Easy tips

How to replace a MkIV ALH diesel injection pump?

How to replace a MkIV ALH diesel injection pump?

Engage the parking brake and put the transmission in neutral. Using the Universal Sprocket Buster™ Counter hold Tool, rotate the camshaft sprocket clockwise until the Nr. 1 cylinder cam lobes are pointing upward and the groove in the end of the camshaft is horizontal. Do NOT turn the cam sprocket counter-clockwise.

Can a Bosch VP44 fuel injection pump be removed?

WARNING: Whenever the Bosch VP44 fuel injection pump is removed from the engine, the pump drive gear is laying loose on the camshaft drive gear. Never attempt to crank or rotate the engine with the pump removed from the engine. Serious damage will occur.

Can a 10 mm pump be replaced on an ALH?

This “How-To” can be applied to the exchange or replacement of either the 10‑mm or 11‑mm injection pump on an ALH engine, though the instructions will be slanted toward a manual transmission TDI. There are a few small differences for the automatic transmission, and the Bentley manual should be consulted.

How to replace a diesel injection pump in a Jetta?

2003 Jetta GLS TDI 5-speed Please note that Posts 1 – 8 of this thread are copyrighted via a Creative Commons 3.0 BY-NC-SA license. Engage the parking brake and place the front of your car on jack stands. If anything, this will save your back from aching. Remove any installed skid plate or belly pan.

How to remove an injection pump from a Bosch VP44?

Use T-bar type puller (Fig. 28) to separate injection pump gear from Bosch VP44 injection pump shaft. Attach two M8 X 1.24 MM (metric) screws through puller and into two threaded holes supplied in pump gear. Pull injection pump gear forward until it loosens from injection pump shaft.

Engage the parking brake and put the transmission in neutral. Using the Universal Sprocket Buster™ Counter hold Tool, rotate the camshaft sprocket clockwise until the Nr. 1 cylinder cam lobes are pointing upward and the groove in the end of the camshaft is horizontal. Do NOT turn the cam sprocket counter-clockwise.

How does fuel get out of the injection pump?

The fuel is dispersed from the injection pump to the combustion chamber via a fairly simple process. Pressurized fuel enters the fuel injector. Based on a signal from an electrically controlled solenoid valve – the solenoid valve acts as a type of on / off valve – the fuel enters a plunger, which prepares the fuel for the final exit.

This “How-To” can be applied to the exchange or replacement of either the 10‑mm or 11‑mm injection pump on an ALH engine, though the instructions will be slanted toward a manual transmission TDI. There are a few small differences for the automatic transmission, and the Bentley manual should be consulted.

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Ruth Doyle