<VV> Hot

Thu Jul 19 11:24:02 EDT 2018

If you loose the fan belt and must drive a short distance, the
generator/alternator/fan light will be on.  The oil./temperature light will
be off, engine running.  Open the heater full on and turn the heater fan
full on.  Drive conservatively until you find s safe place to pull off the
road.. Should the oil/temp light come on stop immediately and what about 30
minutes before starting the car and proceeding. I would never drive more
than absolutely necessary with out a fan belt.  If you don't carry a spare
belt and a 9/16" combo wrench, you should  starting, NOW!.   It only takes
one severe case of overheating to start the process of loosing a valve seat.
Jim Davis

On Thu, Jul 19, 2018 at 3:25 AM, Hugo Miller via VirtualVairs <
virtualvairs at corvair.org> wrote:

> Temp or generator light? Or both? I read in a handbook somewhere that you
> can drive these without a belt for short distances - ten minutes at a time
> or something.
>
>
>
> -----Original Message----- From: Ignacio Valdes via VirtualVairs
> Sent: Wednesday, July 18, 2018 8:19 PM
> To: Paul Fox
> Cc: Virtual Vairs
> Subject: Re:  Hot
>
> When Lisa my 64 threw a belt the light absolutely came on. Trouble was it
> was an elevated freeway and I could not exit.
>
> On Wed, Jul 18, 2018 at 7:38 AM, Paul Fox via VirtualVairs <
> virtualvairs at corvair.org> wrote:
>
>  In my 42 years of experience with Corvairs I have never seen a temp light
>> come on. I don't know what temp it will come on but I have lost many fan
>> belts over the years and it never came on multiple engines.  It sometimes
>> did serious damage to the engine. But you are correct it will detonate
>> badly when it's to hot and will smoke from under the top shroud when you
>> shut it down. Another possibility is the wiring to the switches is
>> touching
>> ground somewhere So check that. Then put a head temp gauge on it and know
>> for sure. I've also seen replacement thermostat's fail in the closed
>> position and stay that way. That destroyed the engine too. Change the oil
>> if in doubt it's cheap insurance.Paul
>>     On ‎Tuesday‎, ‎July‎ ‎17‎, ‎2018‎ ‎11‎:‎33‎:‎33‎ ‎PM‎ ‎EDT, FrankDuVal
>> via VirtualVairs <virtualvairs at corvair.org> wrote:
>>
>>  Yes, to the below, and , did you hear any pinging? Usually that is the
>> first sign of overheating with the higher compression engines (102, 110,
>> 140, 150, etc).
>>
>> Back in the day with Dino oil we didn't change the oil at the first
>> overheat lamp.....:-D
>>
>> Frank DuVal
>>
>>
>> On 7/17/2018 4:25 PM, Jim Simpson via VirtualVairs wrote:
>> > I don't see any particular reason to change the oil.  Synthetics like
>> Mobil
>> > 1 are good to pretty high temps --  according to their web site, the
>> Mobil
>> > 1 oils can go to 500 F!  I suspect that's a "flash temp", not sustained
>> > driving, but unless you melted a bearing or something, I doubt you've
>> hurt
>> > the oil.
>> >
>> > The bigger issue is why did you get a overtemp warning light?  Even at
>> 108
>> > outside temp, the engine shouldn't overheat at any reasonable highway
>> > speed.  Chevrolet tested the engines during development at higher temps
>> and
>> > speeds than that.
>> >
>> > So check the cylinder head flashing, the fan belt, oil cooler to be sure
>> > there's nothing blocking air flow.  And don't overlook the cylinder head
>> > temp switch.  They've been known to go bad and trigger at lower than
>> > specified temperatures.  (Do you have a cylinder head and/or oil temp
>> > gauge?)
>> >
>> > Jim Simpson
>> > Group Corvair
>>
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