VOTE: Your Transmission 6MT? Butter smooth? -or- Problems? - Page 7 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Ultramaroon · 02-24-2015, 01:54 AM

Quote:

Originally Posted by T-Steve

I waited until warm weather arrived to see if my transmission 2nd gear crunch improved. It has.

Below about 50 F I get the second gear crunch consistently. Now that it's warm it almost never happens. I've only got 3000 miles on my '14 BRZ so I'll let it keep on breaking in.

Give it another 5K for break-in. Not joking. Gets better.

Sleepless · 02-24-2015, 05:01 PM

Voted "Smooth as Butter", but, after it is warmed up. This box definitely does not like to be cold. Tried the Motul 300, mainly for better quality at the track; no difference when cold.

RobertPaulson · 02-24-2015, 07:05 PM

Quote:

Originally Posted by Entroper

The tolerances are tight with the AZ6. There is no mechanical fix for the 2nd gear crunch, the fix is your technique. Go slower when it's cold. Synthetic oils can make it a bit easier, but you have to slow yourself down. I've owned a 6-speed Miata, RX-8, and two 86 twins, all with some version of the AZ6, and all of them were tight going into 2nd when cold.

My buddy has ruined second gear in his rx-8 because he slams every gear shift like he's in a fast and furious movie.

as far as my twin, the usual notchyness with 1st/2nd when cold. My old service manager told me at 3000k miles when i complained about the transmission that i just needed to give her a real good rowing/thrashing once warmed up. Sure enough i did that, then changed the fluids and its been great since and only gets better with miles.

continuecrushing · 02-24-2015, 07:54 PM

there should be options added to the poll about difference AFTER switching fluid

chas3wba0 · 02-24-2015, 08:27 PM

Quote:

Originally Posted by tennisfreak

2nd gear when cold has always been notchy.

4th gear in high RPM's causes slight crunch.

Ditto. Motul Gear 300 (or just the tranny fluid change in itself) at 16k miles solved both these issues.

The only few times that I have ground the synchros in this car have been due to me releasing the clutch too soon (first MT car). Hasn't happened at all since I've become familiar with the car.

Kostamojen · 02-24-2015, 11:10 PM

No issues here, just a little notchy when cold, and its better than my other Subaru transmissions have been.

Replaced the fluid IMMEDIATELY when I purchased the car thats the best thing you can do for it.

Mars2 · 02-25-2015, 02:39 AM

Butter smooth.
30 year's of manual.
In my country it used to be almost impossible to get automatic and if you had one good luck to sale!
We get our driving license exam on a Manual. So if you make your gear grind you can go back for an extra 20 hours of teaching and register for next exam session.

Now a day's their are a few automatic specialy those double clutch stuff.

misooscar · 03-29-2015, 11:19 PM

I was complaining too early...transmission is now butter smooth at 7K, and a fresh Motul Gear oil 300, 4th gear grind is gone

Sent from my SM-N900T using Tapatalk

Wise · 03-29-2015, 11:35 PM

I love the 6MT in the 86.

Only gripe is that the shift from 6 to 4 can be a bit awkward.

Also on upshift it can be a bit noisy. Hearing a slight clank noise. But normal on a cheaper car.

EvoPrecision8 · 03-29-2015, 11:46 PM

When my car sits for a few days, especially when cold(ish), I can literally barely get it to go into 2nd. It will grind no matter how gentle and slow I am. Sometimes I can barely get it to go at all. I'm hoping it will improve after I swap the fluid. I'm just waiting to get all the initial wear particles out because the car is only at about 1200km right now. After warm though, it's pretty buttery for the most part.

Pkush · 03-30-2015, 12:59 PM

I wanna re-vote. at 14k I'm getting grinds every time I downshift into 5th.

PA-86 · 03-30-2015, 01:14 PM

I have to be very gentle with my 6th to 5th downshift or I'll get a rough grinding sound. Just started recently, currently running Redline in the trans and diff. Otherwise the gear box is great.

Pkush · 03-30-2015, 01:46 PM

Quote:

Originally Posted by PA-86

I have to be very gentle with my 6th to 5th downshift or I'll get a rough grinding sound. Just started recently, currently running Redline in the trans and diff. Otherwise the gear box is great.

Same Exact thing for me. Going to take it to dealer.

PA-86 · 03-30-2015, 06:02 PM

Let me know what they say.

View Poll Results: What is the state of your 6MT gearbox?
Butter smooth and only getting smoother	187	58.62%
Problems, grinds, synchro issues, etc...	132	41.38%
Voters: 319. You may not vote on this poll

02-24-2015, 05:01 PM	#86
Sleepless Senior Member Join Date: Apr 2014 Drives: 2014 BRZ Location: Redmond, WA Posts: 639 Thanks: 299 Thanked 392 Times in 229 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Voted "Smooth as Butter", but, after it is warmed up. This box definitely does not like to be cold. Tried the Motul 300, mainly for better quality at the track; no difference when cold. __________________ Pete 14 Track BRZ (Build Thread) cmslaptimer.com

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02-24-2015, 07:54 PM	#88
continuecrushing Join Date: Mar 2013 Drives: 2013 Firestorm FRS Location: Lake Elsinore, CA Posts: 2,707 Thanks: 1,231 Thanked 2,144 Times in 1,003 Posts Mentioned: 73 Post(s) Tagged: 2 Thread(s)	there should be options added to the poll about difference AFTER switching fluid

02-24-2015, 11:10 PM	#90
Kostamojen Senior Member Join Date: Oct 2011 Drives: 1993 Impreza w/ WRX Swap + FWD! Location: Roseville, CA Posts: 2,071 Thanks: 217 Thanked 949 Times in 499 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	No issues here, just a little notchy when cold, and its better than my other Subaru transmissions have been. Replaced the fluid IMMEDIATELY when I purchased the car thats the best thing you can do for it.

02-25-2015, 02:39 AM	#91
Mars2 Senior Member Join Date: Sep 2012 Drives: GT86, AUDI RS2, VW T5 R32 Vortech Location: France Posts: 275 Thanks: 1 Thanked 72 Times in 53 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Butter smooth. 30 year's of manual. In my country it used to be almost impossible to get automatic and if you had one good luck to sale! We get our driving license exam on a Manual. So if you make your gear grind you can go back for an extra 20 hours of teaching and register for next exam session. Now a day's their are a few automatic specialy those double clutch stuff.

03-29-2015, 11:19 PM	#92
misooscar Senior Member Join Date: Apr 2014 Drives: Posts: 224 Thanks: 182 Thanked 40 Times in 35 Posts Mentioned: 3 Post(s) Tagged: 1 Thread(s)	I was complaining too early...transmission is now butter smooth at 7K, and a fresh Motul Gear oil 300, 4th gear grind is gone Sent from my SM-N900T using Tapatalk

03-30-2015, 01:14 PM	#96
PA-86 Member Join Date: Apr 2014 Drives: Scion FR-S Ultramarine, Triumph STR Location: PA Posts: 99 Thanks: 47 Thanked 43 Times in 33 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I have to be very gentle with my 6th to 5th downshift or I'll get a rough grinding sound. Just started recently, currently running Redline in the trans and diff. Otherwise the gear box is great.

03-30-2015, 06:02 PM	#98
PA-86 Member Join Date: Apr 2014 Drives: Scion FR-S Ultramarine, Triumph STR Location: PA Posts: 99 Thanks: 47 Thanked 43 Times in 33 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Let me know what they say.

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