smokie the psd

[yzmatt]

Ok so I had some injectors cups crack. Saved some money to fix them and do injectors and the works. Figured why not since I'm already at it. Kids needed something can't remember so there goes that money. Saved again and house needed something else. There goes that money. Finally I keep enough to do the cups. Rented tool from Clay, did cups, installed FRx (gold spring), rebuilt fuel bowl while I was at it, and did tymar mod. Let the cups sit when I did them and pressure checked them at 16 psi for a couple of hours to verify all good. No problems. Installed the injectors that came out (pretty sure they are stock by the numbers on top being so close in sequence) with new orings and copper washers. New valve cover gaskets and under vc harness, did the .50 cent mod while at it.

Now that I'm trying to clean the cooling system of all the diesel it has started to really smoke white smoke. Like when you start up the truck in the morning when not all the fuel is being burnt right off the bat. Same but not stopping even at high idle and warm. It also has a weird miss/knock sound when cruising around 1650-1900 rpms. When turbo boosting and cruising no sound. There is 279,000 miles on this truck with original injectors. No engine light and the injectors seem louder then before. Do you guys think injectors have just had it?

By the way when I bought the truck last year I had a mechanic check it out and he did a buzz test and said that #3 and #8 injectors weren't right. But had another check it a month later and he said there were no codes there sitting in the computer. It ran so good I had it checked again from the first diagnosis. Now here I am needing help. Does this sound like injectors to you guys?

 

[neverkickn]

Don't continue to drive it. Sounds like you have a hung injector and that knock you are hearing is fuel knock. Or maybe you didn't fully seat an injector. Assuming of course that you didn't drop something down in a cylinder and jack up something in that way.

 

[neverkickn]

let me back up here. Are you sure that it is fuel smoke? If it smells like burned oil then it is possibly just oil in the muffler from the injector removal.

 

[silverpsd_06]

Alot of possibilities there, could be anything from a hung injector as stated above/ not seated properly. Was ALL the oil, fuel, coolant ect out of the cylinders before you started it up? Without knowing what the actual white smoke smells like i couldn't give you a solid guess as to what the actual issue really is.

 

[yzmatt]

Neverkickn Thanks for the help.
It smells like a bad running tractor on the fuel side. And no i didn't drop anything in there. I've been driving it since Monday. Just decided to do the multiple flushes today and noticed the smoke. Other then it smoking a little two days ago after starting it up but as some as I pulled out of the driveway it stopped, it hasn't been at all. Not in the morning, afternoon , or on the way home. Its not a knock like you are thinking. I was trying to give the miss a little more description. And its only before the turbo whines up. I did get frustrated a couple hours before I posted on here and drove up to 90 mph approximately 2750 rpms for a couple miles and on the way back it stopped smoking. Except for one time when I wrapped it up with the clutch in. It puffed like the magic dragon one time. The fumes kind of burn my eyes if that helps at all when it just idling in my drive way.

 

[silverpsd_06]

How many miles have you put on it since you did all this work? It takes quite some time for all the air to work out of the system after you R&R injectors. That would also explain smoke if you haven't driven it all that many miles. Burning your eyes would mean raw unburnt fuel

 

[yzmatt]

Thanks to you silverpsd 06 also.
It smells like a really bad fuel air mixture.
You know how a diesel smells at the exhaust (kind of nice). Well this will burn your eyes and kind of of stays in your nose for hours.
The only reference to it is my grandpa had a tractor he only hauled hay with and it was cabless ih and the exhaust would get in your eyes and smell bad. Not like when your discing but just cruising. Not the good turbo spinning black smoke.

That's why I'm thinking injectors. I am fairly meticulous so I don't think its a injector not seating issue. Also it has run great up till today since getting it buttoned up and driving last Sunday.

 

[yzmatt]

$60.00 of fuel at 17 mpg. Not sure actually how many miles.

 

[yzmatt]

Lets say 300 miles. It did do some funky stuff Sunday when I got it going after the repair for probably 10 miles. But after that ran good. That's why I keep driving it.

 

[silverpsd_06]

Ok now how long have you driven it.. I.E up to proper operating temperature? You won't get the air worked out very quickly just going back and forth to town and not getting it hot

 

[yzmatt]

I did notice some power loss on the way home last night. My wife thought I was looking into things. But it did seem to climb as quickly a hill I climb as soon as I get out of town on the way home. If not injectors what else could it be?

 

[neverkickn]

Yeah, the burning eyes and fuel smell tells you you have fuel smoke. That doesn't necessarily mean that you have a problem, other than some residual fuel in the exhaust. However, if you keep driving it and the extra fuel is coming from an injector problem or improper injector/cup installation, then you could do some serious damage.

 

[yzmatt]

One way to town is 22 miles at 60-70 mph. The heater gets hot.

 

[yzmatt]

Yeah, the burning eyes and fuel smell tells you you have fuel smoke. That doesn't necessarily mean that you have a problem, other than some residual fuel in the exhaust. However, if you keep driving it and the extra fuel is coming from an injector problem or improper injector/cup installation, then you could do some serious damage.

Serious Damage is what i'm thinking too. Hydrolock? You thinking injectors? I read a think from Swamps that said 220,000 miles is a good life for stock injectors.

 

[neverkickn]

Or a cracked/melted piston. Since you put so many miles on it after the repair and you are just now noticing the smoke I would lean more towards an improperly seated injector before I went to far into any other theory. It is easy to do and it is easy to look for. Just pull the valve covers and run a straight edge on all the injectors. If they all line up then chances are that they are seated right.

 

[yzmatt]

Wouldn't it running good up to today be an indicator that I did the cup install correctly? And I pressure tested the coolant also.

 

[silverpsd_06]

Not hydrolock necessarily just unburnt fuel being injected causes excess heat, hole in a piston, washing a cylinder down with fuel. Have you noticed any fuel smell in the oil if it is that bad?

 

[yzmatt]

On the straightedge thing. I do have one on each bank, the same too second one back that are ever so slightly higher. Like a 1/16" maybe. But wouldn't it show something before today? Just figured it was a fluke

 

[yzmatt]

I changed it today so I will check but didn't seem weird at all while doing it.

 

[neverkickn]

Wouldn't it running good up to today be an indicator that I did the cup install correctly? And I pressure tested the coolant also.

I don't have near the experience necessary to answer that but I can tell you that if you dont get an injector fully seated in the cup that the copper crush washer will allow combustion gasses/heat to pass up to the lower oring that seals the fuel off. When that oring melts it will allow fuel to piss out into the cylinder, which in turn causes the smoke and raw fuel smell out of the exhaust.