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Oil the cylinder bores slightly and push the rings in with a piston top
one by one. Check the fit and measure the gap between the ring ends.
The factory specifies a 0.30-0.50 mm gap for the first compression ring
and a 0.16-0.65 mm for the second. If the rings were ordered correctly for
your application (e.g. standard size), you should not have to adjust them.
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Piston and crankshaft installation on a Saab B204/B234 engine. This engine
is found in all four-cylinder Saab 900 and 9000 from 1994 to 1998, as well
as 1999 9-3. Newer cars have lighter pistons and a slightly different
block but the procedure is still the same.
Tools and supplies:
- Torx E16 socket: main crankshaft cap bolts;
- 12-point 14 mm socket: connecting rod cap nuts;
- 6-point 14 mm socket: oil jets;
- torque wrench;
- piston ring compressor;
- piston ring expander;
- fresh engine oil.
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