Mazda Miata: Transmission tunnel heat

In article <fOLCc.34425$srv.hcvlny.cv.net>,
"J.B." <NET> wrote:
 

Replace the two rubber inner shift boots (under the cosmetic vinyl
boot). Instructions in the miata.net Garage section.

--
Lanny Chambers, St. Louis, USA
'94C
the alignment page:
http://www.hummingbirds.net/alignment.html

Thanks for the tip.

Lanny Chambers wrote:
 

It seems some miatas will still have an issue with this even with good
boots, not sure why the difference. One possibility is that the clearances
are so tight between tranny and tunnel side wall on some cars that it still
transfers thru. I believe it could be producing extra heat from old crappy
and possibly low transmission fluid. I would highly suggest that you drain
and refill the tranny with Redline synthetic or equal. This will generally
smooth the shifting action as well.

Chris
92BB&T

"Lanny Chambers" <net> wrote in message
news:news.prodigy.com... 

In article <supernews.com>,
"Chris D'Agnolo" <net> wrote:
 

Next thing to check is the heater air mix door adjustment. The shop
manual says to set it so it opens fully, but on many Miatas that means
it won't close all the way. Remove the glovebox, wiggle the temp lever,
and it's obvious what needs adjusting. It's a 10-minute job.

--
Lanny Chambers, St. Louis, USA
'94C
the alignment page:
http://www.hummingbirds.net/alignment.html

"Chris D'Agnolo" <net> wrote:
 

Maybe driving style. Having just driven a few thousands of miles
with torn boots, I find that the amount of heat generated by the
gear box is much larger in low gears than in higher ones. It
confirms the usual assumption that gear box power losses are
almost nil in 4th, but considerable in 1st.

Leon
 

--
Leon van Dommelen Bozo, the White 96 Sebring Miata .)
To reply to me, the word Miata must be in the subject.
EXIT THE INTERSTATES (Jamie Jensen)

In article <com>,
net (Leon van Dommelen) wrote:
 

Telegram for Leon of Florida from William of Ockham:

The higher the road speed, the more cooling air flows between the
transmission, catalytic converter, etc., and the tunnel.

--
Lanny Chambers, St. Louis, USA
'94C
the alignment page:
http://www.hummingbirds.net/alignment.html

In article <supernews.com>,
"Chris D'Agnolo" <net> wrote:
 

Someone mentioned that they'd gotten a "lemon" 626 (It was never made
clear what the year was, but the conversation we were having centered
around my '82), and one of the "signs of lemonhood" this guy complained
most (and quite bitterly) about was the amount of heat transferring
through the passenger side floorboard and tranny tunnel area. I've
experienced some of that in the 626 - The heat can get *INTENSE*,
sometimes enough to make reaching for the shifter and coming up with a
handful of metal shaft rather than the plastic knob QUITE unpleasant, to
say the least. I'd been working on the idea that it was somethign in the
tranny "being sick", and somehow dumping a mega-mess of heat into the
metal of the shift lever, and was worried about what might be getting
ready to die on me. The guy I was talking to claimed that the heat was
coming from the two cats that are right under the passenger floorboard.
Since hearing about this, I've been trying to figure out a way to
insulate between the cats and the floorboards (There's already a heat
shield - pretty cheesy, but at least it's there) in a way that won't get
rattled loose/blown away/pulled out, or otherwise "lost", or stop
working once it gets soaked (which it will, no question about that, when
wet season rolls back around again).

Perhaps this same thing is applicable to the Miata?

--
Don Bruder - net - New Email policy in effect as of Feb. 21, 2004.
I respond to Email as quick as humanly possible. If you Email me and get no
response, see <http://www.sonic.net/~dakidd/main/contact.html> Short
form: I'm trashing EVERYTHING that doesn't contain a password in the subject.

Lanny Chambers <net> wrote:
 

Telegram for Lanny:

1) I have seen authorative sources that put the gearbox losses
at a significant percentage in lower gears and at *zero* for
fourth. Unless you have solid data to show those sources wrong,
I have to go with the established authorities.

And it unavoidably implies that heat generated is an order of
magnitude smaller in 4th than in 1st. Unless you have solid data
to show the 1st law of thermo wrong, of course.

2) I did not say that the gearbox *was a bit cooler*, I said
that "the amount of heat *generated* by the gear box is *much
larger* in low gears than in higher ones." This was based on
the observation that the gearbox's excess temperature was
*an order of magnitude smaller*. The difference in driving
speed cannot explain that.

3) Moreover, I am sorry to have to say that the high gear cool
gearbox was with the top up (interstate). The low gear was
with the top down. Little cooling air passes through the
top. That there would be a big cooling flow along the
bottom of the car seems to violate both mass conservation
(of course, maybe some air was converted into energy,
raising temperature,) and the fact that the flow would
likely separate rather than enter the tunnel to a significant
amount.

4) Please do not use mumbo-jumbo voodoo magic like "Ockham's Razor"
and other nonscientific claptrap on me. While even scientists
use that sort of thing to win discussions, they have absolutely
no evidential basis. Quite the converse; if you think that
the simplest/shortest/whatever solution is the right one, you
simply indicate that you have absolutely no idea what has been
happening in science in the 2000 years since Aristotle.

Leon

--
Leon van Dommelen Bozo, the White 96 Sebring Miata .)
To reply to me, the word Miata must be in the subject.
EXIT THE INTERSTATES (Jamie Jensen)