The Stovebolt Site Forums The Shop Area Engine Shop 235 engine noise, help needed!

Hi Keenebolter, as a diesel mechanic I have come across many situations where and individual might conclude the worse. The noise on your video could be something going on with a piston or valve. But before taking anything apart I would do a visual to see if something simple might be creating a noise(fan or belt). My next step might be removing the rocker cover and bar the engine by hand going through the firing order and checking the valve clearances. Maybe something is incorrect and a piston is striking a valve. But the noise could be coming from something lower in the engine caused by a con rod issue or main bearing issue. You may have to take the head off to look for some indication of a piston in need of help. A problem can be caused by the something one might not expect. A friend had a 235 rebuilt and after he installed in we found it was hard to turn over by hand. In the end it was a welded joint on the bell housing which caused the tranny to bind because it was not mated true to the housing. A little bit of filing and the problem solved. Hopefully your solution will be and easy one, good luck