In response to Gringeltaube's question; I'm hoping my experience is isolated... I bought 6 of the NOS injectors from TaylorTrading on that popular e-auction site, and took them to a local Injection and turbo shop to be pop-tested. The shop said that 2 were okay, but 4 of them had stuck needles, and were "beyond repair". I told the shop not to work on them further, and I went and got them back. I took one apart and saw some varnish, but nothing that looked too bad. I contacted Taylor Trading to see if he had any similar reports from others, he said no, and he kindly offered to exchange the 4 that were claimed to be bad. I told him thanks for the offer, but I'd see if I could make these work. So, I bought a pop-tester from that e-auction site, rigged up an adapter (see it
here...), and found that, sure enough, 4 injectors were stuck. Decided to take everyone of them completely apart, thoroughly clean them, adjust & test them. Subsequent ones were in worse shape and had more varnish (and a bit of rust) than the one I took apart first. l Got two to stay fuel-tight, adjusted to right at 3150, and chattering beautifully. Two others took a bit to get the needles out of the nozzles, but got them tight, right, and chattering too. The final two were tough. By soaking them in penetrant, and using the low setting on the heat gun, I was able to get the needles out of the nozzles, but they would not keep from sticking open when tested. Finally got them to pop and chatter by hand-polishing the needles and nozzle bores with 5000 and rouge. No hard feelings with Taylor's. After all, they were only about $180 shipped for the set of 6, and he kindly offered to swap them out. But I figured no matter what, whatever injectors I got, I was going to clean them and dial them in tight before putting them in the truck, so I figured I may as well work with what I had.
New message from: taylortradingco |
You are the first and only person to have mentioned any issues at the moment. I could not imagine anything being wrong with them, as they appear to have been well stored and they didn't have grease/cosmoline like stuff on them to gum up, but I am having another set pressure tested.
If you want to exchange the four you said did not pass, I will send you four more, but they are not guaranteed to work, just guaranteed to be what they are, military surplus NOS fuel injectors.
I have changed the item description to reflect that.
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https://www.youtube.com/watch?v=ncUPHLCSOIY |