Bosch VP44 injection pump removal the fast way!

[Mopar1973Man]

Here you go gang... How to remove the VP44 the quick and easy way. Takes approximately 45 minutes for me to do this much.

 

Remove the Mopar1973Man Crankcase vent (if applicable)

 

Using a 10mm socket remove the air horn bolts and dipstick bolt.

 

Using a 7/16 or 11mm loosen the top clamp of the boost boot.

 

Move everything out of your way.

 

Pack a shop rag in the intake to prevent stuff from falling in.

 

Using a 13mm socket loosen the 3 bolts holding the APPS sensor and unplug and move.

 

Now unplug the VP44 main connector and wire tap . This connector is a two step plug lock. Pull the release tab and wiggle the plug out then pull a bit more on the release and the plug should release fully.

 

Now using a 10mm loosen the 3 bolts holding the 1,2,4 injection rail in place. Using a 3/4" wrench loosen 1,2,4 injection lines.

 

 

Now remove 1,2,4 injection lines as a group.

 

Using a 3/4" wrench remove the overflow valve banjo and remove your supply line (may differ from mine being a big line kit)

 

Now remove the crankcase vent. Just unscrews normal right hand threads. Do not pry on the nipple. 

 

Now remove the pump shaft nut with a 1 1/16 inch socket. 

 

 

Using a 23mm socket roll the alternator towards the coolant bottle to bring the keyway on the pump gear to TDC position and then install your gear puller and pull the gear loose on the shaft. 

 

Now loosen the 3,5,6 lines but you do not have to remove. 

 

Now you want to loosen the 2 bolts on the rear bracket with a 13mm socket. 

 

Now remove the 4 nuts holding the pump to the gear case. 

 

Now careful kick the 3,5,6 lines out there nipples towards the block.

 

Now lightly pry the pump away from the case and remove. Check for the key in the shaft make sure its present.

 

This is what you should have after removal...

Edited April 14, 2017 by Mopar1973Man

[Hawkez]

Pictures are always a PLUS.  What did you decide to do about the wire tap on your new VP44?  If I remember correctly, DAP sold a pump that allowed for a tap and a 1 year warranty, but it was a little more money.

[Mopar1973Man]

Standard 1 year warranty. No wire tap warranty. I'm going to risk it being the budget won't allow it. So run hard one month and then tap it afterward.  

[Dieselfuture]

How often do you even use wire tap now with v2 stuff, I personally realy have no need for it anymore, maybe just to screw around.  Especially if you're going for mpg. With your bigger injectors and hybrid you may not need to tap it at all. 

[Mopar1973Man]

I just got done pulling the stealth cover off the old pump and replaced the cover. I'll most likely tap the wire again. The power is a bit addicting. 

[Dieselfuture]

You said it, the power bug...

[trreed]

We all knew he's had it....  Now he admits it!

[Dieselfuture]

You said it, the power bug...

Can't go back now denying it, it's on the record

[Mopar1973Man]

19 minutes ago, Dieselfuture said:

You said it, the power bug...

 

It true I do have a power bug. BUT! I do know my limitations and how far I can go. I'm not going to do like @TFaoro or @jlbayes that is way beyond my needs or wants.

 

18 minutes ago, trreed said:

We all knew he's had it....  Now he admits it!

 

I've always had it. I'm not going to deny that but my requirements are MUCH less than most. Actually, the MPG is the priority over the HP and TQ numbers.

 

15 minutes ago, Dieselfuture said:

You said it, the power bug...

Can't go back now denying it, it's on the record

 

 

 

Nope. Not going to deny or go back. 

I love the feeling of grabbing a gear and the tires just ripping loose under the truck. Also fun to blast those puppies in Boise that think they got something and you eat them alive from light to light. 

Edited April 14, 2017 by Mopar1973Man

[Mopar1973Man]

I can see my VP44 getting closer and closer to me. Monday I should have my new pump in hand.

[trreed]

At least you can see yours!  I haven't heard anything back about mine that was sent for warranty...  Sure hope it's on its way back.

[CumminsTech]

Nicely done write up! ?

[crf450ish]

Looks good. Like how you always have a way of streamlining moderately difficult tasks on these trucks. 

[jlbayes]

In all fairness I do not recommend the path I took with my truck to anyone LOL

[Mopar1973Man]

New Pump is installed. More to post later on...

[SilverMoose]

 

Waiting impatiently.  

 

I hope she fires right for you.

 

L8tr

D

[Mopar1973Man]

After a week of sleeping in the garage the lazy Cummins didn't want to wake up. I ran the batteries dead attempting to get it to fire up. After fighting for a good 15-20 minutes I finally got it to light off. Now it does run I'm not seeing the wild lope I had before nor am I getting that wild aggressive timing any longer. I've only made a few short trips here locally which was getting a tank of fuel and taking out the trash. So I'll see what happens after a long haul. 

[dripley]

Good to hear my friend. Hope all stays well with her.

[Dieselfuture]

Hopefully you get better mpg's and start playing with some tunes. They say when vp's wear out mpg drops.  My last tank playing with different tunes got me 15.4 hopefully just heavy foot...

[CumminsTech]

Excellent to hear she is up and running again! Always a good feeling hearing it fire up after going under the wrench. I always love the rush/pucker factor lighting up a fresh engine after a rebuild and all is successful it's the same I guess when doing a pump just not as stressful lol. The ears go on high alert picking up the smallest of strange noises, brain even makes up a few sometimes?