thomaskd44
Member
I had purchased a TD 9 and it had one of few problems; the fourth cylinder wasn't firing. The engine emitted a gray smoke. When bleeding the bolt on the injector, the smoke would disappear. When closing the bolt the smoke would return. When the engine was low on water the engine would sputter -intermittently- and then the fourth cylinder would be firing and the engine operating well. I cleaned the injector in the fourth cylinder, though it made no difference.
Finally, I started the engine when the engine was low on water. The engine operated on all four cylinders. The engine operated for a half hour, and then I added water. Soon the engine began to smoke. Later I checked the valve setting. All settings were good except the third cylinder, it had 50 and 52 thousandths instead of 019 thousandths. Having the engine operate, becoming warm, I shut the engine off and after removing the valve cover, I torqued the head bolts to 180 ft. lbs. I observed a couple of nuts was a half turn loose, and at the front of the head there was four nuts that was one turn loose. In any event, all nuts was torqued in sequence, and torqued well.
Installing the components, the valve cover, and filled the engine with water. I started the engine and more smoke gray/white emitted.
I loosened the injector bolt on the fourth cylinder; there was no change in rpm as before, and smoke still emitted. the third cylinder rpm dropped suddenly and the second also. However, when loosening the injector bolt on the first cylinder there was no change in rpm. This was the first time for the first cylinder.
I removed the head. The first and third cylinder had crack between the valves. On the third cylinder, that crack ad been addressed with brazing. the first cylinder had not been addressed. At the injector port of each cylinder except the fourth cylinder had good burn. The fourth cylinder was black -completely. Observing the fourth cylinder piston, I observed that apparently some kind of material was on top the piston and hammered the top of the piston on one side. At the other side, at the edge of the piston, there was a small piece of piston top missing. Like 1/16 in, a bit more than 1/16 across, and 1/16 back to the edge. The cylinder wall was absent of any scrape, or scar.
Now, what do we make of this? Could the cracks be welded? Does the missing little piece make any difference? Is the gasket leaking water? There is no water in the oil and there is no oil in the water. Could the head be warped? When re-torquing the engine could that have affected the head, if it was warped?
I invite those that have experienced similar experiences as described above. As I have observed that there may be 6 - 9 replys; there could be 879 views. In turn helping more people than just me.
Okay now come out of the wood work.
Thanx
Finally, I started the engine when the engine was low on water. The engine operated on all four cylinders. The engine operated for a half hour, and then I added water. Soon the engine began to smoke. Later I checked the valve setting. All settings were good except the third cylinder, it had 50 and 52 thousandths instead of 019 thousandths. Having the engine operate, becoming warm, I shut the engine off and after removing the valve cover, I torqued the head bolts to 180 ft. lbs. I observed a couple of nuts was a half turn loose, and at the front of the head there was four nuts that was one turn loose. In any event, all nuts was torqued in sequence, and torqued well.
Installing the components, the valve cover, and filled the engine with water. I started the engine and more smoke gray/white emitted.
I loosened the injector bolt on the fourth cylinder; there was no change in rpm as before, and smoke still emitted. the third cylinder rpm dropped suddenly and the second also. However, when loosening the injector bolt on the first cylinder there was no change in rpm. This was the first time for the first cylinder.
I removed the head. The first and third cylinder had crack between the valves. On the third cylinder, that crack ad been addressed with brazing. the first cylinder had not been addressed. At the injector port of each cylinder except the fourth cylinder had good burn. The fourth cylinder was black -completely. Observing the fourth cylinder piston, I observed that apparently some kind of material was on top the piston and hammered the top of the piston on one side. At the other side, at the edge of the piston, there was a small piece of piston top missing. Like 1/16 in, a bit more than 1/16 across, and 1/16 back to the edge. The cylinder wall was absent of any scrape, or scar.
Now, what do we make of this? Could the cracks be welded? Does the missing little piece make any difference? Is the gasket leaking water? There is no water in the oil and there is no oil in the water. Could the head be warped? When re-torquing the engine could that have affected the head, if it was warped?
I invite those that have experienced similar experiences as described above. As I have observed that there may be 6 - 9 replys; there could be 879 views. In turn helping more people than just me.
Okay now come out of the wood work.
Thanx