Data on Bosch VP 44 Diesel Pumps for Diesel Trucks

出典: くみこみックス

If you are hunting for a new injection pump for your Dodge Cummins diesel engine, but are not positive which is the greatest model, than please continue studying. In this post we clarify some widespread failures with injection pumps. The Cummins diesel engine manufactured by Dodge amongst 1998 and 2002 came equipped with a Bosch VP44 injection pump. Regrettably these injection pumps have been know to have their fair share of problems and could require to be replaced.

Bosch VP44 injection pumps carry out 4 basic functions:

1. Distributing the high-pressure, metered fuel to every single cylinder at the precise time

two. Metering the exact amount of fuel for each injection cycle

3. Varying the timing relative to engine speed.

4. Generating the high fuel pressure required for injection

The Bosch VP44 is an electronic rotary distributor pump that can differ fuelling and injection timing, and also includes fuelling, timing, and diagnostic information.

The number one lead to of Bosch VP44 injection pump failure is a drop in fuel line pressure, which is generally due to a malfunctioning lift pump. Normal fuel pressure is about 15psi and if the pressure drops beneath 5psi an injection pump failure is probable. Bear in mind negative lift pumps can run unnoticed till expensive damage is accomplished to the Bosch VP44 injection pump.

The following are the prime two most widespread mechanical failures:

1. Examine Engine Code 216

This is the most frequent mechanical failure and occurs over a period of time when weak lift pumps, with low fuel pressure rupture the diaphragm in the front of the injection pump. The timing piston will then vibrate to a point where it wears the housing of the pump down until the fuel is able to bypass the piston. Dodge has recognized this issue for some time, and they no longer even sell the lift pump that goes on powered by the side of the block anymore, as an alternative they replace it with a unit that is now mounted in the tank.

two. Rotor Seizure

One more mechanical failure with the Bosch VP44 injection pump happens when the rotor seizes in the distributor section of the pump. The most frequent cause for the seizure is a lack of lubrication. Because the fuel lubricates the Bosch VP44 injection pumps, weak lifts pumps jump button can again be blamed for this failure. The seizure will then break the Drive Plate and the truck will cease operating, in no way to commence yet again, until the Bosch VP44 injection pump is replaced.

Preventing Bosch VP44 injection pump Failure

The best way to keep away from failures of the Bosch VP44 injection pump is to prevent them from happening. Getting a replacement lift pump, 1 that is of a greater quality than what comes from the factory will support. If that alternative is too costly, you can also set up a gauge to monitor your fuel pressure. With the gauge you will be in a position to know when your lift pump is going look into alkaline diets out and can easily repair the dilemma prior to you shed the Bosch VP44 injection pump.

Stopping difficulties ahead of they take place is the finest way to take care of your truck.