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| Re-manned Injectors ! (Page 1/1) |
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Lou6t4gto
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APR 28, 08:15 PM
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customer bought a set of" Re-manned Fuel Injectors" (EBAY) for his 3800SC Swap. Engine ran pretty good BEFORE "installing them".
I put them in, started the car, Holy sh-t, runs like crap, smoke rolling out, Shut it down. I put on a pressure gauge, turn the key on and it pumps up to 55 PSI and then IMMEDIATELY Drops to ZERO ! pulled the re-mans out and put the "old ones" back in and it runs fine. What a WASTE of time and money!
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Dennis LaGrua
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APR 29, 09:07 AM
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That's why I clean injectors myself. There is no way that you can remanufacture a fuel injector. The only thing that you can do is clean and flow test. The easiest way is to attach a cleaning cylinder on the fuel rail and run the solvent directly through the injectors. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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Lou6t4gto
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MAY 05, 06:48 PM
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I just ordered one of those injector cleaners off ebay, with the wires/alligator clips and tube to put the injector in and then use a can of injector cleaner to flush it. should be good even to just Check em. I must have 30 3800sc injecors in a drawer LOL
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fieroguru
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MAY 05, 07:01 PM
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You can pick up a 4 cyl fuel rail for next to nothing, use some scrap GM injector pigtails from a junk harness and make a test rig that you can fill injector cleaner with, pressurize with an an air compressor, and use a 9 volt battery and push button to cycle/spray/clean 4 injectors at a time. Add some test tubes and you can monitor the relatively flow between them...
I spent a couple of days chasing an injector issue on a 4.9 way back when, ever since, I test them before install.
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Dennis LaGrua
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MAY 05, 08:34 PM
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| quote | Originally posted by Lou6t4gto:
I just ordered one of those injector cleaners off ebay, with the wires/alligator clips and tube to put the injector in and then use a can of injector cleaner to flush it. should be good even to just Check em. I must have 30 3800sc injecors in a drawer LOL |
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That inexpensive injector cleaning kit works great on the units that are off the car. Only one suggestion: put a push button switch on the injector harness. If you try to clamp it on a battery or battery charger (while connected to the injector) you will get a spark. If the flow of the cleaner being sprayed out hits that spark you will end up with a flamethrower. Just use it cautiously and you will get great results. I also found that some brands of aerosol carburetor cleaners can attach to the injector test jig better than others. As for cleaning on the car you can't beat the pressurized fuel rail cylinder kit. They are about $69 on eBay and the cans of OTC $12 ea on Amazon. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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Lou6t4gto
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MAY 11, 01:16 PM
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works Great, for Testing and cleaning.
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