Scania DC12 - Fitting a Piston

01:03-02
©
Scania CV AB 2011, Sweden
89
Fitting a piston
Tightening torques
Special tools
1 Lubricate the piston, piston rings, cylinder
liner and piston ring compressor with
engine oil.
2 Remove the protection on the connecting
rod race and lubricate it.
3 Turn the piston rings so that the gaps are
distributed around the piston.
4 Fit the upper connecting rod bearing shell to
the connecting rod and lubricate the bearing
surface.
5 For engines with a scraper ring in the lining:
Fit the assembly tool 99 380 in the lining in
place of the scraper ring.
Bolts for oil sump with unmachined surface 32 Nm
Bolts for oil sump with machined surface 26 Nm
Connecting rod cap with 4 bolts 20 Nm + 90°
Connecting rod cap with 2 bolts 50 Nm + 90°
Piston cooling nozzle 23 Nm
Number Denomination Illustration Tool board
98 212 Piston ring compressor D3
99 380 Assembly tool
98 212
110 060
Crank mechanism
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