I am new to the forum. I bought a k reg 2.8td fourtrak off an retired man. It blue smokes alot, gets a little better when warm, and it is very hard to start from cold. I can hear the glow plug relay is clicking when I turn the key, the glow plug light is also working, However, there is no power to the glow plugs. I have also open the injector and the fuel is coming through. Someone told me there is a filter inside the pump and it might needs cleaning or changing. and How do I find out the timing is right? Thanks in advance.