17738-ZY3-000 Honda PLUG, FUEL TUBE (Honda Code 7214125).

Table 1
Revision History
Revision Summary of Changes
01 Updated references Reference
Reference: Cat® Electronic Media Center, Application & Installation Guide, LEBW4978, "Cooling Systems"Note: A CWS login is required to access the Cat® Electronic Media Center. Copy the following link into a web browser.https://emc.cat.com
Reference: Operation and Maintenance Manual , M0103791 , "G3520 Generator Sets"Safety
Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
Required Tools
Table 2
Required Tools
Item Qty Part Number Part Name
T1 1 393-0673 EMISSIONS ANALYZER TOOL GP
T2 1 391-8170 EMISSIONS ANALYZER TOOL GPBluetooth Module Requirements for Cooling System
The cooling system venting is perhaps one of the more under appreciated components of the cooling system. The cooling system venting, makes certain the cooling system performance is not compromised by entrained air. Entrained air in the coolant flow can affect the cooling capability of the coolant.G3500 engines with water-cooled valve seats (cross-flow cylinder heads) are more susceptible to mechanical issues due to trapped air in the cooling system. Extra care must be taken on these engines to ensure that best venting practices are followed.Reference: Refer to Operation and Maintenance Manual , M0103791 , "Coolant (NGEC) - Change" and search for the (Fill the Cooling System) section for additional information.Reference: Refer to the venting section of the Application & Installation Guide, LEBW4978 , "Cooling Systems" for general information on venting best practices.The following illustrations help clarify venting locations and best practices specific to G3500 engines:Note: The customer installed lines shown are examples and the images do not include the required flex connections between the engine and customer installed lines.
Illustration 1 identifies required venting locations on engine for G3500 engines.
Illustrations 2 through 4 provide examples of appropriate locations for vent line connections on customer installed water lines. In general all local high points of customer installed water lines need to be vented. The venting is in addition to the on engine vent locations shown in Illustration 1.
Illustrations 5and 6 provide a generic schematic for the jacket water customer installed water lines and the SCAC customer installed water lines.
Illustration 1 g06260656
G3500 on-engine vent locations
(1) (Location 1) Jacket water (first stage) vent location connection
(2) (Location 2) SCAC (second stage) vent location connection
Illustration 2 g06257161
G3500 jacket water vent location examples on customer installed lines for an engine with pumps
(3) (Location 3) Customer installed jacket water outlet line vent connection.Note: (Location 3) vent (3) must vent at all local high points in the line. See the two examples above. The jacket water outlet line can be left hand or right hand configured.
Illustration 3 g06260415
G3500 jacket water vent location examples on customer installed lines for an engine with customer supplied pumps
(3) (Location 3) Customer installed jacket water outlet line vent connection.
(4) (Location 4) Customer installed jacket water bypass line vent connection.Note: The engine may also be modified by the customer to move the engine jacket water temperature control off engine. In this case there would be no jacket water bypass line installed on engine.Note: (Location 3) vent (3) and (Location 4) vent (4) must vent at all local high points in the lines. See the two examples above. The jacket water outlet line can be left hand or right hand configured.
Illustration 4 g06260680
Left figure is, G3500 SCAC vent location example on customer installed lines for an engine with customer supplied pumps.
Right figure is, G3500 SCAC vent location example on customer installed lines for an engine with pumps.
Note: The U-shape is shown only as an example of a local high point.
(5) (Location 5) Customer installed SCAC line vent connection.Note: (Location 5) vent (5) must vent at all local high points in the line. See the two examples above.Note: Best practice is to design jacket water and SCAC lines in such a way to eliminate or minimize the number of local high points.
Illustration 5