[T3] Notch Running hot.

[Brian Fye]

Keith, I want your numbers.  Synthetic holds heat more than conventional
and thus your oil temps will be higher.  Also, I really don't care about
oil temps any more.  I care about head temps and exhaust temps... they tell
the real story.

On Tue, Jul 3, 2012 at 6:40 PM, Keith Park <topnotch at nycap.rr.com> wrote:

> Got the Notch out on the highway today for the first time in a while, and
> the first time with the Brad Penn semi synthetic.
> Well. once on the highway it started heating up faster than I left the
> Fulton county courthouse with new plates in my hands (GAA 2128, I don't
> think there are any engine builds that size so it should look OK on the
> crate)  Its running at least 20 degrees hotter than it did with the Dino
> oil, and the pressure is also much less. very much like what happened when
> I
> used the Amzoil nearly 25 years ago, only not nearly to that extreme.  Big
> changes in temperatures at the cooler with different RPM's too. I think
> those "8 little oil coolers" as Russ used to call the pushrod tubes rely on
> the oil to transfer the heat to them efficiently and the semi Synth just
> doesn't do that in the same way as the Dino.  At low RPM's it doesn't run
> too hot but at high RPM's when there is more flow the heat doesn't transfer
> as well and the oil remains hot when it gets too and leaves the cooler.
>
> Not sure if this is the whole picture but Im surprised that nobody else has
> seen this with the synth oils, maybe its because not many of us have oil
> temp gauges but wow, what a difference.  Of course the car still runs fine
> and without the gauge you'd never know its 20 degrees hotter.  Now I did
> the
> same apples to apples comparison with the T4 engine and did NOT see the
> same
> results. it MAY have run 5 degrees colder with the dino but that's in the
> noise really. maybe the different design or materials used tolerates the
> synth oil better.
>
> Im going to give the Notch a good going over tomorrow, pull the left tin,
> make sure nothing is living under there, check the timing etc. but nothing
> has changed since I had the Dino oil in there.  IT just ran hotter with the
> Brad Penn. 205 at the cooler rather than the 180 - 185 it should have been
> and the resulting oil pressure had the needle on the pin at idle coming off
> the highway, and that's not acceptable for what is basically a new engine.
>
> Keith
>
>
> Top Notch Restorations
> topnotch at nycap.rr.com
> http://www.a383ina68.addr.com/radiorest/main.htm
> 71 Squareback "Hothe"
> 65 Notchback "El Baja Rojo"
> 65 Squareback "Eggcrate"
> 87 golf "Winterat"
> 93 RX7 "Redstur"
>
>
>
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-- 
Brian Fye
Canyonville Christian Academy
541 839 4401 ext. 110
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