Buy 154101-1020 ZEXEL 9 421 612 921 BOSCH FLYWEIGHT ASSEMBLY 9421612921 1541011020 1157220240

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Injector male spade terminals
There are two options to build injector adapter harness for C3.3.If available, use the injector connector removed from C3.3 harness. Cut both 100 mm wires from the connector and attach bullet terminals that fit in the injector adapter harness C3.8 terminal from injector test kit.If no harness is available, build a harness with the following. Two female spade terminals for injector male spade terminal, two 16 gauge 100 mm wires, and two bullet terminals for injector adapter harness C3.8 terminal.
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Injector adapter harness C2.4
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Injector adapter harness C3.8
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Injector male spade terminals
There are two options to build injector adapter harness for C2.4.If available, use the injector connector removed from C2.4 harness. Cut both 100 mm wires from the connector and attach bullet terminals that fit in the injector adapter harness C3.8 terminal from injector test kit.If no harness is available, build a harness with the following. Two female spade terminals for injector male spade terminal, two 16 gauge 100 mm wires, and two bullet terminals for injector adapter harness C3.8 terminal.Injector Test Set-up
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Mounted nozzle test group
Find a suitable stable and surface to either mount or place the nozzle test group. Fill fuel container with #1 diesel and install high-pressure hose assembly. Use adaptors, if needed, based on nozzle tester. Tighten the fuel line adapter to (25 ft lbs). Install the fuel line adapter and tighten to (25 ft lbs) to allow connection to the injector.
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Injector holder assembly
Take the injector test kit and remove all parts to assemble, as shown above. Take the injector holder and the clear fuel shield with screws from the kit and remove the screws using a 3mm alan wrench. Assemble the parts so the clear fuel shield with screws is on the bottom. While, the mounted injector holder is on top with the screws removed from before.
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Fuel collector and injector holder
Place injector holder onto a fuel collector or another container to capture the injection spray.
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Injector setup and harness connection
Install the injector that is needing to be tested into the opening at the top of injector holder. Attach the return fuel drain hose and run the drain hose to another fuel collector. Make the harness connection using the correct adapter for the C2.4, C3.3, and C3.8 engines. Connect the injector pulse tool and the injector adapter harness to the injector.
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Complete setup of nozzle tester and injector test kit
Once injector test kit and nozzle test group are set up, connect fuel line adaptor on the high-pressure hose assembly to the injector, leave connection loose. Actuate the lever on the nozzle test group until fuel drips from connection allowing air to purge from setup. Tighten fuel line adaptor at injector to (25 ft lbs).Injector Test Procedure
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Mounted nozzle test group (close-up)
Inspect the injector for any leaks. Using the lever on the nozzle tester group, build injection fuel pressure to (5000 psi). Turn the locking valve to insure there is no leakage back through the tester.
Let the nozzle test