Kia Soul: Crankshaft Inspection

Kia Soul 2014-2019 PS Service Manual / Engine Mechanical System / Cylinder Block / Crankshaft Inspection

Check the crankshaft main bearing oil clearance.

(1)	To check main bearing-to-journal oil clearance, remove the bearing caps with their lower bearings.

(2)	Clean each main journal and lower bearing with a clean shop towel.

(3)	Place one strip of plastigage across each main journal.

(4)

Reinstall the bearing caps with their lower bearings, then tighten the bolts.

Tightening torque :

17.7 ~ 21.6 N.m (1.8 ~ 2.2 kgf.m, 13.0 ~ 15.9 lb-ft) + 88 ~ 92°

•	Always use new crankshaft main bearing cap bolts. Crankshaft main bearing cap bolts are toque-to-yield bolts designed to be permanently elongated beyond the state of elasticity when torqued, so if the bolts are removed and reused, it may cause the bolts to break or fail to maintain clamping force.

•	Do not turn the crankshaft.

(5)

Remove the bearing caps with their lower bearing again, and measure the widest part of the plastigage.

Oil clearance

No.1, 2, 3, 4, 5 : 0.021 ~ 0.042 mm (0.0008 ~ 0.0017 in)

(6)

If the plastigage measures too wide or too narrow, remove the upper and lower bearing and then install a new bearings with the same color mark. Recheck the oil clearance.

Do not file, shim, or scrape the bearings or the caps to adjust clearance.

(7)

If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing. Recheck the oil clearance.

If the proper clearance cannot be obtained by using the appropriate larger or smaller bearings, replace the crankshaft and start over.

If the marks are indecipherable because of an accumulation of dirt and dust, do not scrub them with a wire brush or scraper. Clean them only with solvent or detergent.

(8)

Select the bearing by using the selection table.

Letters have been stamped on the side of block as a mark for the size of each of the 5 main journal bores.

Use them, and the numbers or letters stamped on the crank (marks for main journal size), to choose the correct bearings.

Crankshaft Main Bearing Selection Table

Crankshaft main bearing		Cylinder block crankshaft journal bore mark
Crankshaft main bearing		A	B	C
Crankshaft main journal mark	1	E (Red)	D (Green)	C (None)
	2	D (Green)	C (None)	B (Black)
	3	C (None)	B (Black)	A (Blue)

Discrimination Of Cylinder Block Crankshaft Journal Bore

Mark	Cylinder block journal bore inner diameter
A or 1	52.000 ~ 52.006 mm (2.0472 ~ 2.0475 in)
B or 2	52.006 ~ 52.012 mm (2.0475 ~ 2.0477 in)
C or 3	52.012 ~ 52.018 mm (2.0477 ~ 2.0479 in)

Discrimination Of Crankshaft Main Journal

Mark	Crankshaft main journal outer diameter
1	47.954 ~ 47.960 mm (1.8879 ~ 1.8882 in)
2	47.948 ~ 47.954 mm (1.8877 ~ 1.8879 in)
3	47.942 ~ 47.948 mm (1.8875 ~ 1.8877 in)

[Type A]

Top surface stamp

[Type B]

Bottom surface stamp

Discrimination Of Crankshaft Main Bearing

Color	Crankshaft main bearing thickness
Blue	2.026 ~ 2.029 mm (0.0798 ~ 0.0799 in)
Black	2.023 ~ 2.026 mm (0.0796 ~ 0.0798 in)
None	2.020 ~ 2.023 mm (0.0795 ~ 0.0796 in)
Green	2.017 ~ 2.020 mm (0.0794 ~ 0.0795 in)
Red	2.014 ~ 2.017 mm (0.0793 ~ 0.0794 in)

Check the crankshaft end play.

Using a dial indicator, measure the thrust clearance while prying the crankshaft back and forth with a screwdriver.

Crankshaft end play

Standard : 0.05 ~ 0.25 mm (0.0020 ~ 0.0098 in)

Limit : 0.30 mm (0.0118 in)

If the end play is greater than specification, replace the center bearing.

Crankshaft Disassembly

• Use fender covers to avoid damaging painted surfaces. • ...

Crankshaft Reassembly

• Thoroughly clean all parts to assembled. • ...