Nice find!I just won a bid on a 6.5 Optimizer cast by Dalton.Now I have 2 Optimizers. The first one is a Navistar I bought for myM1028 restomod. The Dalton will go in my K1500 which is being painted at the moment.
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Have you checked the oil for any contaminates/metal frags?Looks like I am ordering parts and planning the logistics of replacing an engine. Was pulling a trailer down the interstate yesterday with the windows down so it was noisy anyway, Started to get tired of the noise so rolled them up and found out it wasn't just wind and road noise. Went a few more miles into a rest area where it was still running fine with no smoke just loud. Nothing obvious. Shut er down and quick restart no change. After it cooled tried again and its running bad and lots of unburnt fuel smoke and a getting progressively louder chirp to go with the banging clanging noise. .Flexplate looks fine and since that is the only external thing that could maybe make that much noise I think its gonna come out and is likely done. Thinking maybe a piston skirt broke off?
I have a spare engine out of a truck I crashed but its still not going to be cheap or easy. I know I don't have the space or headroom to do it in my garage. Gonna have to ponder if I can do it in the driveway or maybe roll it in and out as needed.
Was a $600 tow for about 70 miles. They were gonna originally pull the trailer back too but their big truck got sent to another job where it then died and the medium truck just wasn't liking the burb plus the trailer so we left the trailer at the tow yard and I came back to get it later with a borrowed truck.
If there is its not bad enough to show on the dipstick but I have not drained it for a more complete look. I don't think it will gain me much if I do it and find something or even if I don't. Its such a loud clank and its got to be internal that I think its coming out. Once its out I will likely tear in a bit just to see and see if its a pile of scrap or maybe something rebuildable to save or sell. I'm not gonna try and pull heads or anything on the bottom while its in the truck. I think its less pain to pull an engine than spend all that extra time bent over. You gotta take the same crap off to get at the top end as you do to pull it so might as well just pull it. Makes it so much easier to deal with things like stuck exhaust manifold bolts. My crossover wasn't in great shape so I just sawzalled it to get the inspection cover off rather than snap off bolts. Maybe if I was still 20 but not these days.Have you checked the oil for any contaminates/metal frags?
The only things I can think of is either a pissing injector got enough fuel in to slightly bend a rod /crack a piston, breaking the piston skirt or.. Harmonic vibrations from a failed dampener, bending a rod causing the piston skirt to make side contactIf there is its not bad enough to show on the dipstick but I have not drained it for a more complete look. I don't think it will gain me much if I do it and find something or even if I don't. Its such a loud clank and its got to be internal that I think its coming out. Once its out I will likely tear in a bit just to see and see if its a pile of scrap or maybe something rebuildable to save or sell. I'm not gonna try and pull heads or anything on the bottom while its in the truck. I think its less pain to pull an engine than spend all that extra time bent over. You gotta take the same crap off to get at the top end as you do to pull it so might as well just pull it. Makes it so much easier to deal with things like stuck exhaust manifold bolts. My crossover wasn't in great shape so I just sawzalled it to get the inspection cover off rather than snap off bolts. Maybe if I was still 20 but not these days.
All that external stuff is fairly fresh and it was intitially running reasonably smooth and smoke free but after cooling off and running for very sort periods its now pretty rough and smoking like crazy. Blowby has a big pulse to it, its not crazy bad but its got a distint pulse to it now so I'm thinking its a piston issue of some sort and its not got enough compression at idle to run. Off idle it still seems to pick it up but it seems like its getting worse fast.The only things I can think of is either a pissing injector got enough fuel in to slightly bend a rod /crack a piston, breaking the piston skirt or.. Harmonic vibrations from a failed dampener, bending a rod causing the piston skirt to make side contact![]()