Search results

Remove injectors and turn engine over to see what comes out of injector holes ( PS - ⚠️ - liquid in the cylinder , if any, will come out VERY forcefully. ) oil of any kind may not necessarily be bad - water would be a nightmare scenario.

Jason, The fuel injectors are what , as per ray 70 suggestion, you want to remove. They are located on top of the head to the left ( If you are facingthe radiator). The injection pump (fuel pump - timing issue .... one at the time) are mid engine to the right ( arguably requiring more TM...

Cheers https://www.steelsoldiers.com/threads/mep-803a-hydro-locked.199981/

Highly unlikely scenario but may be worth a look. When I acquired my 803a I ran into a similar problem with turning the engine by hand. It turned out that on cylinder was hydro locked The various steps I followed and advice I received are detailed on thread : "Mep 803a hydro locked" Cheets