Mazda-speed.com

Mazdaspeed Archive => Mazdaspeed Miata Tech issues => Topic started by: edgeandink on December 03, 2007, 04:59:32 AM



Title: Tranny is toast...again!
Post by: edgeandink on December 03, 2007, 04:59:32 AM
So at 35k I had my car in the dealership for warranty work.  I had grinding in 3rd and 4th.  Seems the 4 bolts on the shift plate came loose, which is common, and the gears were not being positively engaged.  3rd and 4th were pretty chewed up and some other small stuff was bad.  Well the dealership rebuilt the trans and I got the car back.  3rd was really hard to get into and 4th could be stubborn as well after the rebuild.  Here I am 900miles after the rebuild and 3rd and 4th took a crap again.  I think a guide pin broke for the third and Im not sure what the hell happened to 4th.  I know one other member had the same problem and an acquaintance of  mine had a 04 and had it in three times within the first 3000 miles for the tranny.  So are these trannys worth a crap or what?


Title: Re: Tranny is toast...again!
Post by: LateralSpeed on December 03, 2007, 05:23:47 AM
I've had no trouble at all with 1-6 but ever since I got my car with 17k on it i've had trouble with reverse. Sometimes when I start her up then try to go into rev with the clutch fully compressed it will grind while going into gear and sometimes just won't go in even when it feels like it should be in gear. I really have no idea what's wrong with mine, but I was wondering the same thing as you, is there a flaw with our trans?


Title: Re: Tranny is toast...again!
Post by: AxeEfffect69 on December 03, 2007, 05:30:07 AM
ive had that problem with my reverse, it wont grind, but there are times it wont go into gear, or it will feel like it went in although it really didnt.  ive had this problem since i got the car at 9k miles, and im at 21k now.  a couple people have told me its normal, but its kinda rare/random so i havent talked to a dealer about it cause chances are it wouldnt happen when they went to go try it.


Title: Re: Tranny is toast...again!
Post by: edgeandink on December 03, 2007, 05:36:36 AM
Rev. being a pain in the ass is normal.  It has no synchro and is typically a straight cut gear.  Hence why it whines so loud when in reverse.


Title: Re: Tranny is toast...again!
Post by: LateralSpeed on December 03, 2007, 05:41:16 AM
Rev. being a pain in the ass is normal.  It has no synchro and is typically a straight cut gear.  Hence why it whines so loud when in reverse.

Ahh, thank you, that makes sense. What a local tranz shop told me is to start the car, put the shifter in neutral and decompress the clutch, then recrompress it and go into second and then directly to reverse. This seems to help quite a bit and when I do that it usually goes into rev with no problems, but it doesn't always work.


Title: Re: Tranny is toast...again!
Post by: SilverMiataRacer on December 03, 2007, 12:02:30 PM
The easiest thing to do about reverse is to put it back in neutral and let the clutch out, step on the clutch again and go into first and then go back into reverse.

There are a lot of the 6 speeds out there and it hasn't been noted that they are a big issue.  They aren't as nice as the 5 speed but they aren't noted to fail.


Title: Re: Tranny is toast...again!
Post by: Garnetmica on December 03, 2007, 12:30:56 PM
My dad always told me to throw the clutch in, shift from 1-2 to line the syncros up and it pops right into R every time.


Title: Re: Tranny is toast...again!
Post by: barnold08 on December 03, 2007, 02:01:21 PM
My dad always told me to throw the clutch in, shift from 1-2 to line the syncros up and it pops right into R every time.

yea thats what my dad always told me too.. it becomes a habit if you do it alot. when i get in my car now i put the clutch in and shift 1to 2 and then to first or reverse depending on the direction i'm going.. that and if any of you have trouble with your clutches id take a look at your master slave cylinder i thought my clutch was going out and i couldn't shift. and it was the slave cyl.


Title: Re: Tranny is toast...again!
Post by: mikethemachinist on December 03, 2007, 11:43:34 PM
I have had the reverse problem as well.  Worked better when I had the bushings replaced, but has started again.  The shift to neutral, 1st, then reverse works well for me.


Title: Re: Tranny is toast...again!
Post by: SilverMiataRacer on December 04, 2007, 12:02:36 AM
I have had the reverse problem as well.  Worked better when I had the bushings replaced, but has started again.  The shift to neutral, 1st, then reverse works well for me.

That is not a problem but a normal thing.  The reverse is not a gear with syncros so you need to help it get into the gear.  Usually going into another gear first will be the solution.


Title: Re: Tranny is toast...again!
Post by: MSMemt on December 04, 2007, 12:10:10 AM
They aren't as nice as the 5 speed but they aren't noted to fail.

