[brobrad]

I have located a 5.9 Cummins 2006. It had 150K miles on it when the guy pulled the engine. It was blowing a fog of black smoke. He changed injectors and tried a few other things (I’ll find out what that was) but it continually blew a thick fog of smoke. So much so he said it would cloud out cars following him. He pulled it and replaced it. It is on a stand and can be cranked where it sits, but does not blow much smoke on the stand. He towed a backhoe for the 150K that are on the truck. Any ideas on what the situation is there and what would the motor be work as is condition? If anyone can chime in quickly, i need to make a call on the purchase of this motor. I might be able to get it pretty reasonable, but not sure what it is worth yet. It believe it is complete. I know turbo is in tact, but maybe aftermarket.

 

[sawdustmaker]

Black smoke is a tuning issue, sometimes a boost leak. Nothing seriously wrong. if its white smoke its an injector thing. something seriously wrong

 

[DieselPlower]

^^^^^^ what he said. There may have been a tune on it. Or, it had a boost leak. It wouldnt be likely to smoke while running on a stand because there is no load on the engine. However, if it does blow smoke while on the stand, i might be cautious.

 

[sawdustmaker]

Not DieselPlower!!!

 

[DieselPlower]

Not DieselPlower!!!

Wow that was so helpful! Anything more to add?

 

[brobrad]

Value???

thanks for the quick replies, what would it be worth? I want to be cautious here, but a running 06 motor ought to be worth a few dollars. I may just buy it and part it out. I have a 12v i am putting in a 69 F350 4x4 Crew, but if the 06 works out, it might be a better option????

 

[sawdustmaker]

I would love to have a running CR motor. if its in good shape its worth $2000-$3000.

 

[sawdustmaker]

Wow that was so helpful! Anything more to add?

I know, right? im such a helpful guy. :rof Your posts are usually so full of fail that i couldnt help that facepalm. It just happened, sorry...

 

[brobrad]

I would love to have a running CR motor. if its in good shape its worth $2000-$3000.

What do i need to do to check the motor out. I've got a 12V and i know more about them. I am really in the dark on the 24Valve. I can hear it run briefly on stand, but only shortly due to no coolant etc.

What do i check to see if there is a boost leak/waste gate issue. In the dark here. Any light appreciated. What should i check on fuel pump, injectors, turbos etc.

 

[DieselPlower]

I know, right? im such a helpful guy. :rof Your posts are usually so full of fail that i couldnt help that facepalm. It just happened, sorry...

Man, i hope to be as internet awesome as you one day. Lmao.

 

[06speed]

I know, right? im such a helpful guy. :rof Your posts are usually so full of fail that i couldnt help that facepalm. It just happened, sorry...

:rof


On a more serious note, I SERIOUSLY doubt a guy would drive a truck for 150,000 miles, and replace the engine because it smoked black due to hop-up of some sort. You'd think he'd know if it was turned up.

IMO, if he replaced the engine, obviously the black smoke was abnormal and/or obnoxious. Probably had a bad sensor or something simple wrong....or huge boost issue he never found.

To the OP, you really need it in a truck so that you can plug in with a scanner and check rail pressure, injector balance rates, engine dtc's, etc. I suppose you could run a compression check on the engine stand. While you have the injectors out for the compression test, send them off to be tested. Never messed with any wastegates, (duramaxes had full mechanical wastegate or a VGT), but I assume you could test the solenoid with simple + and - to the solenoid. Apply pressure to the wastegate diaphragm and see if it opens the wastegate.. see if the wastegate is stuck open....

There are a million things you can check. Most of them need to be in a vehicle hooked up to wiring for data communication and up to a fuel system for running/starting checks. Some you can investigate on the stand. Heck. I'd tear the motor down completely if it were mine.

 

[sawdustmaker]

Man, i hope to be as internet awesome as you one day. Lmao.

arty018: oh im awesome alright!

Maybe when you learn some more about diesels, get your head out yer butt and show a little respect for strangers you can as awesome as me too. I lost my respect for you because you have no respect for people who deserve it.

 

[sawdustmaker]

What do i need to do to check the motor out. I've got a 12V and i know more about them. I am really in the dark on the 24Valve. I can hear it run briefly on stand, but only shortly due to no coolant etc.

What do i check to see if there is a boost leak/waste gate issue. In the dark here. Any light appreciated. What should i check on fuel pump, injectors, turbos etc.

Like 6-speed said. no one pulls a motor cause of black smoke, why was it pulled? You can get the injectors tested.

 

[brobrad]

Engine Pulled becase of smoke

This is a 21 year old guy who is wanting to trade the motor as a partial payment for the truck. I guess my point would be: "Can i part it out, sell it outright, or fix it" The main thing i need to do my project is cash. If i can make a few dollars on the engine that's great. I would think any major issues would be obvious at start up. I realize no one pulls the engine due to smoke! He made it sound like an issue that they just could not resolve fast enough (guy did backhoe work) so they just got another engine. I'm working blind because i have not seen it yet. I hope to eyeball it this weekend. I might be able to get it for somewhere around a grand. I know that no one can magically diagnose the issue over the web with the little bit of info i have. I was just hoping it was an easily overlooked solution. Everything said and done, it would be great to get it going good and put it in my 69 F350 Crew Fx4.

THANKS FOR THE HELP SO FAR!

 

[sawdustmaker]

It would really need a blow-by test and injectors tested before you could know very much.

 

[DieselPlower]

arty018: oh im awesome alright!

Maybe when you learn some more about diesels, get your head out yer butt and show a little respect for strangers you can as awesome as me too. I lost my respect for you because you have no respect for people who deserve it.

Then maybe you shoukd just keep your trap shut instead of going off topic. Get a life man.

 

[DieselPlower]

It would really need a blow-by test and injectors tested before you could know very much.

Well which is it? In your first post you said it would be white smoke if it was injectors. Now youre saying they need to be tested because if black smoke.

 

[gordy michael]

Well which is it? In your first post you said it would be white smoke if it was injectors. Now youre saying they need to be tested because if black smoke.

I think he is trying to say you can do a blow by test and get the injectors tested too. But ya white smoke is usually bad injectors and the black is normal for a tuned truck. Hell if you can get it for a grand then do it atleast you will have parts.

 

[sawdustmaker]

Then maybe you shoukd just keep your trap shut instead of going off topic. Get a life man.

Staying on topic is overrated. Giving guys like you hell more important. You certainly deserve it.

Well which is it? In your first post you said it would be white smoke if it was injectors. Now youre saying they need to be tested because if black smoke.

Im saying he shouldnt listen to the guy he is getting it from and find out for himself.

 

[brobrad]

Staying on topic is overrated. Giving guys like you hell more important. You certainly deserve it.




Im saying he shouldnt listen to the guy he is getting it from and find out for himself.

Here's the deal, it was rolling BLACK smoke. I know you are referring to someone elses's fluctuation in diagnosis, but i just want to make that clear. I do appreciate everyone's help thus far. I just don't want to get a bad deal. In fact i usually like to be on the money making side of things, but it doesn't always happen that way.

I think that i will get him to start it on the stand, observe for myself and judge from there. I would think if it runs smooth at all that it is probably redeemable.

Any further insight is much appreciatd.