It's on and off. It's get bad like this when the engine is hot. I put some 2-stroke oil into fuel and it's went away, than fill with diesel and it came back again. I'm collecting parts for the DV repair. I wanted to change glow plugs as well, as I will remove intake anyway. I think it's too tight to get proper torque on on DV housing.
As you can hear it's get bad when car put into the gear, and than of the gear the nailing sound as not as bad. Too me it's telling me it's fuel pressure related. In gear rmp drops as loud on engine. I have even tried, slow increase rmp and the knocking goes away completely. I thought it's hydraulic lifters but my theory with 2-stroke oil confirm it's combustion or fuel pressure problem.
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Originally Posted by Diseasel300
That's pretty nasty knock in your video. Does it go away when running on straight diesel purge? That should be your very first diagnostic. If it does, you know it's injection related. If it doesn't, you know it's a mechanical problem.
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