Monday, May 11, 2015

My Yarn Indicator II


Way back during 2011 I told you a story about my 1984 Ford truck, the air conditioning system seemed to be unreliable as I told you about here.   The hot and cold control is a vacuum device which has finally stopped working today in 2015.


The original yarn indicator installation required a removal of the glove box. Here is an alternative repair technique.  Remove the vacuum hose from the vacuum motor.


You can do this without needing any tools.  In other words do not remove the glove box, only crawl down beneath the dashboard.


Add some plastic lubricant such as Tri-Flow which is guaranteed to not harm plastics.  Ordinary oil would wreck it so be sure to use the correct type of lubricant.

Start the engine then re-connect the vacuum hose from the vacuum motor.  Operate the hot-cold control a few times.  If you are lucky as I was, the control switch will have become un-stuck and the vacuum motor will obey the hot-cold control reliably once again.

fin

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