1024A10 CRANKSHAFT - R.R WITH ENGINE REMOVED - CHECK AND, IF NECESSARY, REPLACE MAIN JOURNALS AND CRANKPINS - Fiat - DOBLO - eLearn

2585290 - 1024A10 CRANKSHAFT - R.R WITH ENGINE REMOVED - CHECK AND, IF NECESSARY, REPLACE MAIN JOURNALS AND CRANKPINS

) Op. 1020D17 CRANKSHAFT OIL SEAL FRONT COVER - R.R. AND REPLACE GASKETS FOR VERSIONS WITH OIL PUMP ON TIMING SIDE CRANKSHAFT AND HEAT EXCHANGER WITH ENGINE REMOVEDFit the tool.

	Name	Country
1	Counter-torque	1.860.846.000

Fit the flywheel, apply LOCTITE 573 to the bolts and tighten them to torque.

1. Fit the tool.2. Undo the bolts (2a) and remove the clutch (2b).

	Name	Country
1	Counter-torque	1.860.846.000

1. Undo the bolts (1a) and remove the flywheel (1b).Remove the tool.

	Name	Country
-	Counter-torque	1.860.846.000

1. Undo the bolts (1a) and remove the crankcase rear cover (1b) with the oil seal integrated.2. Fit the tool.

Refitting ( Removing

) Rotate the crankshaft using the tool fitted previously until the pistons of cylinders no. 1 and no. 4 are at B.D.C.1. Undo the bolts (1a) and remove the connecting rod caps (1b) for cylinders 1 and 4.2. Remove the lower connecting rod half bearings for cylinders no. 1 and no. 4.Proceed in the same way to remove the connecting rod caps and bearing halves for cylinders 2 and 3.3. Undo the bolts (3a) and remove the bearing caps (3b).4. Remove the lower main journal half-bearings.

Visually inspect the condition of the main journal and connecting rod half-bearings and, if necessary, replace them.

Check one journal at a time without moving the crankshaft.

1. Fit the main journal caps complete with half-bearings.

1. Tighten the bearing cap bolts (1a) to torque using the angular tightening tool (1b).

1. Remove the main bearing caps and measure journal backlash using a graduated measuring device.

If the reading is not within the specified range, replace the main bearing halves with new bearing halves of appropriate size and category.

Fit the thrust washers on the 3rd main bearing.

1. Tighten the bolts (1a) for the connecting rod caps to torque, using the angular tightening tool (1b).

Fit the upper connecting rod half-bearings on the connecting rods.

Check one pin at a time without turning the crankshaft.

1. Apply calibrated wire (plastigage) to measure crankpin backlash.

Fit the connecting rod caps with bearing halves.

1. Measure the clearance between pin and bearings using a measuring device. Then retighten the connecting rod cap bolts to torque as described previously.

Fit the upper connecting rod half-bearings on the connecting rods.

	Fastening	Component	Ø	Value(daNm)
1a	Bolt	BIG END BEARING CAPS	M9	2.4 - 2.6 + 60°

Rotate the crankshaft using the tool fitted previously until cylinders no. 1 and no. 4 are at B.D.C.Fit the connecting rod caps and bearing halves for cylinders 1 and 4 and screw in the bolts without tightening.

	Name	Country
1b	Protractor	1.860.942.000

Remove the tool.

	Name	Country
-	Flange	1.860.815.000

1. Fit the crankcase rear cover.

	Fastening	Component	Ø	Value(daNm)
2	Bolt	FLYWHEEL SIDE COVER	M6	0.8 - 1.0

2. Tighten the crankcase rear cover bolts to torque.