Brian Lent

Well I had just put new injectors in because it started idleing real rough, like it did the last time injectors went out at 90k. 140K on it now. Put 6 new bodies in and still the same. ChugChugChug and some white smoke, not alot but it is there. Could the FCA cause this or am I just wasting time changing it before I tear it apart. If I do have to tear it apart what should I do differently. I have a bad feeling in my wallet.

lmills

With the motor running take the oil cap off and visually check for smoke and excessive crankcase pressure. I am assuming you do not have a rail pressure gauge?

Brian Lent

No guage. I had taken the oil cap off and not really excessive blow by. I am sick thinking about it. I am one of the idiots with a rail cap and no guage.

lmills

check the cheap stuff first. Try the fca like you mentioned.

Brian Lent

Hey I appreciate it, coming from you I might be able to sleep tonight. I have a friend that has a shop near me that has a new FCA and said try it before you buy it, so I def will check that first. Thanks alot.

J Lent

Did you pick up the FCA from Doug?

J Lent

Don't forget to tell them..... truck was running good, shut truck off, started it & had very rough idle with white smoke. No codes are present.

J Lent

Tonight, we changed the FCA to rule that out. Nothing changed. Then we removed the turbo/exhaust manifold & fired it up. No.6 cylinder rolls the white smoke out constantly as the rest of the cylinders puff smoke. We are going to swap the #6 injector with a different cylinder to rule that out, then its off with the head.

J Lent

We switched the injectors & problem is still there...#6 cylinder smokes like a train. We are unbolting the head now...not looking good.

rogers259

Man that doesnt sound good...post pictures when you find the problem with #6. Hopefully its nothing to bad.

Don M

maybe do a leakdown test before yanking the head.

btw, thats a dang cute kiddo you got in your avatar Mr Lent.

J Lent

Thanks Don! Too late for a leak down test, head is off bud.

J Lent

The cylinders all look good, but #6 has minor scratches from where a piece of the headgasket broke off scratching the wall. Can't even grab the scratch with your fingernail. The head is at the machine shop getting fluxed, flattened & freshened. Here are pics.

http://i423.photobucket.com/albums/p...4/SD532871.jpg
http://i423.photobucket.com/albums/p...s/SD532879.jpg
http://i423.photobucket.com/albums/p...4/SD532870.jpg
http://i423.photobucket.com/albums/p...4/SD532873.jpg

Spooler

Is that piston a little melted or is it some other debris? Kinda looks like the injector had been spraying out of the bowl a little bit.

J Lent

Nah, its carbon buildup on the piston. The piston looks perfect.