[bushpilot]

I think i understand now (that ours is different).

Is yours a proper (valved) jake brake or an exhaust brake (creating back pressure in the exhaust by blocking the flow) ?

On our MBE4000 engine we have an exhaust brake (integrated inside the turbocharger) - that blocks or reduces exhaust flow - it will not stall the engine when its on (idling or when started that i am aware of)....im pretty certain as forgetful and distracted (my wife calls it ADD/ADHD) that I've left the brake on when starting too.