follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-02-2016, 01:32 AM   #29
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,742
Thanks: 28,566
Thanked 31,522 Times in 16,328 Posts
Mentioned: 706 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Eighty 6 View Post
Trans, oh hes talking about the diff. Its a common issue the rattling on the trans.
What caught my eye was people telling him it could be a serious prob. Yeah ok, not applicable
It's my understanding that the OP is talking about (concerned about) the driveshaft in his car ..... more specifically, the carrier bearing along the driveshaft.

So, what is your car doing that concerns you .. ??


humfrz
humfrz is offline   Reply With Quote
The Following User Says Thank You to humfrz For This Useful Post:
Ultramaroon (10-02-2016)
Old 10-02-2016, 04:44 AM   #30
Eighty 6
Newbie
 
Join Date: Dec 2015
Drives: Gt86
Location: Outer space
Posts: 447
Thanks: 811
Thanked 445 Times in 210 Posts
Mentioned: 6 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by humfrz View Post
It's my understanding that the OP is talking about (concerned about) the driveshaft in his car ..... more specifically, the carrier bearing along the driveshaft.

So, what is your car doing that concerns you .. ??


humfrz
The gear rattles at high RPM in any gear, its a common problem with manuals
Eighty 6 is offline   Reply With Quote
Old 10-02-2016, 05:59 AM   #31
nikitopo
Senior Member
 
nikitopo's Avatar
 
Join Date: Mar 2014
Drives: '15 BRZ RA
Location: Greece
Posts: 3,787
Thanks: 2,415
Thanked 1,940 Times in 1,260 Posts
Mentioned: 29 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Eighty 6 View Post
The gear rattles at high RPM in any gear, its a common problem with manuals
What do you mean the gear rattles at high RPM? Does it make noises or just the shift knob shaking?
nikitopo is offline   Reply With Quote
Old 10-02-2016, 06:16 AM   #32
Eighty 6
Newbie
 
Join Date: Dec 2015
Drives: Gt86
Location: Outer space
Posts: 447
Thanks: 811
Thanked 445 Times in 210 Posts
Mentioned: 6 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by nikitopo View Post
What do you mean the gear rattles at high RPM? Does it make noises or just the shift knob shaking?
Shift knob shakes but I get the sound of metal on metal. Dealer is going to replace that. Its a common problem with manuals, something to do with the reverse lockout or something. Cant touch it otherwise I void the warranty
Eighty 6 is offline   Reply With Quote
The Following User Says Thank You to Eighty 6 For This Useful Post:
nikitopo (10-02-2016)
Old 10-02-2016, 11:22 AM   #33
Phothiraj
Senior Member
 
Join Date: Mar 2013
Drives: Lightning Red BRZ
Location: Connecticut
Posts: 135
Thanks: 1
Thanked 14 Times in 14 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Ultramaroon View Post
More importantly, does it feel about evenly springy no matter which way you push it, or does the driveshaft flop at all inside the isolator?

IOW, does it feel like the bearing has separated from the isolator?

22mm feels about ballpark to me. I've messed with mine some.
It doesnt feel seperated but after asking my father whos been a mechanic for many years he also insists that the amount of play there is not normal. As well is it weird that only about 80-85% of the time it acts up when i'm driving and not 100% of the time? Also it seems to be a lot worse on my days to work in the rain
Phothiraj is offline   Reply With Quote
Old 10-02-2016, 02:35 PM   #34
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 29,742
Thanks: 28,566
Thanked 31,522 Times in 16,328 Posts
Mentioned: 706 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Phothiraj View Post
It doesnt feel seperated but after asking my father whos been a mechanic for many years he also insists that the amount of play there is not normal. As well is it weird that only about 80-85% of the time it acts up when i'm driving and not 100% of the time? Also it seems to be a lot worse on my days to work in the rain
Well now, there you have it ....... depression; driving to work ..... in the rain ....

Seriously, you mentioned that your car was rear ended. It's possible that the differential was "shifted" a bit, causing a misalignment of the driveshaft.

Again, I suggest you (and your father, if he is handy) take the car into an auto shop, have it put up on a hoist, run it in gear and observe the drive line.


humfrz

Last edited by humfrz; 10-02-2016 at 03:20 PM.
humfrz is offline   Reply With Quote
The Following 2 Users Say Thank You to humfrz For This Useful Post:
chaoskaze (10-02-2016), Ultramaroon (10-02-2016)
Old 10-02-2016, 03:08 PM   #35
Ultramaroon
Database Error
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,567
Thanks: 51,504
Thanked 36,080 Times in 18,710 Posts
Mentioned: 1102 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by Phothiraj View Post
It doesnt feel seperated but after asking my father whos been a mechanic for many years he also insists that the amount of play there is not normal. As well is it weird that only about 80-85% of the time it acts up when i'm driving and not 100% of the time? Also it seems to be a lot worse on my days to work in the rain
I was surprised with the amount of play myself. The only way to know for sure is to get in there and visually inspect it. It's really easy to look at from underneath the car.

