I just took my 2014 Bobcat S530 with 2200 hrs into the dealer for what was knocking in the engine ends up. There was dirt and oil in the turbo. They are stating that this also entered the engine. And even though we've got good compression, everything sitting right all the injectors are working correctly they're telling me that I need to replace the entire motor. Are there any other alternatives that I could choose like just changing out putting a new turbo on it?