Engine - New Crankshaft Radial Lip Seal
Date: July 1998Order No.: P-SI-03/51
Supersedes:
Group: O3
SUBJECT:
ENGINE 606.962
NEW CRANKSHAFT RADIAL LIP SEAL AND VIBRATION DAMPER WITH A NON- HARDENED SEALING SURFACE
Starting with July 1997 production, a new style crankshaft radial lip seal (with a teflon sealing lip) has been installed on the front of the crankshaft. A vibration damper with a non-hardened sealing surface for the radial lip seal will be introduced at a later date. The new style crankshaft radial lip seal exerts less pressure on the vibration damper sealing surface.
Effective Serial Number
Model Motor Engine End Number
210.025 606.962 007590
Installation notes:
The new style crankshaft radial lip seal can be installed on earlier engines (606.910/912) with a hardened sealing surface vibration dampner. Under no circumstances should the conventional style radial lip seal be installed in conjunction with a non-hardened sealing surface vibration dampener as this combination will not seal properly and will lead to oil leakage.
Due to the reduced wear to the sealing surface, it is no longer necessary to install the radial lip seal in the repair position.
The non-hardened vibration damper can be identified by the part number on the rear of the damper. Parts identification information
Part name Motor Part Number
Vibration damper 606.91 606 030 03 03
606.96 606 030 04 03
The newer style radial lip seal will be available after the current inventory of seals is depleted.
Parts information
Qty. Part Name Part Number
(Old) (New)
1 Radial lip seal 018 997 1947 021 997 18 47
A new installation sleeve is required to prevent damaging the radial lip seal during installation. This new sleeve replaces the sleeve currently in use.
Special Tool
Part Name Group/Category Part Number
(Old) (New)
Sleeve 03/C 606 589 00 14 00 611 589001400
In Case of Warranty
Operation: Replacement of front crankshaft oil seal