Help with smoke (oil) issues
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Help with smoke (oil) issues
I've been helping my cousin fix his truck. We have rebuilt his turbo with riffraffs kit and got his injectors redone by Jim at rosewood. There are no mods on his truck. After doing those we are still having an issue of it blowing smoke out of the tail pipe and it increases as boost increases. There is no oil in his fuel. What other things could we be overlooking. I checked blow by by putting the oil cap on the oil fill and it stayed there so I don't think blow by is really that bad. Any help would be appreciated. Also it's an early 99.
Hotshot
Joined: Jan 2011
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From: Puget Sound
I've been helping my cousin fix his truck. We have rebuilt his turbo with riffraffs kit and got his injectors redone by Jim at rosewood. There are no mods on his truck. After doing those we are still having an issue of it blowing smoke out of the tail pipe and it increases as boost increases. There is no oil in his fuel. What other things could we be overlooking. I checked blow by by putting the oil cap on the oil fill and it stayed there so I don't think blow by is really that bad. Any help would be appreciated. Also it's an early 99.
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Joined: Jan 2011
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From: Puget Sound
It can be. If you say there's not a lot of blowby (passed upside-down cap test), then you're left with a clogged air filter, a dirty doghouse filter, a blown seal in the turbo, an improperly seated injector, a bad injector O-ring, a full intercooler, or you just haven't burned everyting out yet.
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If he torqued the injectors down to 14 ft/lbs instead of 14nm would that cause it? Where is the doghouse filter? The injectors and turbo have brand new orings. I know the injectors were placed in carefully as I watched him do it. Not sure on the turbo though.
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Joined: Jan 2011
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From: Puget Sound
Turbo O-rings are not the same as spindle seals... those can leak. CCV doghouse - on top of the driver-side VC.
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From: ellensburg
How long ago were the injectors swapped (time and miles)?
When you say the turbo was rebuilt, can you entail exactly what you did? Or did you just replace the o-rings at the pedestal and turbo connection and pedestal to block connection?
Does the truck have a muffler/cat?
14lbs vs 10lbs shouldnt be giving you problems, but theres a chance it could. Honestly I do not torque injectors anymore, I simply snug them by hand, go a little bit extra, and then check the torque to make sure they are all about the same, and none are under the recommended torque.
Increasing with boost or increasing with temp?
Oil loss?
These are all questions that we need answers too in order to really help.
When you say the turbo was rebuilt, can you entail exactly what you did? Or did you just replace the o-rings at the pedestal and turbo connection and pedestal to block connection?
Does the truck have a muffler/cat?
14lbs vs 10lbs shouldnt be giving you problems, but theres a chance it could. Honestly I do not torque injectors anymore, I simply snug them by hand, go a little bit extra, and then check the torque to make sure they are all about the same, and none are under the recommended torque.
Increasing with boost or increasing with temp?
Oil loss?
These are all questions that we need answers too in order to really help.
Lead Driver
Joined: Jul 2003
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From: Wheatland, Mo
It can be. If you say there's not a lot of blowby (passed upside-down cap test), then you're left with a clogged air filter, a dirty doghouse filter, a blown seal in the turbo, an improperly seated injector, a bad injector O-ring, a full intercooler, or you just haven't burned everyting out yet.
I didn't know there was a filter in there. Mine is still setup as stock and the most I have done is to clean the outside of it when I replaced the injector harnesses and glow plugs.
**Please dont smack me too hard Tugly.**
Other than some smoke.. what would be some of the symptoms?
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Injectors were redone last week. Turbo was torn down and rebuilt with new bearings and seals with riffraff diesels rebuild kit one month ago. Truck started to smoke 3 days before we pulled injectors. Increases with boost not temp. Degass bottle is clean. Not sure about oil loss as he topped it off today and will monitor it. Going to take intercooler out and see how much oil is in there. The reason we started all this is because 3 months ago his truck started to run like crap/rough. Died on him while driving. Checked the oil and had to add like 8 qts. There were no signs of oil leaking or burning excesss out of the exhaust. That's when we pulled the intercooler tubes and saw oil in them. So we rebuilt the turbo and the oil stayed level.