break in period for transmission? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

rydollasign · 11-10-2018, 02:31 AM

hey guys,

I got my transmission replaced due to a 4th gear grind issue covered under warranty and was wondering if there was a "break in period" for the new transmission? Im thankful it was replaced under warranty. the shifts are butter smooth now.

any feedback would be appreciated.

thanks

Mr.ac · 11-10-2018, 02:43 AM

It's in your manual. Simple stuff huh?

DarkPira7e · 11-10-2018, 10:22 AM

My manual states that you need to make several hard stops from 60-5mph as a break in procedure and to bleed the fluid to remove any air pockets if the pedal seems soft.

Wait no, it says that the car comes equipped with a 12v power sou- shit, just realized I can't understand an index. Sorry OP, Did you check Google?

humfrz · 11-10-2018, 02:49 PM

Well now, rydollasign, as far as I know, there isn't a formal break in period for this MT. However, I would suggest you read over some of the suggested shifting procedures mentioned on this forum. Hint #1 - timing is everything -

.

@Mr.ac - I don't see any reference to a transmission break in period (procedure) in my 2013 FR-S manual. Do you want to help me out here or are you just yanking on the OP's chain? -

@DarkPira7e - I suggest you have at least 2 cups of coffee before posting -

humfrz

Mr.ac · 11-10-2018, 07:58 PM

@humfrz it's a little of both really. But the actual brake in period is the same for a new car engine. Nice low revs till you hit 1k. Or what ever it is. Engine and tranny are grouped in, as so I read it to be.

So wasn't that easy?
Also.....can I interest you on a new Civic Si, you don't have to worry about weak trannies, , Civic trannies are 90% bulletproof you know?

Ultramaroon · 11-10-2018, 09:41 PM

No need to be extra gentle but there is actually something to consider with a new MT. Unless the balk rings were pre-lapped by hand before final assembly, the syncros will continue to improve for several thousand miles before they grab well and the transmission really shifts the way it was designed. Mine didn't start shifting well until about eight thousand miles and kept improving through 15-17 thousand.

humfrz · 11-11-2018, 12:12 AM

Quote:

Originally Posted by Mr.ac

@humfrz it's a little of both really. But the actual brake in period is the same for a new car engine. Nice low revs till you hit 1k. Or what ever it is. Engine and tranny are grouped in, as so I read it to be.

So wasn't that easy?
Also.....can I interest you on a new Civic Si, you don't have to worry about weak trannies, , Civic trannies are 90% bulletproof you know?

Well, OK - it could be read thatta way.

Well now, about that Civic Si. Does it come with crickets? How are the valve springs?

It is a handsome vehicle, which I may consider, if they fuck up my FR-S by changing the valve springs -

Do you have a blue one in stock?

humfrz

Mr.ac · 11-11-2018, 01:01 AM

Quote:

Originally Posted by humfrz

Well, OK - it could be read thatta way.

Well now, about that Civic Si. Does it come with crickets? How are the valve springs?

It is a handsome vehicle, which I may consider, if they fuck up my FR-S by changing the valve springs -

Do you have a blue one in stock?

humfrz

No crickets. No reported issues yet.
Yes blues are in stock.

rydollasign · 11-11-2018, 05:08 AM

I appreciate the info guys!

humfrz · 11-11-2018, 05:39 PM

Quote:

Originally Posted by Ultramaroon

No need to be extra gentle but there is actually something to consider with a new MT. Unless the balk rings were pre-lapped by hand before final assembly, the syncros will continue to improve for several thousand miles before they grab well and the transmission really shifts the way it was designed. Mine didn't start shifting well until about eight thousand miles and kept improving through 15-17 thousand.

Did you just make that up ? -

humfrz

Ultramaroon · 11-11-2018, 07:33 PM

Quote:

Originally Posted by humfrz

Did you just make that up ? -

Sapphireho · 11-11-2018, 07:42 PM

Quote:

Originally Posted by humfrz

Did you just make that up ? -

humfrz

Engineers...

11-10-2018, 02:43 AM	#2
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	It's in your manual. Simple stuff huh? __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

11-10-2018, 07:58 PM	#5
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	@humfrz it's a little of both really. But the actual brake in period is the same for a new car engine. Nice low revs till you hit 1k. Or what ever it is. Engine and tranny are grouped in, as so I read it to be. So wasn't that easy? Also.....can I interest you on a new Civic Si, you don't have to worry about weak trannies, , Civic trannies are 90% bulletproof you know? __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

11-10-2018, 09:41 PM	#6
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,867 Thanks: 52,126 Thanked 36,517 Times in 18,919 Posts Mentioned: 1106 Post(s) Tagged: 9 Thread(s)	No need to be extra gentle but there is actually something to consider with a new MT. Unless the balk rings were pre-lapped by hand before final assembly, the syncros will continue to improve for several thousand miles before they grab well and the transmission really shifts the way it was designed. Mine didn't start shifting well until about eight thousand miles and kept improving through 15-17 thousand. __________________ service manuals

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11-10-2018, 02:31 AM	#1
rydollasign Member Join Date: Sep 2018 Drives: 2014 brz limited Location: CA Posts: 13 Thanks: 2 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	break in period for transmission? hey guys, I got my transmission replaced due to a 4th gear grind issue covered under warranty and was wondering if there was a "break in period" for the new transmission? Im thankful it was replaced under warranty. the shifts are butter smooth now. any feedback would be appreciated. thanks

11-10-2018, 10:22 AM	#3
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,933 Thanks: 3,200 Thanked 4,095 Times in 2,045 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	My manual states that you need to make several hard stops from 60-5mph as a break in procedure and to bleed the fluid to remove any air pockets if the pedal seems soft. Wait no, it says that the car comes equipped with a 12v power sou- shit, just realized I can't understand an index. Sorry OP, Did you check Google?

11-10-2018, 02:49 PM	#4
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 29,867 Thanks: 28,790 Thanked 31,813 Times in 16,424 Posts Mentioned: 708 Post(s) Tagged: 2 Thread(s)	Well now, rydollasign, as far as I know, there isn't a formal break in period for this MT. However, I would suggest you read over some of the suggested shifting procedures mentioned on this forum. Hint #1 - timing is everything - . @Mr.ac - I don't see any reference to a transmission break in period (procedure) in my 2013 FR-S manual. Do you want to help me out here or are you just yanking on the OP's chain? - @DarkPira7e - I suggest you have at least 2 cups of coffee before posting - humfrz

11-11-2018, 05:08 AM	#9
rydollasign Member Join Date: Sep 2018 Drives: 2014 brz limited Location: CA Posts: 13 Thanks: 2 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I appreciate the info guys!

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