1028H34 PISTON/CYLINDER LINER SET - R R (AUTOMATIC TRANSMISSION) - Alfa - 166 - eLearn

3315373 - 1028H34 piston/cylinder liner set - r r (Automatic transmission)

) 1. Release the electrical wiring for the rpm and timing sensor from the fixing on the crankcase sump.2. Undo the bolts (2a) and remove the rpm and timing sensor (2b).3. Undo the bolts fixing the crankcase sump.Heat the area where the crankcase sump matches with the cylinder block/crankcase and cut the sealant.4. Remove the crankcase sump.

1. Fit the tool for rotating the crankshaft.

	Name	Country
1	Flange	1.820.618.000

Rotate the crankshaft until the right connecting rod caps are accessible.2. Undo the bolts (2a) and remove the right big end bearing caps (2b) complete with bearing shells (2c).3. Remove the bore/liner locks.

	Name	Country
3	Liner/bore holder	1.820.279.000

4. Remove the bores/liners, pistons and connecting rods for the right side.Proceed in the same way on the left side.

Refitting ( Removing

) Rotate the engine throughi 180° on the overhauling stand.Place the cylinder liners/bores, complete with seals, pistons and connecting rods back in their housings.

The pistons are fitted with the arrow stamped on the crown facing the front of the engine.

1. Fit the liner/bore locks and tighten the nuts to a torque of 1.0 - 1.5 daNm.

	Name	Country
1	Liner/bore holder	1.820.279.000

2. Measure the projection of the cylinder liners/bores in relation to the cylinder block/crankcase (2a) plane using the tool (2b) fitted with a dial gauge (2c) and check that it is within the recommended limits.

	Measurement		Value
2a	Projection from cylinder block surface (mm)		0.01 ÷ 0.06

	Name	Country
2b	Dial gauge mounting	1.825.003.000

Repeat the above operations on the other side.

Rotate the engine through 180° on the overhauling stand.1. Fit the connecting rod caps (1a), complete with half-bearings (1b), and fix them tightening the bolts (1c) to the recommended torque.

The connecting rod caps have the number of the cylinder to which they belong on one side: when refitting, this number should be on the same side as the one on the small end.

	Fastening	Component	Ø	Value(daNm)
1c	Bolt	BIG END BEARING CAPS	M9	1.9 ÷ 2.1 + 48? ÷ 52?

Use the tool for angular tightening of the connecting rod cap bolts.2.

	Name	Country
-	Protractor	1.860.942.000

Remove the tool for rotating the crankshaft.

	Name	Country
2	Flange	1.820.618.000

Apply the recommended sealant to the entire perimeter of the crankcase sump.

Check the condition of the sealant on the rear main bearing cap; re-apply if necessary.

	Type	Component	Name	Qty.
-	Sealant	OIL SUMP	LOCTITE 5900	-

1. Fitt the crankcase sump (1a) and fix it tightening the bolts (1b) and the bolt (1c) to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
1b	Bolt	OIL SUMP	M7	Engine crankcase side 1.3 - 1.6

	Fastening	Component	Ø	Value(daNm)
1c	Bolt	OIL SUMP	M7	Engine block side 0.9 - 1.2

2. Fit the timing and rpm sensor (2a) and fix it using the bolts (2b).3. Fix the electrical wiring for the rpm and timing sensor on the crankcase sump.