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vp44 and hy35 questions

Frankstein
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Frankstein

Frankstein

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Hi guys,  I want to know if I can tap the hole in the hy35 housing where the metal hose goes for the wastegate.   I want to put the elbow that come with the edge jwa for increase boost?? Does it work or I'm better with a j-hook to increase boost??  

 

Second question.  For my 2001 24v automatic, does this vp44 pump #BOSH 0470506005 ---- #CUMMINS 3676670  fit directly on my truck or I need to get another key for the shaft??   If its bolt-on right with no problems??   I found one near.  guys want 500$ new and said its for 1998-1999.  It's a close enterprise ...  

 

Thank you  

 

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Mopar1973Man

Mopar1973Man

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Better off upgrading to a HX35W turbo then using the boost elbow on the HX35W turbo. Your Upgrading from 9cm2 to 12cm2 exhaust housing and better EGT control.

 

As for the VP44 I have a hard time buying a VP44 for less than $1000.00 typically there is some sort of hidden issue like warranties, it wasn't rebuilt at all, maybe rebuilt but never calibrated and re-used a old PSG unit. As for the part number I'm not sure at all.

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TFaoro

TFaoro

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As for the VP44 I have a hard time buying a VP44 for less than $1000.00 typically there is some sort of hidden issue like warranties, it wasn't rebuilt at all, maybe rebuilt but never calibrated and re-used a old PSG unit. As for the part number I'm not sure at all.

Sounds to me like it's a used VP....Frankstein am I right? If it is used and he will let you get the truck running before buying I would buy it... Trying to get a little bit off that price though!

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RubberDuck01

RubberDuck01

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I'm glad you posted this. I don't mean to high hack your thread but I just bought a used pump for $300+some spare parts I wasn't using. I was attempting my first VP swap today and I got the my VP out but when I went to put the new one in I noticed the key ways are different depths. The key doesn't even come close to going all the way in the key way. Would it be a huge no no to have someone cut the key way deeper? I'm afraid that even with a different key the key way isn't deep enough. I'm in a hard spot because the truck is my dd and I have to get it running tomorrow because I have to go back to work Friday.

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TFaoro

TFaoro

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Sounds like it's just half way out. Try using a brass hammer to gently tap it into the VP shaft.

If the previous owner just stuck the wrong key in it you should use the one from the pump you removed. Don't retrofit the key way. It could throw the timing off

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Frankstein

Frankstein

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I just see the VP44 in a add, I think it's new!!  not sure if rebuild or calibrated.  But it's a diesel shop near my house . closed business and they liquidated his stuff.  it's 500$ CAD  ,  I live in Quebec ...     I want to know if it's a good deal or I take big chance..  for now my VP run good  its just for safety and economy for futur!!      And want to know like rubberduck01 said  if the keyway is all the same 98-02 and fit direct bolt on without modification for all this year..  if its interchangeable! 

 

Thanks guys  and sorry for my english  not so good!!!!

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Mopar1973Man

Mopar1973Man

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Keyway are all interchangeable.

 

But do the VP44 have the right key in the shaft? It should be stamped with a number on the body of the pump and the number on the key should match.

http://articles.mopar1973man.com/2nd-generation-24v-dodge-cummins/25-fuel-system/314-bosch-vp44-injection-pump-key-part-numbers

 

keyway-fig33.jpg

 

pump-data-fig35.jpg

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TFaoro

TFaoro

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Do what about making the key way deeper in the pump I just bought???

If it's the correct keyway, tap it in with a brass hammer.

If it's the incorrect keyway you are going to have to remove the keyway from the old pump and install it into the new one

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Mopar1973Man

Mopar1973Man

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If it's the correct keyway, tap it in with a brass hammer.

If it's the incorrect keyway you are going to have to remove the keyway from the old pump and install it into the new one

 

Whoa! You can't mix keys. The key that is calibrated to the pump has to stay with the pump. Now using the number stamped on the body you could order a another matching key. But I can't see the key being taller. :think:

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TFaoro

TFaoro

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Whoa! You can't mix keys. The key that is calibrated to the pump has to stay with the pump. Now using the number stamped on the body you could order a another matching key. But I can't see the key being taller. :think:

Mike, the change is so small you can interchange them without throwing the timing off. It has been done successfully many times.

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rburks

rburks

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Im referring to your question about the VP Pump

 

It most likely will be ok, But now any issues that pop up, this will always be hanging out there and will be the first place you look for the cause/.....just say'n :2cents:

rburks

 

***I also suggest to make a note of this and remember to include with any future post regarding issues with motor, might even want to print it on a piece of tape and put somewhere under hood or in door seal 

Edited by rburks
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