9-3 Hatchback (9400) L4-2.0L Turbo (B205) (2000)
a
Use a piston ring clamp to fit the rings on the piston.
b
The lower compression ring should be fitted with the side marked 'lop" facing up.
c
Check the fit of the piston rings in their grooves by rolling them round the grooves. Also measure the clearance at several points.
d
Oil the piston and rings before assembly. Turn the compression rings so that their gaps are roughly 180° to each other and position each of them
above one of the gudgeon pin holes.
e
Make sure that the gaps in the top and bottom rings of the three-part scraper ring are staggered round the piston and not in line with each other.
Fitting pistons (in situ)
1
Assemble piston and connecting rod by driving in the gudgeon pin, using a plastic mallet and drift. Make sure that the mark c the piston crown
faces the timing cover and that the numbers on the connecting rods face the exhaust side.
2
Fit the gudgeon pin lock ring.
WARNING: It is extremely important to fit the lock ring with its opening upwards.
3
Place the bearing halves in place in the connecting rods.
4
Fit protective collars 75 19 531 over the connecting rod studs and oil the piston rings, bearings and cylinder.