Data on Bosch VP 44 Diesel Pumps for Diesel Trucks

出典: くみこみックス

2012年8月17日 (金) 12:34の版

If you are hunting for a new injection pump for your Dodge Cummins diesel engine, but are not certain which is the finest model, than my jupiter melody please continue reading. In this report we explain 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 troubles and may possibly need to have to be replaced.

Bosch VP44 injection pumps execute 4 basic functions:

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

two. Metering the precise amount of fuel for each and every injection cycle

three. Varying the timing relative to engine speed.

four. Making the high fuel pressure needed for injection

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

The number one particular 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 around 15psi and if the pressure drops beneath 5psi an injection pump failure is probable. Don't forget undesirable lift pumps can run unnoticed until costly harm is accomplished to the Bosch VP44 injection pump.

The following are the leading two most widespread mechanical failures:

1. Examine Engine Code 216

This is the most common mechanical failure and occurs more than 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 exactly where it wears the housing of the pump down till the fuel is in a position to bypass the piston. Dodge has recognized this problem for some time, and they no longer even sell the lift pump go there that goes on the side of the block anymore, rather they replace it with a unit that is now mounted in the tank.

2. Rotor Seizure

Another mechanical failure with the Bosch VP44 injection pump takes place when the rotor seizes in the distributor section of the pump. The most widespread result in for the seizure is a lack of lubrication. Given that the fuel lubricates the Bosch VP44 injection pumps, weak lifts pumps can once more be blamed for this failure. The seizure will then break the Drive Plate and the truck will stop operating, never ever to start once more, until the Bosch VP44 injection pump is replaced.

Stopping Bosch VP44 injection pump Failure

The finest way to steer clear of failures of the Bosch VP44 injection pump is to stop them from occurring. Purchasing a replacement lift pump, 1 that is of a much better good quality than what comes from the factory will assist. If that alternative is as well pricey, you can also install a gauge to monitor your fuel ionways pressure. With the gauge you will be capable to know when your lift pump is going out and can effortlessly fix the difficulty before you shed the Bosch VP44 injection pump.

Preventing difficulties before they take place is the very best way to take care of your truck.