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 > Issues | Warranty | Recalls / TSB

Issues | Warranty | Recalls / TSB Problems, issues, recalls, TSBs


User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-21-2018, 02:23 PM   #547
ermax
Senior Member
 
ermax's Avatar
 
Join Date: Sep 2017
Drives: 2022 BRZ Limited Silver
Location: Jacksonville, FL
Posts: 2,532
Thanks: 882
Thanked 2,045 Times in 1,188 Posts
Mentioned: 68 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by n0thing View Post
@ermax as in regular shop manual for camshaft removal? it still shows removal of cam sub-assembly first, then caps
The cam is bolted to the subassembly not the head. If you unbolted the subassembly then you wouldn't need to unbolt the cam caps. I agree with Tcoat, we need the actual instructions because it seems no one actually understands how this engine fits together.
ermax is offline   Reply With Quote
Old 12-21-2018, 02:41 PM   #548
Syche
Senior Member
 
Syche's Avatar
 
Join Date: Jun 2017
Drives: 2013 Black FR-S 6A
Location: Calgary
Posts: 134
Thanks: 37
Thanked 52 Times in 39 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
I guess I dodge a bullet on this one guys LOL
__________________
Quote:
Originally Posted by 22R View Post
Now get off your Mom's computer and go wash the BRZ she bought you.

22R
Syche is offline   Reply With Quote
Old 12-21-2018, 03:19 PM   #549
n0thing
Senior Member
 
Join Date: Jan 2014
Drives: Subaru BRZ
Location: Markham
Posts: 394
Thanks: 48
Thanked 90 Times in 53 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by ermax View Post
The cam is bolted to the subassembly not the head. If you unbolted the subassembly then you wouldn't need to unbolt the cam caps. I agree with Tcoat, we need the actual instructions because it seems no one actually understands how this engine fits together.
Yes, if you unbolt the cam subassembly from the head, the cams come up together as well. But you'll need to clean and reseal the cam subassembly to the head during installation. Perhaps that's a step they wanted to avoid?
n0thing is offline   Reply With Quote
Old 12-22-2018, 08:06 AM   #550
ermax
Senior Member
 
ermax's Avatar
 
Join Date: Sep 2017
Drives: 2022 BRZ Limited Silver
Location: Jacksonville, FL
Posts: 2,532
Thanks: 882
Thanked 2,045 Times in 1,188 Posts
Mentioned: 68 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by n0thing View Post
Yes, if you unbolt the cam subassembly from the head, the cams come up together as well. But you'll need to clean and reseal the cam subassembly to the head during installation. Perhaps that's a step they wanted to avoid?


I know what the original service manual says. I am trying to understand what the recall instructions are asking for.

Do the “new” instructions ask for A or B:
A: remove the cam caps and leave the subassembly bolted to the head.
B: unbolt the subassembly from the head

As I said before, option A would save hours of time because it avoids most of the packing seal but risks head warping. Option B is what the original manual tells you to do.
ermax is offline   Reply With Quote
Old 12-22-2018, 09:46 AM   #551
n0thing
Senior Member
 
Join Date: Jan 2014
Drives: Subaru BRZ
Location: Markham
Posts: 394
Thanks: 48
Thanked 90 Times in 53 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
recall instructions ask for A
n0thing is offline   Reply With Quote
The Following 2 Users Say Thank You to n0thing For This Useful Post:
ermax (12-22-2018), RallySport (12-31-2018)
Old 12-25-2018, 11:08 AM   #552
nikitopo
Senior Member
 
nikitopo's Avatar
 
Join Date: Mar 2014
Drives: '15 BRZ RA
Location: Greece
Posts: 3,787
Thanks: 2,416
Thanked 1,943 Times in 1,260 Posts
Mentioned: 29 Post(s)
Tagged: 0 Thread(s)
Some insider information. In Japan the work will not be done at the dealers place as in normal recalls, but in 8 service factory centers nationwide (2 places in Gunma prefecture, Tokyo, Iwate, Tochigi, Aichi, Shiga, Ehime ). The recalled vehicles will be transported from the dealer to the service factories for the work. Therefore it'll cost about one week per vehicle.
nikitopo is offline   Reply With Quote
Old 12-25-2018, 12:43 PM   #553
Muaddib
Mentat
 
