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I ran acroos this post that pretty much describes a problem I've been having for some time now.

 

First post that clearly explains why miss in idle when warm and why ac on it goes away. Any rpm above idle runs fine.

 

One other question. When this happens is ac off idle is missing or ruff, if I turn the engine off then re-start ruff idle miss is gone why??????

 

From all the reading I've done on injectors seems the one's called rv275 seem very popular and majorty say they work very good.

 

Anyone have any other thoughts comments on replacment injectors?

 

Is it good idea to replace the connect tubes or just a new O ring k?

 

Thanks in advance

 

 

 

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  • Mopar1973Man
    Mopar1973Man

    Injectors are wore out. As you add more load the VP44 increases pressure slightly to the injectors and the pop off spray is better. Where with everything off the injector start to miss because the noz

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:iagree: Cant add anything to that.

Edited by dripley

  • Owner

Be careful. Like @JAG1 called me today because he's got an injector line that is bleeding fuel some. He was doing the same thing and was smart and stopped tightening the line more and called me. You have to be careful and check the line to socket for debris and be sure the line is fitting good and the taper is sealing good. All it takes is a small grain or sand, rust, corrosion, or metal sliver to keep it from sealing and just cranking down hard it going to crush that debris into mating faces.

  • Staff

Yes, I used 600 grit emery cloth on the high pressure line tip. Placing paper covers over the three disconnected injectors to keep debri out, I  lightly squeezed the paper to the tapered bottom portion and go around. Don't go up and down, go around with the circle on the tip. Then with a flash lite and mirror, check to see if it nice brite and no defects. I did find a very small defect, about 1/4th the size of a pin head (very small) I used the emery again till it was gone and thanks to Michael Nelsons advice, it doesn't leak now.

 

 It's key that you don't keep tightening those H/P lines if you have a stubborn leak you can ruin them. Snug not wrenched is how I can best describe it. My leak was stubborn and I knew not to force it so I refinished the surface is all.

 

I learned about the emery cloth on this forum. Been here for years and still learning from you guys. Thank you all.

Edited by JAG1

  • Author

Mine stopped leaking after the last round of tighten, but each time only tighten a bit more. If it continued to leak weep then i would have, checked mating surfaces. But so far it's sealed.

 

again thank to all the awesome help from this site.