Please note that the 3B-II and the 3B are a little different with respect to starting and running. The 3B-II found in the BJ73 use a rotary pump with a shut of solenoid in the pump and the regular 3B uses the EDIC system and has an inline pump.
It sounds like a glow issue.
Check your fusible link and connections at the batteries first, then check the relays for operation.
Most of this stuff can be tested with a 24V test light like the ones you can get from Napa for about $10.
Generally, if you have to cycle your key more than once, you're going to have problems. It is far better to turn the key on, look for the yellow idiot light, and then once it has gone out, wait for a few seconds more and then crank.
The absolute most simple test to check for glow operation is with a test light hooked to ground and the glow bus bar - look for the light to come on when the key is put in to the "on" position. If no light, check fusible links and battery connections. If a light, then pull the glow plugs and glow test them - each should light with in about 0.5 seconds of each other.
Once one glow plug fails, the others will follow in short order on most systems due to the increase in current. Some systems, however, will shut down once one plug has failed of the circuit resistance value is out of spec. (this is not a system that is typical in Toyota super-glow systems, however.)
~John
