Replace front crankshaft radial sealing ring

AR03.20-G-3000B

Replace front crankshaft radial sealing ring

9.1.12



Removing

1

Remove belt pulley or vibration damper

AR03.30-G-1600B

2.1

Remove radial shaft sealing ring (1)

Model 437.4 except code (Z16) Special parts fording capability, model 405

2.2

Remove outer radial shaft sealing ring (2) and inner radial shaft sealing ring (3)

Model 437.4 with code (Z16) Special parts fording capability



Checking

3

Inspect running surface at crankshaft for scores and galling



Install

4.1.1

Screw assembly tool (4) onto crankshaft and push radial shaft sealing ring (1) from the rear over the assembly tool (4)

Model 437.4 except code (Z16) Special parts fording capability, model 405

 The sealing lip of radial shaft sealing ring (1) must point on the  assembly tool (4) in the direction of the oil pump.

 Assembly tool

*904589041500

4.1.2

Press radial shaft sealing ring (1) with assembly tool (4) into the oil pump housing

Model 437.4 except code (Z16) Special parts fording capability, model 405

 Dry radial shaft sealing ring (1) and press in evenly around the entire circumference.

Position cutout (arrow) exactly.

Press in radial shaft sealing ring (1) down to the end stop of the  assembly tool (4) and do not damage.

 Assembly tool

*904589041500

4.2.1

Screw assembly tool (4) onto crankshaft and push inner radial shaft sealing ring (3) from the rear over the assembly tool (4)

Model 437.4 with code (Z16) Special parts fording capability

 The sealing lip of inner radial shaft sealing ring (3) must point on the
 assembly tool (4) in the direction of the oil pump.

 Assembly tool

*904589041500

4.2.2

Press in inner radial shaft sealing ring (3) with assembly tool (4) and assembly ring (5) in the oil pump housing

Model 437.4 with code (Z16) Special parts fording capability

 Dry inner radial shaft sealing ring (3) and press in evenly around the entire circumference.

Position cutout (arrow) exactly.

Press in inner radial shaft sealing ring (3) down to the end stop of the  assembly ring (5) and do not damage.

 Assembly tool

*904589041500

 Mounting ring

*904589051500

4.2.3

Push outer radial shaft sealing ring (2) from the rear over the assembly tool (4)

Model 437.4 with code (Z16) Special parts fording capability

 The sealing lip of outer radial shaft sealing ring (2) must point on the
 assembly tool (4) in the direction of the oil pump.

 Assembly tool

*904589041500

4.2.4

Press outer radial shaft sealing ring (2) with assembly tool (4) into the oil pump housing

Model 437.4 with code (Z16) Special parts fording capability

 Dry outer radial shaft sealing ring (2) and press in evenly around the entire circumference.

Position cutout (arrow) exactly.

Press in outer radial shaft sealing ring (2) down to the end stop of the  assembly tool (4) and do not damage.

 Assembly tool

*904589041500

5

Remove assembly tool (4)

 Assembly tool

*904589041500

6

Install belt pulley or vibration damper

AR03.30-G-1600B