Muaddib's Avatar
 
Join Date: Jun 2013
Drives: 2013 Scion FRS 6MT
Location: Vancouver
Posts: 542
Thanks: 666
Thanked 358 Times in 198 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by nikitopo View Post
Some insider information. In Japan the work will not be done at the dealers place as in normal recalls, but in 8 service factory centers nationwide (2 places in Gunma prefecture, Tokyo, Iwate, Tochigi, Aichi, Shiga, Ehime ). The recalled vehicles will be transported from the dealer to the service factories for the work. Therefore it'll cost about one week per vehicle.
I don't think we will get that kind of service in North America.
Muaddib is offline   Reply With Quote
Old 12-25-2018, 01:32 PM   #554
DarkPira7e
Rust bucket enthusiast
 
DarkPira7e's Avatar
 
Join Date: Feb 2017
Drives: 2013 Turbo Firestorm FRS
Location: Vermont
Posts: 3,920
Thanks: 3,192
Thanked 4,084 Times in 2,041 Posts
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Muaddib View Post
I don't think we will get that kind of service in North America.
You'd want them to transport your vehicle on a carrier to a facility and then back to you after doing the recall work? I say no thanks, I'll keep it close to me where I can be assured dopes other than the ones close to me aren't handling it. Much easier to go after someone for unsavory practice in person than remotely if it came to that
DarkPira7e is offline   Reply With Quote
Old 12-25-2018, 03:18 PM   #555
RZNT4R
Professional Mechanic
 
Join Date: Apr 2010
Drives: 2017 86 6MT Oceanic
Location: Quebec, Canada
Posts: 789
Thanks: 17
Thanked 633 Times in 371 Posts
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by ermax View Post
Must be planning to go out the bottom rather than the top. I saw someone say they will be recharging the AC but if you go out the bottom I hardly see a need to evacuate there AC. Who knows.
I don't think I've ever opened up an AC system to pull a subaru engine. I just pull the compressor aside, if there's not enough slack in the lines to just put it on the strut tower, it's proper to just hook it out of the way under the hood with a bungee cord.

About the cam caps vs carrier housing:

The service manual indicates

Quote:
37. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY RH

NOTICE:

Do not remove the intake and exhaust camshafts first as it may cause a deformation of the cylinder head sub-assembly.
Quote:
41. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY LH

NOTICE:

Do not remove the intake and exhaust camshafts first as it may cause a deformation of the camshaft housing sub-assembly LH.
My issues with this is:

- It's already contradicting itself.
- A cylinder head stands little chance of getting warped by the flimsy lower cam housing should the upper housing the removed in place: the head is still bolted to the block
- The upper camshaft housing will undergo the same stress, should it be separated on or away from the engine: I'll flop around just as much.
- The lower camshaft housing has more chance of remaining straight if it stays bolted to the already flat and stiff cylinder head that's already bolted to the flat and stiff crankcase.
RZNT4R is offline   Reply With Quote
Old 12-26-2018, 08:00 AM   #556
ermax
Senior Member
 
ermax's Avatar
 
Join Date: Sep 2017
Drives: 2022 BRZ Limited Silver
Location: Jacksonville, FL
Posts: 2,532
Thanks: 882
Thanked 2,045 Times in 1,188 Posts
Mentioned: 68 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by RZNT4R View Post
I don't think I've ever opened up an AC system to pull a subaru engine. I just pull the compressor aside, if there's not enough slack in the lines to just put it on the strut tower, it's proper to just hook it out of the way under the hood with a bungee cord.
I agree on most cars but on the Twins the lines have to be very severely bent to clear the engine when going out the top. I was able to pull it off and so have many others but if I was a dealer I would avoid the risk of destroying the lines. The manual calls for evacuating the AC and I'm sure that is how they would do it.

Quote:
Originally Posted by RZNT4R View Post
- It's already contradicting itself.
I agree with you on this point. The wording is a little confusing. I think they were talking about the heads though. My logic is that there is no such thing as a "cylinder head sub-assembly" on this car. There is a head and a "camshaft" housing sub-assembly.

Quote:
Originally Posted by RZNT4R View Post
- A cylinder head stands little chance of getting warped by the flimsy lower cam housing should the upper housing the removed in place: the head is still bolted to the block
It isn't the flimsy subassembly that warps heads, it's the valve springs that warp the heads. I don't think it would be an issue unbolting caps first if a correct sequence was laid out by the engineers. This just isn't the way they originally intended it to be done.

