Synchros followup - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

FRiSson · 06-24-2012, 10:38 PM

At 1200 miles I took my FR-S to the dealer to have the slightly crunchy gearshift checked out. There was some noise and mechanical clunkiness when I shifted sometimes. Note: I've been shifting since I was a kid and it had nothing to do with technique. Anyway I am hear to report that between 1600 and 2000 miles the problem got better - then pretty much disappeared. Maybe the parts just have to wear a little to shift smoothly. It is still a fairly notchy transmission, but the 1-2 shift is much, much smoother.

Asphaltfrs1 · 06-24-2012, 11:10 PM

Thanks for the info, good to hear

Rossman · 06-24-2012, 11:48 PM

I used to get some weird behaviour in my Nissan Versa MT when I got it, gearshift would sometimes shake when shifting out of first gear, but like the OP, seemed to correct itself in the first few thousand km's...

empower-auto · 06-25-2012, 02:20 PM

If I am correct - this transmission is derived from that found in the Honda S2000 .. and that notchy shift feeling is 100% normal. I like it.

rice_classic · 06-25-2012, 02:48 PM

Quote:

Originally Posted by empower-auto

If I am correct - this transmission is derived from that found in the Honda S2000 .. and that notchy shift feeling is 100% normal. I like it.

I actually thought the same thing until I did some digging.

The Honda S2000 transmission is the Aisin AZ6 and that was the initial template for the development of this transmission but the engineers changed roughly 80% of the transmission. It also shares parts with another transmission as well and thus it is its own thing: the TL70

http://kaizenfactor.wordpress.com/20...n-or-is-scion/

The notchy feeling is just it wearing in. The 1st-3rd gears have triple cone synchros for improved shifts at high rpms.

mines13 · 06-25-2012, 02:49 PM

My AP2 certainly did not even have a hint of this. Interesting.

gmookher · 08-31-2012, 03:36 PM

I'm gonna be rinning a back to back on pennzoil syncromesh vs gm syncromesh vs a pentosin product i use in my bmw thats also gl3/4 called mtf2, has a lower VI; seems the mazda folks have good luck with 2nd gear notchyness in their aisin tranny with the GM lube

denkigrve · 08-31-2012, 03:38 PM

Transmission stuff always scares me. It's such a vital part of the car. Thanks for the posts! It always helps to just know what to watch out for.

06-24-2012, 10:38 PM	#1
FRiSson Senior Member Join Date: Jun 2012 Drives: FR-S MT Location: New England Posts: 1,081 Thanks: 118 Thanked 483 Times in 241 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Synchros followup At 1200 miles I took my FR-S to the dealer to have the slightly crunchy gearshift checked out. There was some noise and mechanical clunkiness when I shifted sometimes. Note: I've been shifting since I was a kid and it had nothing to do with technique. Anyway I am hear to report that between 1600 and 2000 miles the problem got better - then pretty much disappeared. Maybe the parts just have to wear a little to shift smoothly. It is still a fairly notchy transmission, but the 1-2 shift is much, much smoother.

06-25-2012, 02:20 PM	#4
empower-auto Kouki-Monster Join Date: May 2012 Drives: 2013 Scion FR-S Location: Saskatoon, SK Posts: 1,137 Thanks: 11 Thanked 562 Times in 261 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	If I am correct - this transmission is derived from that found in the Honda S2000 .. and that notchy shift feeling is 100% normal. I like it. __________________ Rich Anderson EMPOWER AUTO

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Synchros problem?	FRiSson	Issues \| Warranty \| Recalls / TSB	191	06-21-2016 05:27 PM
Dealers -- Followup	DP	Scion FR-S / Toyota 86 GT86 General Forum	1	06-06-2012 01:03 PM

06-24-2012, 11:10 PM	#2
Asphaltfrs1 Senior Member Join Date: May 2012 Drives: 2013 asphalt fr-s Location: Los angeles Posts: 488 Thanks: 109 Thanked 125 Times in 88 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Thanks for the info, good to hear

06-24-2012, 11:48 PM	#3
Rossman Senior Member Join Date: Jun 2012 Drives: '22 BRZ, '17 BRZ (prev '13 FR-S) Location: Backwoods Ontario Posts: 366 Thanks: 44 Thanked 123 Times in 68 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I used to get some weird behaviour in my Nissan Versa MT when I got it, gearshift would sometimes shake when shifting out of first gear, but like the OP, seemed to correct itself in the first few thousand km's...

06-25-2012, 02:49 PM	#6
mines13 Join Date: Nov 2011 Drives: '13 FR-S '12 CBR1000RR Location: Irvine, CA Posts: 1,038 Thanks: 305 Thanked 527 Times in 241 Posts Mentioned: 22 Post(s) Tagged: 0 Thread(s)	My AP2 certainly did not even have a hint of this. Interesting.

08-31-2012, 03:36 PM	#7
gmookher Banned Join Date: Aug 2012 Drives: VortechSC,BorlaEL,Perrin,GCRace Location: HighHeatHighAltitudeAZ,USA Posts: 2,254 Thanks: 458 Thanked 669 Times in 394 Posts Mentioned: 9 Post(s) Tagged: 2 Thread(s)	I'm gonna be rinning a back to back on pennzoil syncromesh vs gm syncromesh vs a pentosin product i use in my bmw thats also gl3/4 called mtf2, has a lower VI; seems the mazda folks have good luck with 2nd gear notchyness in their aisin tranny with the GM lube

User Name		Remember Me?
Password