starting and running problems

[solodon]

lvmc, thanks, I've turned off both gate valves in the engine compartment.  I don't think anything can get to the driver area with those closed but will check.

[gumpy]

Hi, well good news, sort of, I let the coach run for over an hour today.  It starts like it should and didn't stop running.  That's the good news.  The bad news is I have no idea why it shut down on it's own the other day.  I've put in over 14 gallons of coolant, and still do not see it in the sight glass on the tank.  Both valves are closed to the heater system as I've removed it, Man this takes a lot of fluid  .  Oh well continue with the work at hand, and take care of problems as they arise.  Everyone have a great day and tomorrow.

14 Gallons!!  and another 4 in the following post??  Holy crap. If I'm not mistaken, my system took 24 gallons when I changed it
and added in my heating system loops. So your engine was basically dry! No wonder it shut off. It probably overheated.

You bus may have the low water level shutdown option, or more likely, it may have shut down due to overtemp on the thermo sensors.

I hope you didn't crack the heads.

[solodon]

Thanks Gumpy, the radiator hoses were all warm so I know water was flowing through the radiators.  Temp has not gone over 175 at the secondary gauge in the engine bay.  As I moved it today the low water light flashed so I must be close.  Was going to buy an additive for the coolant but the online manual for an 89 doesn't mention using any additive, just normal antifreeze so will top off with water.  Ran today and moved it around with no problems and gauges all seem good.  I've not had it on the road yet, just a lot of idling and a little off idle as I turned it around to do some work on it.  Thanks for the warnings.