Quote:
Originally Posted by RZNT4R View Post
- The upper camshaft housing will undergo the same stress, should it be separated on or away from the engine: I'll flop around just as much.
No it doesn't because the springs are not in the picture once the subassembly is removed.

Last edited by ermax; 12-26-2018 at 08:16 AM.
ermax is offline   Reply With Quote
Old 12-26-2018, 08:06 AM   #557
ermax
Senior Member
 
ermax's Avatar
 
Join Date: Sep 2017
Drives: 2022 BRZ Limited Silver
Location: Jacksonville, FL
Posts: 2,532
Thanks: 882
Thanked 2,045 Times in 1,188 Posts
Mentioned: 68 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by DarkPira7e View Post
You'd want them to transport your vehicle on a carrier to a facility and then back to you after doing the recall work? I say no thanks, I'll keep it close to me where I can be assured dopes other than the ones close to me aren't handling it. Much easier to go after someone for unsavory practice in person than remotely if it came to that
Cars are safely transported all the time. I'd rather have my car transported to a team of guys that are dedicated to this specific task and know they did it right. I'm not saying the local dealer would mess it up but I think the odds would be better with a dedicated team.
ermax is offline   Reply With Quote
The Following User Says Thank You to ermax For This Useful Post:
humfrz (12-26-2018)
Old 12-26-2018, 08:37 AM   #558
RZNT4R
Professional Mechanic
 
Join Date: Apr 2010
Drives: 2017 86 6MT Oceanic
Location: Quebec, Canada
Posts: 789
Thanks: 17
Thanked 633 Times in 371 Posts
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by ermax View Post

It isn't the flimsy subassembly that warps heads, it's the valve springs that warp the heads. I don't think it would be an issue unbolting caps first if a correct sequence was laid out by the engineers. This just isn't the way they originally intended it to be done.



No it doesn't because the springs are not in the picture once the subassembly is removed.

Since it's 2 cylinders per bank, there's a "zero lift range" where the valve springs are completely unloaded, it's easy to have the whole valvetrain unstressed for disassembly on the engine.
RZNT4R is offline   Reply With Quote
Old 12-26-2018, 08:38 AM   #559
ermax
Senior Member
 
ermax's Avatar
 
Join Date: Sep 2017
Drives: 2022 BRZ Limited Silver
Location: Jacksonville, FL
Posts: 2,532
Thanks: 882
Thanked 2,045 Times in 1,188 Posts
Mentioned: 68 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by RZNT4R View Post
Since it's 2 cylinders per bank, there's a "zero lift range" where the valve springs are completely unloaded, it's easy to have the whole valvetrain unstressed for disassembly on the engine.
That's a great point!
ermax is offline   Reply With Quote
Old 12-26-2018, 09:36 AM   #560
Yoshoobaroo
TRACKBREAD
 
Yoshoobaroo's Avatar
 
Join Date: Mar 2016
Drives: 2013 BRZ
Location: Florida
Posts: 3,929
Thanks: 2,660
Thanked 4,024 Times in 1,895 Posts
Mentioned: 30 Post(s)
Tagged: 0 Thread(s)
Garage
Quote:
Originally Posted by RZNT4R View Post
Since it's 2 cylinders per bank, there's a "zero lift range" where the valve springs are completely unloaded, it's easy to have the whole valvetrain unstressed for disassembly on the engine.


I really doubt they're unloaded at any point in time. That would make for a very rattly valvetrain.
Yoshoobaroo 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
Broken Valve Spring sybrite Engine, Exhaust, Transmission 45 11-02-2018 04:20 AM
Valve spring swap rcmf5525 Engine, Exhaust, Transmission 6 05-19-2018 03:12 PM
Jrsc replacement diverter valve issue Brzxton Forced Induction 6 12-08-2017 09:39 AM
GSC FA20 Valve Spring Kits MAPerformance Engine, Exhaust, Transmission 41 07-20-2015 10:22 AM
Skunk2 Dual Valve Spring and Titanium Retainers limitedblkwrx Engine, Exhaust, Transmission 0 01-04-2015 11:12 PM


All times are GMT -4. The time now is 03:20 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.