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I finished up the injectors and got them reinstalled. The truck runs great, so I count it as a success. I still need to finish up with the spare injectors and take another run at getting the compression tester to work, but that will have to wait for another day...

Here are the spare injectors that I bought. They are pretty gunked up. I had one that still won't work right after cleaning it up so I gutted that one for my engine compression adapter. The others cleaned up and worked pretty well. Sent from my iPhone using Tapatalk

Finally made good progress on the injectors. I've got it down now where I can break an injector down, clean it, reassemble it and set the pop pressure, all in about 10-15 minutes. All of my original injectors set up just fine. I did have one that was sticking open, so I hope fixing that also...

I've been working a lot, but I did get a few late-evening hours to work on the injectors. A) The pop tester finally works! That consumed my entire "patience" budget for the rest of the year. B) I checked my injectors and they're all popping at about 3,000 except one. I had one that was...

It looks like Colliflower got it right. I'll be able to connect it and try it out this evening. I'm confident now that I'll be able to get my injectors tested and calibrated this weekend. I'll post more after I get some done. Sent from my iPhone using Tapatalk

A brief update on my injector testing saga. Colliflower is making a fuel injector pipe for me, to connect my pop tester to deuce injectors. I hope to have it later this week. I bought 5 injectors and 6 injector lines from a guy on FB. The injectors are from 1985 and in need of service, but...

Pop tester arrived yesterday. Sort of. The packaging consisted of basically dropping a 24 pound piece of steel in a box. By the time the package reach Atlanta, the box was a wreck. USPS took the whole mess, and put it inside another box, and then delivered it. I checked it out last night and...

I'm seriously beginning to think injector pop testers are made of unobtainium! The first one I ordered got lost before it ever shipped and it was the last one the seller had. Something entirely hinkey about that whole deal. I got my money back and ordered one from a different vendor. This one...

The pop tester that I ordered from that popular auction site, still hasn't arrived. UPS was showing "order received for processing" but no shipping info. Now it says "shipping voided." I've contacted the 5-star vendor and they say their checking on it. Hopefully we get it resolved quickly.

That's the one. Real nice people and they seem to do a lot of diesel work. My father-in-law uses them for his dump trucks and heavy equipment. He just couldn't figure out how to connect the deuce injectors to his pop tester.

I'm anxious for it to get here. It should arrive tomorrow but I'm leaving about noon for a few days. I'll test it out as early next week as possible. I'm so ready to get that done and get my truck going again!

I've been doing some measuring and some studying this evening. I'm 95% certain that he injector connection is an 1/2" x 20 male tube nut for 1/4" tubing. The hard part seems to be the 1/2 x 20 is usually fitted to 5/16" line. (The connection at the injection pump seems to be a 9/16 x 18 male...

I finally had to give up on my local shop and I picked up my injectors today. AMBAC says they'll "test them for function" for $48 each, plus shipping both ways. Other services to be quoted after testing. Ain't doing that. I might end up shipping them to Portland. If I had more free time, I'd...

They're doing a rebuild. $48 for that doesn't look bad to me, but my experience with these injectors is limited. If they are replacing the springs, then the 248-259 bar pop pressure is a little high, but close. That's about 3600-3750 psi. The info I found said new springs should be set at...

I wouldn't pay $48 each to clean them. That's normally $20-$25 bucks to clean, test and set them. $48 sounds like a rebuild. New injectors are $70.

That makes perfect sense. I just need an old injector now.

Finding the correct line nuts is the problem. The guy at Royal Brass pulled out pretty much every type and size, metric and standard, and nothing seemed to be a perfect match. He had a huge kit for checking connector sizes and nothing seemed to work. I even rifled through the selection at Lowe's...

I found that it says that 3050# is for new springs (new or rebuilt injectors). The new springs will "take a set" to 2800#, so the correct number for "used" injectors is 2800#. I've seen a lot of debate about this and people setting the pop pressure as high as 3700#. I plan to go with the...

I know this thread has been dormant for a few months, but it looked like a good place for me to add my fuel injector testing and calibration questions. Disclaimer: I've been working on this for about a month. I've searched, read, cross-referenced, and read the related and similar threads...