Injector disassembly question

[Dhallftworth]

I searched first, but could not find my answer. I'm having fuel problems on my truck. I'm getting fuel to the injectors, but the motor won't start. Who ever had this truck before me, failed to put filters into the secondary and final cans. I pulled out my injectors, which were pretty nasty and possibly clogged. I disassembled them and dropped just the nozzles and related parts into my sonic cleaner with high strength degreaser. I have 2 nozzles, where the center "shaft" won't come out. I can blow air through one of them, but not the other.

 

[Jeepsinker]

Have you tried soaking them in penetrating oil? And I mean in a penetrating oil bath. Get a gallon of PB blaster from the parts store and fill up a cup with it then drop all the tips in. The ones that aren't stuck will benefit anyway because it will loosen all the carbon/coke that the sonic tank won't get.

 

[Jeepsinker]

And if you really want it clean, fill the sonic tank with penetrating oil and run it that way.

 

[Dhallftworth]

Do you think it would hurt the penetrating oil, if I heated it up to 140° in the sonic cleaner? It may not be necessary though.

 

[Jeepsinker]

No, it won't hurt it. It may evaporate some, just check on it sometimes. You must have the Hornady Hot Tub. That is the same tank I have.

 

[Dhallftworth]

I don't have the hot tub, I've got the Hornady tall silver unit. I forget what it's called. I'm a reloader, and decided that the thumblers tumbler works much better than sonic cleaning brass. It's went on to bigger and better things. I'll see about getting a gallon today, to try tonight.

 

[welldigger]

So how are you going to set the pop pressure?

 

[Dhallftworth]

I'm not sure, do you know how? I'll more than likely go strictly by the manual.

 

[welldigger]

I'd just take them to an injector shop and have them tested and set. Shouldn't cost much.

 

[Dhallftworth]

If I didn't disassemble the Allen screw, I shouldn't have to set the pop pressure should I?

 

[welldigger]

I'm not sure. I know my local shop charges about $45 to rebuild an injector. There have been some threads where people built their own homemade pressure tester. I have a used injector line I can send you if you decide to go that route. I want to say they used a Porta power. And used the end of an old injector line to adapt it to an injector.

 

[Dhallftworth]

I've got mine all torn apart, and don't see any o-rings or seals. I'm not sure what there is to rebuild on them.

 

[Jeepsinker]

Springs, tips,... Cleaning, and setting pressures... I think. I need to have mine done soon too. I have almost 2000 hours on mine. Service intervals are 1000 hours I believe.

 

[gimpyrobb]

Here is the thread I was telling you about:
http://www.steelsoldiers.com/showth...ompression-testing&highlight=Injector+rebuild

 

[rustystud]

View attachment Scan0010.pdfView attachment Scan0013.pdfView attachment Scan0012.pdfView attachment Scan0011.pdfView attachment Scan0009.pdfView attachment Scan0008.pdfHer is some info from the rebuild TM.