Please help.
Following a complete rebuild, my FJ40 has a knocking noise coming from the bottom of the engine.
We initially found that the cam shaft thrust plate was slightly bent and thought this was the problem. We changed it, checked all we could from underneath, bolted the motor back together and fired it up. Unfortunately, the knocking remained, albeit slightly less noisy.
We have now taken the engine back out and completely stripped it down again. We can't find a single thing wrong with any of the components and there's no sign of any unusual wear.
Does anyone have any ideas about what the problem could be.
Following a complete rebuild, my FJ40 has a knocking noise coming from the bottom of the engine.
We initially found that the cam shaft thrust plate was slightly bent and thought this was the problem. We changed it, checked all we could from underneath, bolted the motor back together and fired it up. Unfortunately, the knocking remained, albeit slightly less noisy.
We have now taken the engine back out and completely stripped it down again. We can't find a single thing wrong with any of the components and there's no sign of any unusual wear.
Does anyone have any ideas about what the problem could be.