[FC] FC False Alarm Idiot Light

[Ken Hand]

 It sounds like you need to do a little troubleshooting. The first thing you need to do is disconnect the oil pressure sending unit, turn the key on and see what light comes on. It should only be the the GEN/FAN light. If all OK there then you need to unplug the Alternator 2 wire connector and ground out the oil sending wire, only the TEMP/PRESS light should be on. If both are on at any time there is a wiring problem. You can even reach up and take out both lights from the dash to eliminate any indicating malfunction. Just make sure they go back in the correct spots when done. That is easily done by leaving the oil PSI wire off and turn the key on, with the GEN/FAN bulb lit, just put it in the correct hole. Plug in the oil PSI wire with the key on and do the same for that bulb.

 

Ken Hand
248-613-8586
www.corvairmechanic.com

http://s186.photobucket.com/albums/x118/vairmech/Viet%20Nam%20Pictures%201971/


 

 

-----Original Message-----
From: Kevin Clark kevin at kcvairbrush.com <kevin at kcvairbrush.com>
To: virtualvairs at corvair.org; corvanatics group <corvanatics at corvair.org>
Sent: Sun, Jul 10, 2011 11:43 pm
Subject: [FC] FC False Alarm Idiot Light


Has anyone had a false alarm with the idiot light coming on for no  
reason?

I was already on the road for 35 miles when my oil pressure and gen  
light came on in my FC. After pulling over I found the fan belt was  
still on and I had oil right up to the full line. I started the  
engine and it seems to be fine and I turn it around to head home.  
After about five miles I decided to turn around again and head to the  
Corvair show thinking there is nothing wrong. As I approached the  
exact same spot when I first saw the lights on, I watched and the oil  
pressure light came on again. I pulled over again, everything checked  
out fine and I drove it back home without any problem and the idiot  
light never came back on. They both still come on normally when I  
turn the key on to start the engine.

I have an internally regulated alternator on the 64 truck engine and  
checked the voltage and its fine. Once in a while the idler pulley  
whine when cold starting and I doubt that would have caused a false  
alarm, would it? I replaced the oil pressure switch for good measure.  
I did change the oil a week earlier. I have deep finned oil pan but  
have been one quart low before without any problem. I installed the  
lower heat shroud last week, could they have anything to do with it?  
Is there anything else I should check?

I'm looking forward to driving to the Van National next week and I  
would not have time to install an oil pressure gauge.
Kevin


------------------------------
Kevin G. Clark
kevin at kcvairbrush.com
www.kcvairbrush.com




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