my 1st foray into the ATX gt - Mazda MX-6 Forum
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post #1 of 41 (permalink) Old 2-1-13, 18:06 Thread Starter
 
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my 1st foray into the ATX gt

4th 1g GT but this is my 1st atx car. Happy to have all other atx'ers chime in with opinions / issues / fixes / etc. as i'm looking for bug-killers

I like it so far. It has good response time(s) during upshifts compared to other auto's i've driven, Hondamatics, Integra, Nissan and a few others. I'm strongly considering a larger cooler but before i get one installed i'm considering running A/C delete / pulling the condenser (evaporator?) and incorporating a larger cooler in that same bay.

Any comments that i could benefit from don't hesitate!

I believe in reincarnation... just the other day i saw an old lady turn into a driveway.
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post #2 of 41 (permalink) Old 2-2-13, 5:01
 
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Have a read through the info on A-Team

Just adding a cooler and adjusting your pressure cable will keep the ATX going well with mild power ups.
To adjust your pressure cable to maximum just rotate your throttle to WOT and then adjust the pressure cable so that there is no slack.
Also if you're going to add a cooler go right ahead and fit the largest one you can find at your auto parts store.
Your car may take another few minutes of driving to go into overdrive after start up but it's worth it for the protection.

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.
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post #3 of 41 (permalink) Old 2-2-13, 7:14

 
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Don't forget it has essentially got a G-series open diff centre.

It's worth being a little bit careful. I am not sure whether a G series LSD would fit. Maybe something worth considering if this is a long term thing.

84 626 sedan FE SOHC turbo, FE3 on hold, Toyota E58 conversion under way - slowly!
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post #4 of 41 (permalink) Old 2-3-13, 0:52 Thread Starter
 
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Yes on the G series box. I'm debating on whether to intentionally burn up this atx to get the swap over with - or - baby the bitch with a phat cooler and put up with it not being as fun as my mtx.

The A-Team link is a good one.

I believe in reincarnation... just the other day i saw an old lady turn into a driveway.
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post #5 of 41 (permalink) Old 2-3-13, 15:21
 
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I'll bet it won't be easy to blow it up if you change the fluid, regularly. I've read of auto grannies with over 250k miles on them.

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post #6 of 41 (permalink) Old 2-3-13, 16:14

 
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You can still burn out the clutch packs and wear out the brake bands.
Its just an NA trans that's got some extra clutches to deal with some extra torque.

84 626 sedan FE SOHC turbo, FE3 on hold, Toyota E58 conversion under way - slowly!
84 626 sedan RF diesel, a slug but you get 6.0L/100km (39MPG)
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post #7 of 41 (permalink) Old 2-3-13, 18:57 Thread Starter
 
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Quote:
Originally Posted by automan View Post
I'll bet it won't be easy to blow it up if you change the fluid, regularly. I've read of auto grannies with over 250k miles on them.
I just went for a pre-Superbowl jaunt. Man this car gets up out of it's own way. 150k on it now and i know i can milk it for another 50k or more no problem. But the forward clutch is a little noisy, so is the torque converter above 2k rpm. Still doesn't effect low speed out of the gate nor does it effect 4-5k rmp boost.

But i could still do some damage to it. lol.

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post #8 of 41 (permalink) Old 2-3-13, 20:27
 
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Whatever you do, don't back down a slope in neutral. I used to do that with my 73 RX3 (down my driveway) and then shift into drive after entering the street. When I bought the MX in 97, I did the same thing, only to find that the tranny would act like it was slipping. Shifting into park and then drive would cure the problem but I started backing up in reverse and leaving it there until I needed to shift into drive (skipping the neutral coasting). After eliminating the old RX3 habit, the tranny never gave me a problem again. That was 15 and a half years ago.

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post #9 of 41 (permalink) Old 2-3-13, 23:11 Thread Starter
 
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I'm already working on a mental map of all the idiosyncrasies. It has a few of them. If i shift into S from N it will not often engage well and slip. If i shift into D from N it will sometimes not get the gear completely, and a little jiggling of the selector will grab it. Reverse takes 1.5 seconds to engage as opposed to the 1 second that it's supposed to, according to the WSM on engaging gear times.

It's the light whines it makes in any forward / reverse gear that i don't like. Then when i'm boosting or even just increasing road speed the converter sounds like a clutch fan. Does your atx sound like a clutch fan when you're getting above 2k in any forward gear?

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post #10 of 41 (permalink) Old 2-4-13, 23:19
 
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...not that I notice. Sometimes when I boost, it studders, slightly but it doesn't do that if boost stays below, say 10 psi, so it could be that the extra boost is "shocking" the tranny? I could pop the tranny in neutral at a light and then into drive without any issues. My tranny has a few more miles on it than yours does but I do a drain and fill every 2 years (6000 miles or so), so it is very strong. I've been leaving it in "sport" mode, lately.

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post #11 of 41 (permalink) Old 2-5-13, 7:21
 
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That is likely the 2-4 brake band slipping, try adjusting the band tension and pressure cable.

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.
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post #12 of 41 (permalink) Old 2-5-13, 16:11 Thread Starter
 
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Quote:
Originally Posted by mx_masta View Post
That is likely the 2-4 brake band slipping, try adjusting the band tension and pressure cable.
That was the other thing the manual stated... any or all of the accumulators would cause some of it's issues or, the 2-4 band adjustment. If you have experienced doing this adjustment, do you have any personal knowledge of what to look for / look out for?

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post #13 of 41 (permalink) Old 2-6-13, 0:34
 
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You'll need a low range torque wrench, like a 1/4"or 3/8" drive that can be set as low as 78-95 in-lbs (that's inch pounds not foot pounds)
These sizes are hard to find and are usually way more expensive than a general use 1/2" drive one.

Your typical 1/2" drive torque wrench does not go low enough in setting.

Doing it is actually really easy;
Drain fluid,
Drop pan,
Loosen locknut,
Adjust band to 78-95 in-lb (better to aim on the high end)
Tighten locknut to 18-29 ft-lb,
Fit new filter,
Refit gasket and pan,
Have a beer.
Refill fluid.

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.

Last edited by mx_masta; 2-6-13 at 0:38.
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post #14 of 41 (permalink) Old 2-6-13, 4:21 Thread Starter
 
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Excellent how-to. I happen to have a 3/8" torque wrench with a low range and it's even been calibrated very recently. It's unfortunately up at the girlfriends house right now. That's something on my soon to-do list and i will incorporate a fluid and filter change while i'm at it. The factory bible is a nice standby during the adjustment and tightening process most certainly, and thanks for the 1st hand input.

Something came to my attn while investigating the cooling fan, and why it doesn't run as intended. It's currently hot-wired (grounded) and i want the fan to have a longer life than leaving it that way will give it. After testing / swapping fuses and relays, i was looking at the wiring schematic and noticed a resistor that the mtx's don't have. Anyone know where this particular bugger is located?


I believe in reincarnation... just the other day i saw an old lady turn into a driveway.
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post #15 of 41 (permalink) Old 2-6-13, 10:16
 
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That resistor is on the radiator fan bracket, down near the bottom of the radiator.

VF12 - VJ11 hybrid http://www.mx6.com/forums/1g-mx6-for...ic-inside.html 5 1/4" VDO splits in custom door trims http://www.mx6.com/forums/1g-mx6-gen...cs-inside.html, 12" sub in custom boot/trunk http://www.mx6.com/forums/1g-mx6-app...cs-inside.html 2.5" cat back, 18"x12"x3" FMIC.
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