REPLACEMENT OF THE FUEL RATIO CONTROL DIAPHRAGM Caterpillar


`
REPLACEMENT OF THE FUEL RATIO CONTROL DIAPHRAGM [TIBU3690]
FUEL SYSTEM
PUMP GP-FUEL INJECTION
REPLACEMENT OF THE FUEL RATIO CONTROL DIAPHRAGM

CONFIDENTIAL TIBU3690-00

TECHNICAL INFORMATION BULLETIN

SEPTEMBER 11, 2002

ENGINES,

INTEGRATED TOOL CARRIERS,

WHEEL LOADERS,

EXCAVATORS,

COMPACTORS

3054 (5YS), 3054B (5MF), 3056 (7MS) INDUSTRIAL ENGINES;

IT14G (8ZM, 1WN) INTEGRATED TOOL CARRIERS;

914G (7ZM, 9WM), 924G (AAB, AAN, 6YW, 9SW, 3DZ, 3PZ) WHEEL LOADERS;

M312 (6TL), M315 (7ML), 315 (3ZM), 315B (5SW), 317 (4MM, 9SR) EXCAVATORS;

CP-323C (6DM), CS-323C (1EN), CB-434C (4DN, 4MW), CP-663E ( AFL), CS-663E (AEF), CS-683E (AGR), PS-150B (3XR) COMPACTORS

 

Component Code 1251

SUBJECT: REPLACEMENT OF THE AIR/FUEL RATIO CONTROL DIAPHRAGM ON
ENGINE FUEL INJECTION PUMP

PROBLEM:

The 165-3812 Air/Fuel Ratio Control Diaphragm is no longer available from AVSpare as a serviceable component of the fuel injection pumps on the above engines and machines.

SOLUTION:

Repair or replacement of the air/fuel ratio control diaphragm (165-3812) on Delphiâ fuel injection pumps (formerly Lucasâ fuel injection pumps) must be carried out by an authorized or registered Delphiâ dealer. Replacement of this part requires checking fuel pump settings following repair. This check must be made on a calibrated fuel pump test bench in order to verify that pump settings fall within the specifications in order to maintain compliance with EPA emissions standards. Such work may only be carried out by an authorized Delphiâ injection pump service dealer. The illustration shows the location of the air/fuel ratio control diaphragm on a fuel injection pump.

 


Location of the Air/Fuel Ratio Control Diaphragm (1) on a typical Fuel Injection Pump

 


COPYRIGHT 2002 AVSpare
ALL RIGHTS RESERVED

Information System:

Updated Predelivery/Revisit Checklists Are Now Used
REMANUFACTURED ENGINES WITH FLOATING CORE AFTERCOOLER
Caterpillar is releasing replacement software for PCS version 2.07A and 2.07AR software (Cat p/n 213-8794 and 213-8799 respectively)
Cracks have been found in the radome of the 167-8930 GPS Antenna and the 194-8015 GPS Antenna
POSSIBLE AIR LEAKS AIR LINES GROUPS AT THE ELBOWS
OVERHEATING OF THE TRANSMISSION
Incorrect Speed Sensor Wiring Causes Fill Calibration to Abort
INTERFERENCE BETWEEN BUCKET LINKAGE AND QUICK COUPLER LIMITS BUCKET ROTATION FOR CERTAIN BACKHOE WORK TOOLS
Product Link Modules Are Not Reporting Events or Fuel Consumption
THE MACHINE MAY SHUT DOWN UNEXPECTEDLY
THE PARKING BRAKE GROUP MAY BECOME LOOSE
ENGINE ECM, TRANSMISSION CONTROL AND FLASH FILES
THE SEAL THAT IS LOCATED ON THE ECCENTRIC WEIGHT SHAFT IS LEAKING
The Shuttle Valve May Be Missing From Some 194-0436 Pump Groups
8F-3469 O-Ring Seal Failures May Be Caused by a Transmission Clutch Shaft That Is Too Short
THE STEERING WARNING LAMP REMAINS ON
EXCESSIVE WEAR IN THE 3524 ENGINES IN 797 OFF-HIGHWAY TRUCKS
Bypass Schedule May Be Affected when Machine Security System (MSS) Automatically Adjusts to North American Daylight Savings Time
Check Valve may be Incorrectly Installed in the Cooling Fan Oil Return to Tank Line
THE NEW 212-6590 IDLER WHEELS MAY MAKE CONTACT WITH THE UNDERCARRIAGE SCRAPERS
REPORT ALL PROBLEMS OF INTERFERNECE THAT MAY BE EXPERIENCED BETWEEN THE NEW HYDRAULIC QUICK COUPLERS AND WORK TOOLS
QUICK COUPLER ASSEMBLY ON SOME SSL'S & MTL'S MAY BE TOO WIDE
Fleet/Key Configuration Issue Using Cat ET Version 2002B
TRANSMISSION PRESSURE CONTROL VALVE MANIFOLD