8M0041101 DAMPER, Fuel Rail Mercury
1200V13ED, 1200V13ER, 1200V23ED, 1200V23ER, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250V23EF, 1250V34EB, 1251V13ED, 1275V23ER, 1275V24EB, 1275V34EB, 1300V23EB, 1300V24EF, 1300V24KD, 1300V33EB, 1301V23KD, 1301V33KD
DAMPER
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Compatible models:
Mercury entire parts catalog list:
1200V13ER 2006,2007,2011
1200V23ED 2006,2007,2011
1200V23ER 2006,2007,2011
1225V13EB 2007,2011
1225V13EF 2007
1225V23ED 2007
1225V33EB 2007,2011
1250V23EF 2007
1250V34EB 2007
1251V13ED 2010,2011
1275V23ER 2006,2007,2011
1275V24EB 2007
1275V34EB 2007
1300V23EB 2007
1300V24EF 2007
1300V24KD 2011
1300V33EB 2007
1301V23KD 2011
1301V33KD 2011
Information:
High Fuel Pressure
Excessive fuel pressure can cause fuel filter gaskets to rupture. The following conditions can cause high fuel pressure:
Plugged orifices in the fuel pressure regulating valve
Stuck fuel pressure regulating valve in the fuel transfer pump
Pinched fuel return lineChecking Fuel Pressure
Illustration 1 g00293196
1U-5470 Engine Pressure Group
Refer to Special Instruction, SEHS8907, "Using The 1U-5470 Engine Pressure Group".
Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. Clean up fuel spills immediately.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Use the following procedure to measure the fuel pressure after the secondary filter:Note: Fuel pressure readings near the fuel supply manifold have pressure spikes. The pressure spikes are caused by excess fuel that is returning to the fuel system from the injectors. Excessive needle movement at the gauge may be present. Connect the gauge with a section of suitable hose. The air in the hose absorbs the spikes. This gives an average reading and a steady needle. Keep the gauge above the measuring point.
Illustration 2 g01130021
(1) Plug Install the 1U-5470 Engine Pressure Group into port (1).During both normal operating conditions and load conditions, the fuel pressure should register the following range:
455 to 579 kPa (66 to 84 psi)At low idle, the fuel pressure at the fuel filter's inlet should be at the following amount:
400 to 434 kPa (58 to 63 psi)The fuel pressure to the fuel gallery should be the same amount, if you subtract the change in pressure (delta P) across the filter. With a new filter, the pressure drop across the fuel filter typically registers the following amount:
35 kPa (5 psi)As deposits collect on a fuel filter, the pressure differential will increase. Engine misfire may occur if the fuel pressure in the fuel gallery decreases to approximately 69 kPa (10 psi).The fuel pressure regulator valve is mounted at the fuel return port at the rear of the fuel gallery in the cylinder head. The fuel pressure regulating valve maintains fuel pressure at low engine rpm. The regulating valve also contains a check valve that is spring loaded. The check valve that is spring loaded prevents the fuel from draining from the fuel gallery back to the fuel tank after engine shutdown.Unit Injector Hydraulic Pump (Test)
Injection Actuation Pressure (Test)
The test for injection actuation pressure is used in order to check for the following conditions:
The unit injector hydraulic pump is producing maximum pressure.
The pump pressure regulator is working properly.
The unit injector hydraulic pump is worn.
System leaksThe electronic service tool is used to perform this test.Dead Head Test for the Unit Injector Hydraulic Pump
The unit injector hydraulic pump dead head test is used to verify that the following conditions exist:
The injection actuation pressure circuit is working.
The unit injector hydraulic pump is working properly.See the Troubleshooting Manual for additional information on performing the troubleshooting tests for the Injection Actuation System and the dead head test for the Unit Injector Hydraulic Pump.
Excessive fuel pressure can cause fuel filter gaskets to rupture. The following conditions can cause high fuel pressure:
Plugged orifices in the fuel pressure regulating valve
Stuck fuel pressure regulating valve in the fuel transfer pump
Pinched fuel return lineChecking Fuel Pressure
Illustration 1 g00293196
1U-5470 Engine Pressure Group
Refer to Special Instruction, SEHS8907, "Using The 1U-5470 Engine Pressure Group".
Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. Clean up fuel spills immediately.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Use the following procedure to measure the fuel pressure after the secondary filter:Note: Fuel pressure readings near the fuel supply manifold have pressure spikes. The pressure spikes are caused by excess fuel that is returning to the fuel system from the injectors. Excessive needle movement at the gauge may be present. Connect the gauge with a section of suitable hose. The air in the hose absorbs the spikes. This gives an average reading and a steady needle. Keep the gauge above the measuring point.
Illustration 2 g01130021
(1) Plug Install the 1U-5470 Engine Pressure Group into port (1).During both normal operating conditions and load conditions, the fuel pressure should register the following range:
455 to 579 kPa (66 to 84 psi)At low idle, the fuel pressure at the fuel filter's inlet should be at the following amount:
400 to 434 kPa (58 to 63 psi)The fuel pressure to the fuel gallery should be the same amount, if you subtract the change in pressure (delta P) across the filter. With a new filter, the pressure drop across the fuel filter typically registers the following amount:
35 kPa (5 psi)As deposits collect on a fuel filter, the pressure differential will increase. Engine misfire may occur if the fuel pressure in the fuel gallery decreases to approximately 69 kPa (10 psi).The fuel pressure regulator valve is mounted at the fuel return port at the rear of the fuel gallery in the cylinder head. The fuel pressure regulating valve maintains fuel pressure at low engine rpm. The regulating valve also contains a check valve that is spring loaded. The check valve that is spring loaded prevents the fuel from draining from the fuel gallery back to the fuel tank after engine shutdown.Unit Injector Hydraulic Pump (Test)
Injection Actuation Pressure (Test)
The test for injection actuation pressure is used in order to check for the following conditions:
The unit injector hydraulic pump is producing maximum pressure.
The pump pressure regulator is working properly.
The unit injector hydraulic pump is worn.
System leaksThe electronic service tool is used to perform this test.Dead Head Test for the Unit Injector Hydraulic Pump
The unit injector hydraulic pump dead head test is used to verify that the following conditions exist:
The injection actuation pressure circuit is working.
The unit injector hydraulic pump is working properly.See the Troubleshooting Manual for additional information on performing the troubleshooting tests for the Injection Actuation System and the dead head test for the Unit Injector Hydraulic Pump.
Parts damper Mercury:
895025
895025 DAMPER
1135V13ED, 1135V13FB, 1135V13HB, 1200V13DD, 1200V13ED, 1200V13ER, 1200V13FB, 1200V13HB, 1200V23ED, 1200V23ER, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250V23EF, 1250V34EB, 1251V13ED, 1275V23ER, 1275V24EB, 1275V34EB, 1300V23EB, 1300V24EF, 1300V24K
893392001
893392001 DAMPER
1135V13ED, 1135V13FB, 1135V13HB, 1200V13DD, 1200V13ED, 1200V13ER, 1200V13FB, 1200V13HB, 1200V23ED, 1200V23ER, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250V23EF, 1250V34EB, 1251V13ED, 1275V23ER, 1275V24EB, 1275V34EB, 1300V23EB, 1300V24EF, 1300V24K