<VV> Oil temp

[Joel McGregor]

Nope.
This is what I responded to:
Mark,
I think that you will find that modern cars use a 50/50 mix of coolant and
water with a 15psi pressure cap resulting in coolant temperatures running
up to  250 degrees F. And with these coolant temps, the oil temp also runs up
close to  these.
Bob Helt


Joel McGregor
817-994-8600


-------- Original message --------
From: MarK Durham <62vair at gmail.com>
Date: 11/7/2015 8:20 PM (GMT-06:00)
To: BobHelt at aol.com
Cc: Joel McGregor <joel at joelsplace.com>, Virtual Vairs <virtualvairs at corvair.org>, jay m <jaysplace at laserpubs.com>
Subject: Re: Oil temp

Joel, we are talking apples and oranges here. Bob is talking oil temps, not water temps.

Most good std dino oils are rated to 275F before they start to fail. So the numbers Bob mentions on std oil temps in the 220-240 range are pretty normal.

Water keeps the heads and cylinders in a std temp range for water pumpers, air cools the cylinders and heads in our corvairs, oil continues to lubricate and cool the internals by pressure in the bearings and by splash on the piston bottoms, rods, crankshaft, case, cam, lifters, and the rocker arm system in both engine types.
As engine temps, (water temps and pressures) have gone up, so have oil temps. Some cars, including the corvair engines, use a oil cooler to help keep the temps in line.

Mark Durham
Hauser, Idaho
62 Monza coupe Red/Red 4 speed

On Sat, Nov 7, 2015 at 4:57 AM, BobHelt--- via VirtualVairs <virtualvairs at corvair.org<mailto:virtualvairs at corvair.org>> wrote:





According to Castrol ideal oil temperatures for conventional oil  220-240
> F.  For synthetic the temps are 220-280 F.  Below  these low temps, the
> water and fuel in the oil does not evaporate.   One pound of gasoline
> produces one pound of water.  Cars with  chokes always add considerable
fuel
> to the oil when the chokes are  on.  The high recommend oil temps limit is
> where the additives in  the oil start to evaporate.  Base oil stock
> degradation begins at  significantly higher temperatures.
> Jim Davis


In a message dated 10/30/2015 8:26:32 A.M. US Mountain Standard Time,
virtualvairs at corvair.org<mailto:virtualvairs at corvair.org> writes:

Bob,  Is that something new?  I don't know of anything  that uses more than
a 195 thermostat and they generally run close to  that.  The hottest fan
switch I've seen is 230 and that seemed way too  hot.
Joel McGregor




In a message dated 10/26/2015 7:30:49 P.M. US Mountain Standard Time,
jaysplace at laserpubs.com<mailto:jaysplace at laserpubs.com> writes:

max temp  may run that high, but I bet that most of them stay a lot
closer to  thermostat opening temp most of the time - 190-200.

--
Jay  Maechtlen





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