<VV> Oil temp

[MarK Durham]

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> wrote:

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> 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 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
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> In a message dated 10/26/2015 7:30:49 P.M. US Mountain Standard Time,
> 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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