To EDDNHopper
Was it a 100,200 or a 300 ??Sounds to me like battery probs.(DC starters on engines,you need two sources of power,either 2 batteries or 1 and a TR)The "hose"you mention I suspect was actually a cable from a "emergency battery pack" fitted in the hydraulic bay and plugged in just forward of it.There are various configs for Batteries and TR's.The long time before starting 2,3 was more than likely to give the battery charger (not dedicated)time to come back on line and allow starting.
Cheers