<VV> Hot

Hugo Miller Hugo at aruncoaches.co.uk
Thu Jul 19 04:25:19 EDT 2018


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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