|
Mechanical Maintenance (Oil, Fluids, Break-In, Servicing) Everything related to the mechanical maintenance of the FR-S and BRZ |
|
Thread Tools | Search this Thread |
12-03-2015, 09:34 PM | #1 |
Senior Member
Join Date: Jan 2014
Drives: FR-S
Location: Cali
Posts: 582
Thanks: 50
Thanked 44 Times in 34 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
Final Drive Swap Break-in
So I just got my final drive swap. I'm currently doing my break-in atm
First one was drive for 15-20 mins and sit for an hour Second drive was about 30 mins and sit for an hour I really had to get home so I drove in traffic for an hour and a half. Question is, is the traffic bad for break-in when you swap out your ring and pinion? I still have my torsen LSD, only did a final drive swap. How high should I rev? Should I shift at lower rpms than 3k? |
12-03-2015, 09:59 PM | #2 |
Senior Member
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,942
Thanks: 28,911
Thanked 31,977 Times in 16,481 Posts
Mentioned: 709 Post(s)
Tagged: 2 Thread(s)
|
As far as I know, differentials don't need any special break in.
Least wise, back in the day, they didn't. humfrz may be wrong on this ..... humfrz |
12-03-2015, 10:10 PM | #3 | |
Senior Member
Join Date: Jan 2014
Drives: FR-S
Location: Cali
Posts: 582
Thanks: 50
Thanked 44 Times in 34 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
Quote:
The people @ corner3garage were like yeah you don't need to break anything in you can go hard it cause I didn't swap out my LSD and only did a final drive swap. It sounded really sketchy.. |
|
12-04-2015, 12:03 AM | #4 |
Senior Member
Join Date: Jan 2014
Drives: FR-S
Location: Cali
Posts: 582
Thanks: 50
Thanked 44 Times in 34 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
as I'm driving I hear some chattering noise while accelerating slightly, I also hear a slight howl when I turn right =/. I'm not sure if it's just me being paranoid or there really is something wrong. I feel as if the shims are loose and shaking
|
12-04-2015, 12:12 AM | #5 | |
Senior Member
Join Date: Jun 2012
Drives: 2012 Grey TRD GT86, 2015 VW Golf R
Location: Wellington, New Zealand
Posts: 1,572
Thanks: 666
Thanked 942 Times in 540 Posts
Mentioned: 62 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Mine has made no noise and has been perfect from when I drove it away after the swap. Diffs are pretty specialist work. If you used a mechanic that has hardly done any they may not have done it well. Did you have the pinion bearings replaced at the same time?
__________________
My fully loaded TRD86
http://www.ft86club.com/forums/showt...760#post582760 |
|
12-04-2015, 12:23 AM | #6 | |
Senior Member
Join Date: Jan 2014
Drives: FR-S
Location: Cali
Posts: 582
Thanks: 50
Thanked 44 Times in 34 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Anyone in socal that did the swap wanna compare sounds so I can have a peace of mind? |
|
12-04-2015, 01:00 AM | #7 | |
Senior Member
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,942
Thanks: 28,911
Thanked 31,977 Times in 16,481 Posts
Mentioned: 709 Post(s)
Tagged: 2 Thread(s)
|
Quote:
https://www.marlincrawler.com/tech/d...re-information humfrz PS - after further looking into this ....... I figure your differential is mostly broke in by now. However, you may not want to climb up Pikes Peak with your new differential for another 500 miles. Last edited by humfrz; 12-04-2015 at 01:21 AM. |
|
12-04-2015, 01:29 AM | #8 | |
Senior Member
Join Date: Jan 2014
Drives: FR-S
Location: Cali
Posts: 582
Thanks: 50
Thanked 44 Times in 34 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
Quote:
|
|
12-04-2015, 01:45 AM | #9 | |
Senior Member
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,942
Thanks: 28,911
Thanked 31,977 Times in 16,481 Posts
Mentioned: 709 Post(s)
Tagged: 2 Thread(s)
|
Quote:
humfrz |
|
12-04-2015, 01:45 AM | #10 |
Member
Join Date: Dec 2012
Drives: 2013 WRB Subaru BRZ Limited 6MT
Location: Cerritos CA
Posts: 17
Thanks: 2
Thanked 9 Times in 6 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
The chattering noise could have something to do with the backlash between the ring and pinion gears.
|
The Following 2 Users Say Thank You to gianniBRAVO For This Useful Post: | Nickosport (12-04-2015), Summerwolf (12-04-2015) |
12-04-2015, 02:21 AM | #11 | |
Senior Member
Join Date: Jun 2012
Drives: 2012 Grey TRD GT86, 2015 VW Golf R
Location: Wellington, New Zealand
Posts: 1,572
Thanks: 666
Thanked 942 Times in 540 Posts
Mentioned: 62 Post(s)
Tagged: 0 Thread(s)
|
Quote:
No more clunks, whines etc. If it is it has been done badly IMHO. I didn't trust my dealer and had a race car builder do my swap.
__________________
My fully loaded TRD86
http://www.ft86club.com/forums/showt...760#post582760 |
|
12-04-2015, 02:27 AM | #12 |
Senior Member
Join Date: Jan 2014
Drives: FR-S
Location: Cali
Posts: 582
Thanks: 50
Thanked 44 Times in 34 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
|
12-04-2015, 09:12 AM | #13 |
Senior Member
Join Date: Jul 2014
Drives: 2015 WRB BRZ Premium
Location: Atlanta, GA
Posts: 114
Thanks: 37
Thanked 58 Times in 39 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
|
I wouldn't think you would hear noises any more than the OE diff since you still have a torsen. If you are hearing noises it is probably because the backlash is not right. The ring and pinion has to be shimmed to mesh properly, and its not a simple thing to do. Guys that have been doing it for 30 years can do it by feel. Us normal plebs have to use feeler gauges and a lot of patience. Either way clunks and whines should be the same as your OE diff.
Break in is way more involved on a clutch pack diff, torsen diffs still require break in, but at least you can break them in on the street. Figure 8s while breaking in a clutch diff is pain in the ass.
__________________
2015 WRB BRZ - Nameless - Raceseng - Eibach - Whiteline - Cusco - Perrin
|
The Following User Says Thank You to Nickosport For This Useful Post: | azynneo (12-04-2015) |
12-04-2015, 12:26 PM | #14 |
Senior Member
Join Date: Apr 2014
Drives: 2013 Ultramarine FR-S
Location: Springfield, MO
Posts: 1,948
Thanks: 2,539
Thanked 1,415 Times in 804 Posts
Mentioned: 31 Post(s)
Tagged: 3 Thread(s)
|
What company did you get the final drive from? I remember there being comments about one of the companies (m-factory?) FDs that have a slight noise to them.
__________________
|
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Ecu Tuning after Final Drive Swap | Toyota86.ir | Software Tuning | 14 | 11-17-2015 02:39 PM |
Final Drive 4.67 | Bongertz | Engine, Exhaust, Transmission | 33 | 09-02-2015 03:11 PM |
final gear swap on AT | xsnapshot | Engine, Exhaust, Transmission | 2 | 02-19-2015 07:25 PM |
3.3 Final drive? | Manji | Engine, Exhaust, Transmission | 18 | 01-01-2015 02:51 PM |
My final gear swap project | PantsDants | Engine, Exhaust, Transmission | 120 | 06-29-2014 07:24 PM |