Ok... that's what I initially heard.  But then some people on these forums claim the 6speed is stronger.  SO... which tranny is the stronger one?


Title: Re: Tranny is toast...again!
Post by: SilverMiataRacer on December 04, 2007, 12:19:00 AM
The MSM 6 speed is supposed to have shot peened gears.


Title: Re: Tranny is toast...again!
Post by: MSMemt on December 04, 2007, 12:25:42 AM
yea... but aside from helping with wear and tear, how do the two compare when it comes to putting down over 300whp?


Title: Re: Tranny is toast...again!
Post by: SilverMiataRacer on December 04, 2007, 12:46:35 AM
Don't know, the word is the 6 speed is stronger and ours has stronger gears but there is no real proof that I know of.


Title: Re: Tranny is toast...again!
Post by: burnone on December 05, 2007, 06:05:40 AM
For those that have a hard time with reverse. Try putting the car into 1st gear, let the clutch out just so the car begins to rock forward. Push clutch to the floor, shift directly into reverse and it should slip right into gear every time. I've tried this on other import trannys as well. This tip has always worked for me.


Title: Re: Tranny is toast...again!
Post by: haverty on December 05, 2007, 12:13:38 PM
yea... but aside from helping with wear and tear, how do the two compare when it comes to putting down over 300whp?

boostedNB is using a 6 speed i believe, give him a ring. he should know better then anyone whats going down :D


Title: Re: Tranny is toast...again!
Post by: SilverMiataRacer on December 05, 2007, 12:34:03 PM
yea... but aside from helping with wear and tear, how do the two compare when it comes to putting down over 300whp?

I just reread this.  Shotpeening isn't a wear and tear preventative, it's a strengthening procedure.  Makes metal more resistance to shock  loads.


Title: Re: Tranny is toast...again!
Post by: john chorgo on December 05, 2007, 04:45:11 PM
When the white plastic bushing at the base of the shift lever falls off it makes the shifter very loose & sloppy. Putting the car in reverse becomes difficult. It feels like it almost does not want to engage even though the shift lever is pushed all the way back in reverse. Some times it will even grind. It is easy to fix the shift lever bushing problem. You place a 3/8" washer 20mm wide by 2mm thick with a 10mm hole in it at the bottom of the hole that the shift lever goes in so the bushing on the end of the shift lever can not fall off any more. Now that I have placed a washer into the hole below the shift lever bushing so the bushing does not fall off anymore shifting is very precise. Now it slips into reverse very easy every time & there is less play in all the gears  :lock:
.
.
.
(First) go to Home depot & get a 3/8" washer it should be 20mm wide with a 10mm hole in it 2mm thick.
(http://f10.putfile.com/thumb/8/22722521621.jpg)
.
.
.
(second) remove the center consol http://www.mazda-speed.com/forum2/index.php/topic,691.0.html
.
.
.
(third) remove the four bolts from the shift lever rubber boot & the three bolts from the small rubber boot underneath it as seen in these pictures
(http://mazda-speed.com/map/msm-forum-pics/stick1.jpg)
(http://mazda-speed.com/map/msm-forum-pics/stick2.jpg)
.
.
(fourth) remove the shift lever from the transmission as seen in these pictures
.
.
(http://www.mazda-speed.com/map/msm-forum-pics/stick4.jpg)
(http://www.mazda-speed.com/map/msm-forum-pics/stick5.jpg)
.
.
(fifth) place the 3/8" washer that is 20mm wide x 2mm thick with a 10mm hole in it into this hole
.
(http://www.mazda-speed.com/albums/shift-lever-turret/shift_lever_2.jpg)
.
.
this will stop the white plastic bushing at the base of the shift lever from falling off down into the hole here is a five page thread for more information if you need it. > http://www.mazda-speed.com/forum2/index.php/topic,321.0.html


Title: Re: Tranny is toast...again!
Post by: MSMemt on December 05, 2007, 06:27:14 PM
SMR, John Chorgo; both good info, thanks.  I'll have to do the bushing thing... i feel like my shifter has got sloppy over the years... and getting in reverse is a big PITA for me... i'll think i'm in, but as i start letting out the clutch grrrriiiinnnnddddd.  can't wait to see what my tranny fluid looks like  :o


Title: Re: Tranny is toast...again!
Post by: LateralSpeed on December 05, 2007, 07:31:58 PM
At what mileage should you change your tranny fluid?


