Heater Blower Switch (sigh …)

[highcking]

On my 58 Roadmaster, the rotary blower switch has always worked fine. I’ve turned it maybe 5 time in 7 years. Today in cold weather I decided after warming up the car to check out the heater, which I worked on when the car was apart. Of course … the blower didn’t come on and the switch had a strange feel to it like something had worked loose. By wiggling back and forth a lot I got the blower to come on, so it’s working. But the switch is not and I plan to replace/repair with an eBay unit.

 

My question. I see the Dagmar knob has what looks like a set screw, but tries with various Allen wrenches did not seem to free the knob from the shaft. Is that in fact a set screw …. Or something else? I have to pull the top of the dash anyway to replace the speedo cable, so I’ll go after this switch at the same time.

 

Bill in Luray

[NailheadBob]

Bill,

 

The knob for the heater blower switch is held in place with a set screw, that is usually removed with a allen wrench, BUT I have seen a set screw that requires a small flat blade screw driver to loosen, use a mirror with a flashlight and look at the underside of the knob to tell, I hope this helps.

 

Bob

[Bill Shields]

Bob - that certainly could be. I will check tomorrow as you suggest and post what I find.

[NTX5467]

This also might be a situation where a picture via camera or phone (which can be enlarged) might come in handy?

[Bill Shields]

It was a standard hex set screw ... but very tiny, just 1/6". The set screw was much smaller than the opening provided for it. Thanks for all the replies!

[Bill Shields]

Sorry - typo. That's 1/16".