5th gear synchro harshness? - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

vwong · 01-09-2013, 05:47 PM

Quote:

Originally Posted by OrbitalEllipses

I find 5-6 to be much worse than 4-5.

I am having the same problem...it doesn't want to seem to go into 6th

OrbitalEllipses · 01-09-2013, 06:03 PM

Quote:

Originally Posted by vwong

I am having the same problem...it doesn't want to seem to go into 6th

Sounds like warranty work. I get into 6th...it's just notchy and grinds on occasion.

vwong · 01-10-2013, 05:22 PM

Quote:

Originally Posted by OrbitalEllipses

Sounds like warranty work. I get into 6th...it's just notchy and grinds on occasion.

oh no it'll go fine but like yours its notchy at times, i haven't had it grind yet though but I'll see what they say when I take it in for my first service. 2-3 has been kinda weird too but it goes away after I've driven it for a lil bit.

gmookher · 01-11-2013, 09:04 PM

how many of you have "post delivery adjusted clutches?"

Subie · 01-11-2013, 09:28 PM

Quote:

Originally Posted by gmookher

how many of you have "post delivery adjusted clutches?"

Not me.

tech4pdx · 01-12-2013, 12:47 AM

Quote:

Originally Posted by gmookher

how many of you have "post delivery adjusted clutches?"

Never touched mine.

gmookher · 01-12-2013, 12:56 AM

You have an issue then

Dealer time!

tech4pdx · 01-12-2013, 12:58 AM

Mine comes and goes based on temp usually. I'll try the pento first and see if less affected by temp.

Gixxer86 · 01-29-2013, 06:38 PM

Same Issue here. Even with the car warmed up, if im getting on the freeway or driving "briskly" on surface streets, then it is pretty harsh(even grinding sometimes) going 4th-5th. Also have the same issue when going from 6th-5th. If i'm doing it to slow down, then its not "quite" as bad, but if i shift 6th-5th to accelerate suddenly, then it is just has bad as the 4th-5th... I rev-match well, car is warmed and only 3K on the car. 5th has always been a little rough since i purchased the car, but it is certainly getting much worse.

tech4pdx · 01-29-2013, 11:36 PM

This MT is a box of cracker jacks.. (: haha

OrbitalEllipses · 02-04-2013, 12:49 AM

Drove the car twice today: once to the superbowl party and once back to my house. On both trips I got a grind into 5th gear; once each trip.

ahaghshenas · 03-23-2013, 04:58 PM

My gears are pretty much good all around but just quicker downshifts from 6th to 5th at mid to high rpm are giving me a small crunch with clutch fully depressed!!

Is this normal?? my car has always done it

andrew20195 · 03-24-2013, 12:55 PM

Quote:

Originally Posted by Subie

My thoughts exactly (emphasis mine). I'm wondering if it would be better to downshift into 4th instead for synchro longevity since it comparatively engages with ease. I may change the transmission fluid soon to see if it changes the behavior at all.

Downshifting from 6th to 4th will decrease synchro longevity on 4th gear, as the shaft speed difference will be greater than if you were shifting 6th-5th-4th.

How much will it decrease longevity? I have no clue.

EL_to_TBD · 03-25-2013, 08:09 PM

Has anyone that posted in this thread or the others related to this issue tried the Pentosin fluid?
Did it eliminate the issue?
Thanks.

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01-11-2013, 09:04 PM	#18
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)	how many of you have "post delivery adjusted clutches?"

01-12-2013, 12:56 AM	#21
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)	You have an issue then Dealer time!

01-12-2013, 12:58 AM	#22
tech4pdx Make love Join Date: Nov 2012 Drives: H8R.. Not really Location: Edge of the Milky Way Posts: 780 Thanks: 524 Thanked 214 Times in 143 Posts Mentioned: 31 Post(s)	Mine comes and goes based on temp usually. I'll try the pento first and see if less affected by temp.

01-29-2013, 06:38 PM	#23
Gixxer86 Member Join Date: Jan 2013 Drives: Scion FR-S (Asphalt) Location: Inland Empire Posts: 85 Thanks: 21 Thanked 13 Times in 10 Posts Mentioned: 1 Post(s)	Same Issue here. Even with the car warmed up, if im getting on the freeway or driving "briskly" on surface streets, then it is pretty harsh(even grinding sometimes) going 4th-5th. Also have the same issue when going from 6th-5th. If i'm doing it to slow down, then its not "quite" as bad, but if i shift 6th-5th to accelerate suddenly, then it is just has bad as the 4th-5th... I rev-match well, car is warmed and only 3K on the car. 5th has always been a little rough since i purchased the car, but it is certainly getting much worse.

01-29-2013, 11:36 PM	#24
tech4pdx Make love Join Date: Nov 2012 Drives: H8R.. Not really Location: Edge of the Milky Way Posts: 780 Thanks: 524 Thanked 214 Times in 143 Posts Mentioned: 31 Post(s)	This MT is a box of cracker jacks.. (: haha

02-04-2013, 12:49 AM	#25
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,890 Times in 2,903 Posts Mentioned: 123 Post(s)	Drove the car twice today: once to the superbowl party and once back to my house. On both trips I got a grind into 5th gear; once each trip.

03-23-2013, 04:58 PM	#26
ahaghshenas Member Join Date: Jul 2012 Drives: Subaru BRZ Location: UAE Posts: 92 Thanks: 5 Thanked 13 Times in 10 Posts Mentioned: 0 Post(s)	My gears are pretty much good all around but just quicker downshifts from 6th to 5th at mid to high rpm are giving me a small crunch with clutch fully depressed!! Is this normal?? my car has always done it

03-25-2013, 08:09 PM	#28
EL_to_TBD EL_to_FR-S! Join Date: Mar 2013 Drives: Scion FR-S Location: Ontario, Canada Posts: 46 Thanks: 15 Thanked 9 Times in 5 Posts Mentioned: 1 Post(s)	Has anyone that posted in this thread or the others related to this issue tried the Pentosin fluid? Did it eliminate the issue? Thanks.

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