New Injectors Install

[Hawkez]

I changed the injectors yesterday, it was my first time doing that.  For the most part everything went well, usless you count me dropping a screw driver twice    in between the intercoooler and radiator.  While I was in there I adjusted the valve lash and that went pretty well.  I took a picture of my cross over tubes, as this is the first time pulling them, I didn't know if this was normal.  The o rings were all still in place but  you can see how they had deformed and created a mess above their groove.  Everyone of them were like this.  The o rings themselves were all still in tact but in pretty bad shape, not sure how much longer they would have gone before I would have seen problems.  I carefully cleaned them up and installed new orings.

 

 

After everything was hooked back up and began to bleed and prime the fuel system.  I cracked my fuel line, and got nothing.  I loosened the banjo on the return line at the IP and I got fuel pushing from there.  I cranked on and off for a good ten minutes and never got anything fuel at the head.  My batteries finally died so I will give it a second go this morning.  I can't see fuel leaking out of any of the connections behind the VP44, I feel those connections are good.

 

Will it usually take this long to prime after an injector change?

 

I do appreciate the wealth of knowledge on this site.  I had my wife iPad on my work bench and I was swapping between articles.

[CTcummins24V]

Yes, I ran my batteries dead the last time I swapped injectors. Do you still have the carter pump for priming? Crack a couple of the injection lines at the head. 

[Hawkez]

I still have the carter pump and it runs after I bump the starter.  I cracked the lines at the head.  I give it another go as soon as the sun comes up.  Thanks

[Wild and Free]

Those tubes look like new.

[dripley]

I highly recommend you replace the carter pump. it is just a matter of time before it takes your VP with it. It it is weak it wont help your priming of the system. It would be good  at the least to get a pressure gauge  and check the pressure on the lift pump. Weak pressure from the oe lift pump or any pump for that matter is a VP killer. .

[Hawkez]

The carter pump is still installed but I have a Fuel Boss that is my lift pump.  The Carter is only used to prime the system.

[Hawkez]

I went out this morning and still can't get it to start.  I have cracked the fuel lines and I still don't see any fuel coming from them while I am cranking.  Any ideas?

[Hawkez]

When you crack the fuel lines at the head, how far to you open them?  Is this just a quarter turn? or more than that?

[Wild and Free]

I usually back them off a full turn at least and only do 3 at a time.

[dripley]

The carter pump is still installed but I have a Fuel Boss that is my lift pump.  The Carter is only used to prime the system.

I should have read your sig a little better. 

[Hawkez]

Thanks Wild&Free.  I was only opening them a quarter turn or so.  I went out and opened them up a full turn and it started withing 30 seconds or so.  It seems to be running smooth and no leaks....that I can see.  Now to let it sit and hope that it will hold prime.

Edited September 23, 2015 by Hawkez