Hi Folks, I have a 27ft Motor Crusier with 2x TDI300 power units. The boat was removed from the water last October with both engines running perfectly and has been lying ashore until now. Over the last few days I have been de-winterising the boat ready for the new season and one of the engines had developed a loud metallic knock. Upon inspection I found 2x bent push rods on 7 & 2 which I have replaced and checked valve clearances. All still set up 0.2mm. I have cranked engine by hand with no issues and checked cam belt (new last season), all still lined up and tensioned perfectly. The engine is still knocking loudly at tick over. I have not tried introducing revs for fear of damage. I have also cracked all injectors without joy so can rule out injector knock. I am slightly bewildered as this issue appears to have happened whilst laid up. Any suggestions??
