4410D10 FRONT SUSPENSION FRAME - R+R - Alfa - 159 - eLearn

939010848 - 4410D10 FRONT SUSPENSION FRAME - R+R

) - Position the vehicle on a lift.- Make sure that the ignition key is in the OFF position, then disconnect the battery terminal (-).

	Description	Connector
-	Battery	See A001 BATTERY

1. Undo the fixing bolt (1a) and disconnect the steering column (1b) from the steering box.

The bolt is the pre-treated type and it therefore cannot be reused when refitting.

Op. 4450B12 FRONT WHEELS (TWO) - R+R 1. Undo the nuts securing the front suspension lower wishbones to the wheel steering knuckles.2. Undo the bolts securing the lower forks connecting the front suspension shock absorbers to the lower wishbone, lower wishbone side.

1. Undo the nuts fixing the steering rods to the steering knuckles.2. Disconnect the steering rods (2a) from the front steering knuckle using the tool (2b).

Tool	Description	Function	Validity
1871000700	Extractor	Extracting steering rod from steering knuckle

1. Undo the nuts (1a) and disconnect the front suspension anti-roll bar joints (1b).

1. Undo the lower bolts securing the reinforcements to the front suspension frame.

- Disconnect the front suspension lower wishbones from the wheel steering knuckle assemblies. Op. 1076B72 INTERMEDIATE EXHAUST PIPE WITH HOSE SECTION - R+R 1. Undo the bolts fixing the power unit lower reaction rod, engine crankcase sump side.

1. Undo the bolts fixing the power unit rear support flexible mounting, rigid support side.

- Secure the engine cooling radiator to the headlamp beam.- Draw off the power assisted steering fluid from the reservoir using a suitable syringe.1. Undo the connector (1a) and disconnect the supply pipe from the pump to the power assisted steering box (1b), power assisted steering box side.2. Undo the connector (2a) and disconnect the return pipe from the power steering box to the intermediate pipe (2b), power assisted steering box side.

1. Undo the bolts fixing the front suspension frame to the bodyshell.

1. Position a hydraulic lift (1a) using tools (1b) to support the front suspension frame.

Tool	Description	Function	Validity
1870835001	Hydraulic lift	Rear suspension crossmember support

Tool	Description	Function	Validity
2000002300	Support	Supporting front suspension frame

- If the above hydraulic lift is not available, use a general hydraulic lift plus the adaptor shown in the drawing, which must be made up by the workshop to allow the use of the above frames

(*): Ensure the shank diameter fits the hydraulic lift used. 1. Unscrew the remaining bolts securing the rear suspension frame.

- Lower the hydraulic jack and remove the front suspension frame assembly.1. Working at the bench, undo the bolts (1a) and remove the power unit lower reaction rod (1b) from the front suspension frame.

Mark the position of the lower reaction rod for the power unit in relation to the front suspension frame.

1. Undo the bolts (1a) and remove the anti-roll bar (1b) with joints from the front suspension frame.2. Undo the bolts (2a) and remove the power steering box (2b) from the front suspension frame.

1. Undo the bolts (1a) and remove the flexible mounting for the power unit rear support (1b) from the front suspension frame.

Mark the position of the flexible mounting for the power unit rear support in relation to the front suspension frame.

1. Undo bolts (1a), (1b) and remove the front suspension lower wishbones (1c) from the front suspension frame.

Mark the position of the front suspension lower wishbones in relation to the front suspension frame.

Refitting ( Removing

) 1. Refit the front suspension wishbones (1a) in their seats on the front suspension frame and secure by tightening bolts (1b) to the specified torque and then by tightening bolts (1c) to the specified torque.

Ensure that they are in the position marked upon removal.

1. Place the power unit rear support flexible mounting block (1a) in its housing on the frame and secure it by tightening the bolts (1b) to the recommended torque.

Ensure that they are in the position marked upon removal.

