hi, i am a new member and would like to help:-
1. without the glow plug battery, plug the exhaust hole and pull the engine to see if fuel goes into the engine. if ok then start your engine as usual. if not ok, see step 2 below.
2. without the glow plug battery, plug the exhaust hole as well as the air intake hole and pull the engine to see if fuel goes into the engine. if ok then start your engine as usual. if not ok, there should be some serious sealing problem between connections in the engine. observe if there is any fuel leakage when you pull the engine and check the seal at the leakage location.