ELBOW-EXHAUST 6N1555 - Caterpillar

3406C (8PN),
3406E (5EK) Truck EnginesSUPPLEMENT: 04/01/97Truck Engine News, February 1997, Page 4, "New Oil Supply And Drain Lines In Turbocharger Oil Lines Groups Used With "Mid-Mount", "New Mid-Mount", And "Low Mount" Arrangements"In Chart A, the 136-7363 Elbow Assembly is no longer serviced as an assembly. Instead order the: * 140-5924 Elbow* 136-7226 Seal* 136-7227
In Chart B and C, the 137-4057 Elbow Assembly is no longer serviced as an assemble. Instead order the: * 6V-8626 Elbow* 136-7226 Seal* 136-7227 Seal
In Chart D and E, the 137-7343 Connector Assembly is no longer serviced as an assembly. Instead order the:* 6V-8642 Connector* 136-7226 Seal* 136-7227 Seal
--------------- END SUPPLEMENT ---------------Description of Change: New supply tube assemblies, drain tube assemblies, seals, and bolts are used in the turbocharger oil lines groups used with "mid-mount", "new mid-mount", and "low mount" turbocharger arrangements. The new supply tube assemblies include a teflon tube with a braided stainless steel covering. The new seals must be used with the new supply tube assemblies and new drain tube assemblies. The former seals are still available and are to be used for all repairs on the earlier serial number engines.
Illustration 1. (Typical Turbocharger Oil Lines Group) 126-2702 Seal (1). Supply Tube Assembly (2). 3B-1915 Bolts (3). 126-2704 Seal (4). 114-2687 Seal (5). Drain Tube Assembly (6). 6V-5266 Seal (7). 136-7363 Elbow Assembly (8).Adaptable To: Chart A identifies the changes to the 103-3254 Turbocharger Oil Lines Group (traditional "Mid-Mount" design used with 100-5693 Exhaust Manifold Center Section). The new components in this group are effective with 3406C (8PN10645) and 3406E (5EK89282) Truck Engines. Chart B identifies the changes to the 103-3263 Turbocharger Oil Lines Group (new "Mid-Mount" design with drain to cylinder block used with 100-5694 Exhaust Manifold Center Section). The new components in this group are effective with 3406C (8PN10832) and 3406E (5EK90844) Truck Engines.
Chart C identifies the changes to the 114-1918 Turbocharger Oil Lines Group (new "Mid-Mount" design with drain to oil pan used with 100-5694 Exhaust Manifold Center Section). The new components in this group are effective with 3406C (8PN10832) and 3406E (5EK90844) Truck Engines.
Chart D identifies the changes to the 116-8710 Turbocharger Oil Lines Group ("Low Mount" design with drain to oil pan used with 100-5695 Exhaust Manifold Center Section). The new components in this group are effective with 3406C (8PN11165) and 3406E (5EK94834) Truck Engines.
Chart E identifies the changes to the 114-1917 Turbocharger Oil Lines Group ("Low Mount" design with drain to cylinder block used with 100-5695 Exhaust Manifold Center Section). The new components in this group are effective with 3406C (8PN11165) and 3406E (5EK94834) Truck Engines.
136-7363 Elbow Assembly And 137-7343 Connector Assembly Installation Procedure
The 136-7363 Elbow Assembly and 137-7343 Connector Assembly include an adjustable O-ring boss. Use the following procedure to correctly install these fittings:
Illustration 2. Identification of components. Locknut (A). Back-Up Washer (B). O-ring Seal (C). Non-threaded section of fitting (D).1. Prior to installation, the O-ring seal (C) and back-up washer (B) should be in on the non-threaded section (D) of the