Can make the tool from flashing
to keep from being defeated by a tool I didn't have I cut a strip of aluminum flashing off a roll I had and cut teeth in one end of it. Seems to be the right thiness to get between the dial and the housing, and it actually worked. I managed to adjust the wheel where heat once again flows through the vents with the thermistor hooked up. I haven't ohmed it out for accuracy yet but I must be headed in the right direction at least, and hopefully problem solved. Take this one to the bank with a no cost repair, just a lot of head scratching wondering what the heck has happened thinking. Will keep you posted on my progress.
"Tell me and I will listen, Teach me and I will learn, Show me and I will accomplish, Involve me and I will succeed."
'84 300SD 256,000 Gold on Brown (Mileage Award)
'86 300E 246,000 Blue on Tan