346517 Volvo.Penta Cover

Introduction
The updated Open Crankcase Ventilation system (OCV) reduces oil emulsions during low load conditions at moderate ambient temperatures. The updated (OCV) system increases the temperature of the gases that enter the filter of the (OCV) system. This is accomplished by replacing the aluminum parts of the breather with nonmetallic parts and by insulating the hose from the breather to the canister. The updated (OCV) system contains a revised canister that separates the condensed water from the oil. Only the oil returns back to the engine. The new installed hardware prevents premature tripping of the pressure sensor that measures the pressure of the crankcase ventilation. Some oil emulsion on the oil fill neck is acceptable. Oil emulsion may be present on the inner top surfaces of the valve cover in low load, moderately cool weather conditions. Some oil emulsion is acceptable.Note: The new (OCV) systems are adaptable back to the first production of the listed machines. The change is effective at the factory with the engine serial numbers S/N:LEE22319-UP and ; S/N:SDP22046-UP.C13 Front Mounted Open Crankcase Ventilation System for Kenworth and Peterbuilt Trucks
Illustration 1 g01619518
Front mounted (OCV) system Most common arrangementParts List
Table 1
Required Parts    
Quantity     Part Number     Description    
1     289-3661     Seal    
2     137-8101     O-Ring Seal    
1     289-2088     Seal    
1     328-1024     Breather As    
1     300-9952     Check Valve As    
1     328-6926     Adapter As    
1     328-8880     Fumes Disposal Filter Gp    
1     329-9505     Hose As    
6     8C-8451     Bolt    
1     332-4706     Hose    
1     334-1073     Clamp    
Reused Parts    
1     289-3891     Clip    
1     294-6119     Pressure Sensor Gp    
2     8T-0267     Bolt    
2     8T-6974     Bolt    
8     9X-8256     Washer    
4     9M-1974     Hard Washer    
1     5V-9155     Hose Clamp    
2     9X-2099     Stud    
2     6V-2317     Bolt    
1     313-5867     Filter Bracket    
1     311-6495     Tube As    
1     8T-1117     Hose Clamp    
2     6G-5608     Clamp    
Parts That Need to be Modified    
1     297-5386     Hose    
Illustration 2 g01723514
Upper assembly (1) 328-6926 Adapter As (2) 8T-6974 Bolt (3) 9X-8256 Washer (4) 329-9505 Hose As (5) 8C-8451 Bolt (6) 328-8880 Fumes Disposal Filter Gp Removal of Components
Remove the ventilation hose of the (OCV) system.
Remove the open crankcase ventilation fumes disposal filter.
Remove the mounting bracket for the fumes disposal filter .
Remove the breather assembly.
Reuse all undamaged parts that are not listed in the "Required Parts" section of Table 1.Installation of the New Breather
Illustration 3 g01598133
(7) 328-1024 Breather As (8) 289-2088 Seal (9) 289-3661 Seal
Illustration 4 g01596346
(7) Breather assembly
Illustration 5