are installed without the pis‐
ton installation sleeve - T40347- , the oil scraper ring will be
damaged.
Special tools and workshop equipment required
♦ Drift - VW 222 A-
♦ Piston installation sleeve - T40347- (not shown)
Removing
– Remove engine, and secure it to engine and gearbox support
- VAS 6095- .
– Remove cylinder head ⇒ page 142 .
– Remove upper part of sump ⇒ page 218 .
– Mark piston installation position and corresponding cylinder
number.
– Mark conrod installation position and corresponding cylinder
number ⇒ Item 4 (page 80) .
– Remove conrod bearing cap and withdraw piston and conrod
upwards.
4. Pistons and conrods
83
CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018
– Remove retaining ring from piston pin eye.
– Remove retaining ring -2- from piston pin eye.
– Drive out piston pin -3- using drift - VW 222A- .
Note
If the piston pin is difficult to move, heat the piston to approx. 60°
C.
– Remove piston -1- from conrod -4-.
Installing
Installation is carried out in the reverse order. When installing,
note the following:
•
Renew bolts that are tightened with turning further angle after
each removal.
•
Arrow on piston crown points to belt pulley end.
– Install oil scraper ring: procedure for 3-part oil scraper ring
⇒ page 82 .
– Install compression rings ⇒ page 82 .
– Oil contact surfaces of bearing shells and cylinder wall with
engine oil.
– Carefully push piston -1- into cylinder -arrow- by hand using
piston installation sleeve -T40347- .
– Install conrod bearing cap, noting installation position
⇒ Item 2 (page 80) .
– Install cylinder head ⇒ page 142 .
– Install upper part of sump ⇒ page 218 .
Specified torques
♦ ⇒ page 80
4.3
Checking pistons and cylinder bores
Checking piston
Special tools and workshop equipment required
♦ Micrometre 75 - 100 mm - VAS 6071-
– Using a micrometer, measure approx. 15 mm from the lower
edge, perpendicular to the piston pin axis.
♦ Difference between actual and nominal diameter max.
0.04 mm.
84
Rep. gr.13 - Crankshaft group
2024 VW Passat Owner's Manual
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