I'm sticking even more with a bent or otherwise damaged driveshaft. It takes very little to throw it out of whack.
__________________
Ultramaroon is offline   Reply With Quote
The Following User Says Thank You to Ultramaroon For This Useful Post:
humfrz (10-02-2016)
Old 10-02-2016, 03:20 PM   #36
Tcoat
Senior Member
 
Tcoat's Avatar
 
Join Date: Jul 2014
Drives: 2020 Hakone
Location: London, Ont
Posts: 69,846
Thanks: 61,656
Thanked 108,281 Times in 46,456 Posts
Mentioned: 2491 Post(s)
Tagged: 50 Thread(s)
Quote:
Originally Posted by Phothiraj View Post
It doesnt feel seperated but after asking my father whos been a mechanic for many years he also insists that the amount of play there is not normal. As well is it weird that only about 80-85% of the time it acts up when i'm driving and not 100% of the time? Also it seems to be a lot worse on my days to work in the rain
In the rain you say. I am going to throw another theory at you which in light of your prior accident may also be relevant. It may not be your drive shaft at all but could be your exhaust. I bent a hanger on the exhaust on my old Talon and at certain speeds, a particular rev range and especially when the roads were wet with puddles it would thump like mad. I also blamed the driveshaft or dif for the problem. Took me weeks to figure it out and then one day I noticed the bent hanger. Twisted it back and never had the noise again. May be worth a look.
__________________
Racecar spelled backwards is Racecar, because Racecar.
Tcoat is offline   Reply With Quote
The Following 4 Users Say Thank You to Tcoat For This Useful Post:
chaoskaze (10-02-2016), humfrz (10-03-2016), Ultramaroon (10-02-2016), why? (10-02-2016)
Old 10-03-2016, 08:56 AM   #37
justatroll
Senior Member
 
justatroll's Avatar
 
Join Date: Dec 2015
Drives: Full race 4cyl boxer
Location: CO, USA
Posts: 587
Thanks: 310
Thanked 510 Times in 269 Posts
Mentioned: 20 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by Eighty 6 View Post
Cant touch it otherwise I void the warranty
False, False, False - Whoever told you that should be strung up
__________________
Arguing with an engineer is like wrestling with a Pig in the mud. You are never going to win and after a couple of hours you realize that he likes it.
justatroll is offline   Reply With Quote
The Following 2 Users Say Thank You to justatroll For This Useful Post:
Ultramaroon (10-03-2016), why? (10-03-2016)
Old 10-03-2016, 01:02 PM   #38
Ultramaroon
Database Error
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,567
Thanks: 51,504
Thanked 36,080 Times in 18,710 Posts
Mentioned: 1102 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by justatroll View Post
False, False, False - Whoever told you that should be strung up
Good eye. I missed that.
__________________
Ultramaroon is offline   Reply With Quote
Old 10-03-2016, 01:07 PM   #39
Ultramaroon
Database Error
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,567
Thanks: 51,504
Thanked 36,080 Times in 18,710 Posts
Mentioned: 1102 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by Phothiraj View Post
As well is it weird that only about 80-85% of the time it acts up when i'm driving and not 100% of the time?
This is how it is with flutter. Could be fine and stable until just the right input kicks over the initial resonance. If it's something as heavy as a driveshaft, once it gets going, it could easily rip itself apart.
__________________
Ultramaroon is offline   Reply With Quote
Old 10-03-2016, 01:11 PM   #40
Phothiraj
Senior Member
 
Join Date: Mar 2013
Drives: Lightning Red BRZ
Location: Connecticut
Posts: 135
Thanks: 1
Thanked 14 Times in 14 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Ultramaroon View Post
I was surprised with the amount of play myself. The only way to know for sure is to get in there and visually inspect it. It's really easy to look at from underneath the car.

I'm sticking even more with a bent or otherwise damaged driveshaft. It takes very little to throw it out of whack.
I'll go ahead and check if it was a bent exhaust hangar but almost positive it's the driveshaft, it only happens when in gear and as soon as I throw it into neutral it goes away. Also, these past 2 days it seems as if the car is driving fine with a chatter sound every now and then. But I've also haven't driven far to make it noticeable.
Phothiraj is offline   Reply With Quote
Old 10-03-2016, 01:27 PM   #41
Ultramaroon
Database Error
 
Ultramaroon's Avatar
 
Join Date: Sep 2014
Drives: a 13 e8h frs
Location: vantucky, wa
Posts: 31,567
Thanks: 51,504
Thanked 36,080 Times in 18,710 Posts
Mentioned: 1102 Post(s)
Tagged: 9 Thread(s)
Quote:
Originally Posted by Phothiraj View Post
I'll go ahead and check if it was a bent exhaust hangar but almost positive it's the driveshaft, it only happens when in gear and as soon as I throw it into neutral it goes away. Also, these past 2 days it seems as if the car is driving fine with a chatter sound every now and then. But I've also haven't driven far to make it noticeable.
Wait, are you saying while it's vibrating, if you throw it into neutral and coast it goes away? At the same speed?

The driveshaft is constantly connected to the rear wheels. If the car is moving, the driveshaft is spinning.
__________________
Ultramaroon is offline   Reply With Quote
Old 10-03-2016, 01:56 PM   #42
Eighty 6
Newbie
 
Join Date: Dec 2015
Drives: Gt86
Location: Outer space
Posts: 447
Thanks: 811
Thanked 445 Times in 210 Posts
Mentioned: 6 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by justatroll View Post
False, False, False - Whoever told you that should be strung up
In this "region" thats pretty much it, you cant give them an excuse to void your warranty. Not much u can do about it if they do, other than lengthy, expensive lawsuits etc and the outcome is not gauranteed. They dont want me to touch it I wont
Eighty 6 is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Axle-Exchange One-piece Aluminum Driveshaft ~ impressions slates74 Engine, Exhaust, Transmission 152 08-07-2021 08:39 PM
Aluminum 1-piece Driveshaft Cjs_ Engine, Exhaust, Transmission 17 03-25-2015 05:45 PM
New The Driveshaft Shop Carbon Fiber 1-Piece Driveshaft Evasive Motorsports Engine, Exhaust, Transmission 1 09-24-2013 03:27 PM


All times are GMT -4. The time now is 04:57 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.