Component	Fastening	dia	Value (daNm)	Validity
Timing side flexible mounting to rigid support	Bolt (to be replaced)	M12	6.3 ÷ 7.7 + 90°

1. Place the power steering box (1a) in its housing in the front suspension frame and secure it by tightening the bolts (1b) to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Power assisted steering box	Bolt (to be replaced)	M12	11.3 ÷ 13.8 + 180°

2. Place the anti-roll bar (2a) in its housing in the front suspension frame and secure it by tightening the bolts (2b) to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Front suspension anti-roll bar	Front bolt	M8	2.2 ÷ 2.6

Component	Fastening	dia	Value (daNm)	Validity
Front suspension anti-roll bar	Rear bolt (to be replaced)	M12	7.2 ÷ 8.8 + 90°

1. Place the power unit lower reaction link (1a) in its housing on the front suspension frame and secure it by tightening the bolts (1b) to the recommended torque.

Ensure that they are in the position marked upon removal.

Component	Fastening	dia	Value (daNm)	Validity
Engine side lower reaction rod to front suspension frame	Bolt (to be replaced)	M12	6.3 ÷ 7.7 + 60°

- Refit the front suspension frame assembly using the mounting tools and hydraulic lift.- Tighten the bolts securing the front suspension frame to the bodyshell to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Front suspension frame	Front bolt (to be replaced)	M14	16.2 ÷ 19.8 + 90°

Component	Fastening	dia	Value (daNm)	Validity
Front suspension frame	Centre bolt (to be replaced)	M14	11.7 ÷ 14.3 + 90°

Component	Fastening	dia	Value (daNm)	Validity
Front suspension frame	Rear bolt (to be replaced)	M14	9.9 ÷ 12.1 + 90°

- Remove the tool and the hydraulic jack used to support the front suspension frame.

Tool	Description	Function	Validity
2000002300	Support	Supporting front suspension frame

Tool	Description	Function	Validity
1870835001	Hydraulic lift	Rear suspension crossmember support

1. Connect the return pipe from the power assisted steering box to the intermediate pipe (1a), power assisted steering box side and tighten the connector (1b) to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Return pipe from power assisted steering box	Connector	M12	2.7 ÷ 3.3

2. Connect the supply pipe from the pump to the power assisted steering box (2a), power assisted steering box side and tighten the connector (2b) to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Supply pipe from pump to power assisted steering box - power steering box side	Connector	M14	3.6 ÷ 4.4

1. Tighten the bolts fixing the power unit rear support flexible mounting, rigid support side to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Timing side flexible mounting to bodyshell	Bolt	M10	5.4 ÷ 6.6

1. Tighten the bolts fixing the lower reaction rod for the power unit, engine crankcase sump side to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Engine side lower reaction rod to engine	Bolt	M10	5.4 ÷ 6.6

Op. 1076B72 INTERMEDIATE EXHAUST PIPE WITH HOSE SECTION - R+R - Connect the front suspension lower wishbones to the wheel steering knuckle assemblies.1. Tighten the lower bolts fixing the reinforcements to the front suspension frame to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
Underbody reinforcements	Bolt	M12	7.2 ÷ 8.8

1. Connect joints (1a) to the front suspension stabiliser bar and secure by tightening nuts (1b) to the specified torque.

Component	Fastening	dia	Value (daNm)	Validity
Front suspension anti-roll bar joint - anti-roll bar side	Nut	M12	9.0 ÷ 11.0

1. Connect the steering links (1a) to the front stub axles and tighten the nuts (1b) to the specified torque..

Component	Fastening	dia	Value (daNm)	Validity
Steering rod to steering knuckle	Nut	M12	9.0 ÷ 11.0

1. Tighten the new bolts securing the lower forks connecting the front suspension shock absorbers to the lower wishbone, lower wishbone side, to the specified torque.

Component	Fastening	dia	Value (daNm)	Validity
Lower fork connecting front suspension shock absorber to lower track control arm - lower track control arm side	Bolt (to be replaced)	M14	4.5 ÷ 5.5 + 90°

2. tighten the nuts securing the front suspension lower wishbones to the wheel steering knuckles to the specified torque.

Component	Fastening	dia	Value (daNm)	Validity
Front suspension lower track control arm - steering knuckle side	Nut	M14	8.1 ÷ 9.9

Op. 4450B12 FRONT WHEELS (TWO) - R+R 1. Connect steering column (1a) to the power steering box pinion and secure by tightening a new bolt (1b) to the specified torque.

Component	Fastening	dia	Value (daNm)	Validity
Steering column	Bolt (to be replaced)	M8	2.3 ÷ 2.8

- Connect the negative battery terminal.- Remove the vehicle from the lift.