Title: Re: Tranny is toast...again!
Post by: john chorgo on December 05, 2007, 10:46:36 PM
SMR, John Chorgo; both good info, thanks.  I'll have to do the bushing thing... i feel like my shifter has got sloppy over the years... and getting in reverse is a big PITA for me... i'll think i'm in, but as i start letting out the clutch grrrriiiinnnnddddd.  can't wait to see what my tranny fluid looks like  :o
that is exactly what happens when the bushing falls off & what putting the washer under it fixes. I have a feeling there are a lot of mazdaspeeds out there with bushings that fell off.


Title: Re: Tranny is toast...again!
Post by: john chorgo on December 05, 2007, 11:12:11 PM
So at 35k I had my car in the dealership for warranty work.  I had grinding in 3rd and 4th.  Seems the 4 bolts on the shift plate came loose, which is common, and the gears were not being positively engaged.  3rd and 4th were pretty chewed up and some other small stuff was bad.  Well the dealership rebuilt the trans and I got the car back.  3rd was really hard to get into and 4th could be stubborn as well after the rebuild.  Here I am 900miles after the rebuild and 3rd and 4th took a crap again.  I think a guide pin broke for the third and Im not sure what the hell happened to 4th.  I know one other member had the same problem and an acquaintance of  mine had a 04 and had it in three times within the first 3000 miles for the tranny.  So are these trannys worth a crap or what?
I had a similar thing happen to my transmission. First my shift lever was loose & sloppy & difficult to engage into reverse. second my synchronizers went bad around 40K so I had them replaced under warranty. third my synchronizers went bad again around 48K so I had the transmission replaced under warranty. I'm taking a guess maybe these problems have something to do with the 4 bolts on the shift plate coming loose or with the bushing falling off the base of the shift lever or a combination of both.


Title: Re: Tranny is toast...again!
Post by: 210mspd on December 06, 2007, 03:05:25 AM
At what mileage should you change your tranny fluid?
   30k or when you feel it


Title: Re: Tranny is toast...again!
Post by: barnold08 on December 06, 2007, 03:43:29 AM
i really like those red and black seats..  are those factory on msm? at the car shop i work at we can leather upgrades but not vinyl.


Title: Re: Tranny is toast...again!
Post by: LateralSpeed on December 06, 2007, 04:27:48 AM
At what mileage should you change your tranny fluid?
   30k or when you feel it

When you feel it? Does it get clunky or something?


Title: Re: Tranny is toast...again!
Post by: 210mspd on December 06, 2007, 11:54:38 AM
sorry, feel like it. Ive been a little stupid lately, cant seem to focus on....... :lol:


Title: Re: Tranny is toast...again!
Post by: LateralSpeed on December 06, 2007, 05:43:06 PM
lol, oh alright well that makes a little more sense to me heh.


Title: Re: Tranny is toast...again!
Post by: TadGhostal on December 06, 2007, 09:58:20 PM
i really like those red and black seats..  are those factory on msm? at the car shop i work at we can leather upgrades but not vinyl.

Those are the stock cloth seats.


I changed my tranny fluid at 30k with Redline MT90 and noticed a huge improvement with shifting, so much smoother.  Since the change I haven't had a single issue getting it into reverse either, it goes right in every time, no more shifting to 1st or 2nd or moving forward a few inches.  I didn't believe the hype before, but figured I was about due...wish I had done it 25k miles ago.  Best $22 I've spent on the car.


Title: Re: Tranny is toast...again!
Post by: Bipestuff on December 21, 2007, 05:24:41 PM
Hmmm...  I have had shifting issues, mainly 3rd & 5th gears since I changed my tranny fluid for the first time at 50k miles.  I used Mobil 1 75w90, but I think it is more for gear lube than tranny - that may be why I'm getting the poor response.  I've ordered Redline 75w90NS and going to try that, much of the research I did says that's a good choice.  Anyone else tried that?  Hope I don't have the tranny going bad, but based on just changing the fluid, I'm assuming it's that.  I always have had a bit of trouble getting into third gear when trying to shift fast, maybe just me - hmmmm.


Title: Re: Tranny is toast...again!
Post by: SilverMiataRacer on December 21, 2007, 06:44:59 PM
That isn't a tranny fluid either, it's a rear end lube.  Your better off with the MTL or the MT-90


Title: Re: Tranny is toast...again!
Post by: roymike on December 21, 2007, 09:38:08 PM
Tried MTL this last oil change , HUGE difference in shifter feel . Much smoother shifting , im never putting anything else in my tranny.  drivingss


Title: Re: Tranny is toast...again!
Post by: mprhead5 on December 22, 2007, 12:19:48 PM
our gears are supposed to be shot peined for hardening.

I too use the into first then back into reverse because somtimes its hard to get into. Thats a common manual trans thing though and I don't view it as an issue