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The injector of the center cylinder actually is defect... I was afraid that a new one will cost alot... but I´ve to pay only $ 50 for a new one... :-D

In the meantime I did alot of testing... I took of the blower and checked it and on the other side of the engine I replaced the gasket of the airbox cover. I thought the engine didn´t get enough air. After that the engine smoked as it did before. :roll: Than I took of the manifold and know it...

Ahhhh.... I forgot... some of the fuel is getting back to the tank! :roll: Thank God....

To make shure that I didn´t get bad fuel I took a can with 2 litres (0.5 gallon) and see what happend....:cry: Fuel consumption of 0.5 gallon within 1 minute at idle speed....:shock: What the **** is going on?:roll:

Of course, I can get injectors for the DD 3-53 in Germany, but one will cost $ 150! My injectors (N45) are nearly new, they got only 600 mls...

In the meantime I changed the thermostat. The engine temperature reaches 180°-190° F. I also did the injector timing adjustment (no change needed) I adjusted the valve clearance (they have been a little to loose) and I adjusted the injector rack control lever (has been nearly ok). I also checked...

Also... during my ride the engine starts to smoke, first light grey, than dark grey and finally nearly black... !?:roll:

OK, thank you... I fixed it, but no change, temperature dosn´t go higher than 140°....:cry:

The 3-53 of my goat doesn´t reach normal operating temperature... If I push em to the limit the temperature will go up to 140° and it should be 180° - 200°. So I opened the thermostat housing and i found the thermostat and another part. I´m not shure if it belongs to the thermostat or if it is...