Some changes to the Doghouse
#31
Originally Posted by Doghouse
What are the inside dimensions of your gen box?
A radiator can be added to the outside, but I do like being able to heat up my engine during the winter.
#33
Originally Posted by Doghouse
I think those dimensions will work with a direct drive unit, and maybe a belt drive unit if it's placed properly. Do you prefer direct or belt.
#34
Originally Posted by Rev.Vassago
I prefer whatever is the hardest to start on fire.
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#35
Senior Board Member
Thread Starter
Join Date: Mar 2007
Posts: 1,009
I started with this much fuel today
![]() 5 hours later I ended up with this ![]() I estimate that with the new power demand on the genset, and having to run at a higher rpm. I now use 21oz of fuel per hour. When I first did this I only used 12oz per hour. Oh well, it better than ildeing the truck, of having to plan my stops around idleair locations.
#37
Senior Board Member
Join Date: Mar 2007
Posts: 935
What new power demand are you talking about? Also, how can you run at a higher RPM. Isn't your system set to run at a very specific RPM like mine?
Also, not sure if you know this but a postal scale is much easier to use doing tests like this and results can be accurately calculated at any time over a very short period.
#38
Senior Board Member
Thread Starter
Join Date: Mar 2007
Posts: 1,009
I'm satisfied with the fuel economy.
This unit has no preset anything. Spin the engine faster and the genhead puts out more voltage. With the new battery charger unit (30 amp) and the addition of the cooling fan to the box, I had to increase the rpm. I have it balanced now so when the AC unit is running it stays at 119 volts, and when the AC cycles off it runs at 129 volts. The battery charger works between 105v and 130v, so I had to make sure that when the AC cycled off, that it didn't kick off the battery charger overload switch. Very much a pain in the butt. I didn't think about a postal scale that would be very accurate, but I didn't have one to spill diesel fuel all over anyway.
#39
After our discussion on running the water lines to the truck and how the thermostat managed to be open, I called Cummins to ask them about it. They informed me that the thermostat is most definitely closed when the truck is shut off, but will open at 180 degrees, even with the truck shut off. So either you aren't running coolant through your engine, or your thermostat is broken and stays open all the time. I suppose it is possible that you are hitting a 180 degree temp on the coolant (and by the time it hits the gauge, it is down to 130 degrees), but somehow I doubt it.
Originally Posted by Doghouse
I didn't think about a postal scale that would be very accurate, but I didn't have one to spill diesel fuel all over anyway.
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