Drove my bus home today and I have NO HEAT!!

[KC10Chief]

All it was was the valve that I didn't see down by the drivers left foot. I opened that baby up and was nice and toasty in my bus!

[the_experience03]

I love the easy solutions!

I've just accepted the fact that the 6.6 is a cold blooded beast. It is parked until April, but I like to start it every once in a while just to keep things moving.

I know the t-stat is good because the old one I pulled out moved just fine (I put it in boiling water on the stove). I replaced it anyway just to be sure. I did that last year when we were actually driving the bus in the winter because we were converting it.

My final conclusion is that at temperatures below freeznig, the 6.6 turns into an air cooled engine. Radiator or not there is a lot of iron in that block without a hole lot of displacement. To back up this theory, the bus had a Webasto heater in it when I bought. It never worked and I took it out. I know the bus had been used in the mines so the webasto may well have just been used as a sort of remote block heater, but with under 100,000 miles, but over 5000 hours, I think this thing spent a lot of time doing the 24 hour idle thing. That leaves the webasto as just being there to keep the interior warm.

[Jarlaxle]

Originally Posted by oldog12

I don't know if ALL skoolies are plumbed the same, but my old one, the valves ONLY controlled the rear radiators/heaters, and the driver's compartment were ALWAYS tied in to the engine's cooling circuit.

Mine was like that--the dash heat was essentially what an F-700 truck would have, with the rear heat separate.

[crazycal]

Do you still have the webasto?

[the_experience03]

The webasto was a mess that I'm sure I could have gotten working with some diagrams and stuff, but it was in an inconvenient location and the cooling lines were being pulled out so I sold it for scrap. There was lots of copper in it between the motor windings and all the plumbing parts.

[Jarlaxle]

I've never seen a BB Conventional with an air-operated door, only TC's (including the 1998 TC1000 I drove) and All-Americans.