OM 606 idle miss and excessive blue smoke
OM 606 idle miss and excessive blue smoke
Not sure if your referring to when your pop testing or when the vehicle is running. During pop testing there should be no fuel coming out of the return ports if everything is sealed in the injector body. When running the vehicle with the return hose off the fuel filter banjo there will be a steady flow of fuel at a low pressure.
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Maybe I don't understand the function of the return. I assumed it was for internal leakage of the injector, which I would think would be possible from pop testing as well as normal engine running. The difference just being that there would be more flow when the engine is running. For pop testing, if i hold the injector at say 1800psi, i'm getting about 1 drop out of the barb per ~15 seconds.
The pressure on my pop tester will slowly bleed off if i stop increasing the handle travel, and i'm 90% sure it's through the injector and out the barb.
is this normal or could this be causing me issues with improper injection timing/qty?
X Double Dot
06-18-2020, 06:36 AM #14[quote pid='90552' dateline='1592411347']
Not sure if your referring to when your pop testing or when the vehicle is running. During pop testing there should be no fuel coming out of the return ports if everything is sealed in the injector body. When running the vehicle with the return hose off the fuel filter banjo there will be a steady flow of fuel at a low pressure.
[/quote]
Maybe I don't understand the function of the return. I assumed it was for internal leakage of the injector, which I would think would be possible from pop testing as well as normal engine running. The difference just being that there would be more flow when the engine is running. For pop testing, if i hold the injector at say 1800psi, i'm getting about 1 drop out of the barb per ~15 seconds.
The pressure on my pop tester will slowly bleed off if i stop increasing the handle travel, and i'm 90% sure it's through the injector and out the barb.
is this normal or could this be causing me issues with improper injection timing/qty?