I have a recent issue I hope someone can help with. If the machine is in the garage- it starts and runs perfectly all day. If I leave it outside OR even if I just turn it off outside when it's cold, if it sits even for an just an hour, it will start up normally (1 or 2 cranks) then stalls within 10-30 seconds. It stalls quicker if I move or do hydraulic work and it will stay running a bit longer if the engine is just idled- but it will stall. Once it stalls, it cranks much longer to restart- like air/fuel starvation BUT it will restart. this will repeat another 1-2 times before the machine will stay running and do work. I do run #2 diesel with anti gel and cetane boost. Filters are new. It's acting like I have an fuel system leak/air pocket except that it doesn't do this unless is really cold (below 30 deg F). I also noticed I don't always hear the fuel priming pump in the cold? Opinions?
Sounds like an air leak to me, rubber will do funny things like that. Check out heymccall posts on Tak's stalling or starting hard. HeavyEquipmentForums