Timing Cover Leak - What other parts should I change while I'm in there? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

FR & S · 12-02-2019, 12:42 AM

Hi All,

I'm new to this forum and this is my very first post. Glad to be a member!

I have an AT '15 FR-S and discovered that I need to reseal the timing cover as it's leaking oil. I've seen a couple old threads on the topic but I wanted to know if anyone has a list of other parts I should replace while I'm in there.

Gaskets are the first thing that come to mind. If anyone has a list and even better, easy access to part numbers, I'd be most appreciative. Just trying to make most use since I'll be taking apart the car anyways. Would hate to have to do it again down the line. Thanks!

-FR & S

Boccaccio · 12-02-2019, 04:30 AM

A google search would net you the following thread:

https://www.ft86club.com/forums/show...=125848&page=2

Also:

- Disassembly:

https://demos.starbase7.net/t3Portal...M000000T5703FX

- Re-assembly:

https://demos.starbase7.net/t3Portal...M000000T5303HX

And for any future DIY maintenance, here's the Workshop manual ( @Ultramaroon , thank you

):

https://demos.starbase7.net/t3Portal/

PS

Be VERY careful when cleaning/removing the old seal packing. Do NOT drop any residue/remains into the upper portion of the oil pan/oil galleries/engine guts.
I would cover the exposed timing chain area with a suitable, non-tearable protective foil/cloth/etc. to shield it against any scraped off residue.

Ultramaroon · 12-02-2019, 12:58 PM

+1 on screen

https://parts.toyota.com for part numbers. It's handy to have your VIN ready.

Be super careful with the connectors on the OCVs when handling the timing cover. People have snapped them.

FR & S · 12-06-2019, 05:16 PM

Thanks so much for the replies. Really good info.

I gotta say, the "easier" fix posted by ZZT86 seems kind of tempting but not sure how lasting the fix would be.

https://www.ft86club.com/forums/show...=125848&page=2

Ultramaroon · 12-06-2019, 05:37 PM

When I first saw it I thought it would fail miserably. Was surprised and happy to see how well it held up. Surface prep is key. If it's a small enough leak, the RTV will cure before oil has a chance weep though. Nothing wrong with giving it a shot.

FR & S · 12-06-2019, 07:27 PM

ultramaroon...have you also tried this method or know of others who have? or is this based on ZZT86's feedback? thanks!

Boccaccio · 12-09-2019, 01:30 AM

This part of the engine/timing cover does not see high oil pressure (somebody correct me if that is not correct) so it should work

Thoroughly degrease/clean the area before sealant application, just like Ultramaroon mentioned.

Ultramaroon · 12-09-2019, 02:39 AM

Quote:

Originally Posted by FR & S

ultramaroon...have you also tried this method or know of others who have? or is this based on ZZT86's feedback? thanks!

I've seen cracked iron blocks successfully repaired with jb weld. If it's a slow enough seep and a good job with surface prep, I can easily see it lasting indefinitely. I've gotten away with similar but the patch in that thread was baller.

12-02-2019, 12:42 AM	#1
FR & S Member Join Date: Nov 2019 Drives: 2015 FR-S - Automatic Location: United States Posts: 10 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Timing Cover Leak - What other parts should I change while I'm in there? Hi All, I'm new to this forum and this is my very first post. Glad to be a member! I have an AT '15 FR-S and discovered that I need to reseal the timing cover as it's leaking oil. I've seen a couple old threads on the topic but I wanted to know if anyone has a list of other parts I should replace while I'm in there. Gaskets are the first thing that come to mind. If anyone has a list and even better, easy access to part numbers, I'd be most appreciative. Just trying to make most use since I'll be taking apart the car anyways. Would hate to have to do it again down the line. Thanks! -FR & S

12-02-2019, 12:58 PM	#3
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,867 Thanks: 52,127 Thanked 36,518 Times in 18,920 Posts Mentioned: 1106 Post(s) Tagged: 9 Thread(s)	+1 on screen https://parts.toyota.com for part numbers. It's handy to have your VIN ready. Be super careful with the connectors on the OCVs when handling the timing cover. People have snapped them. __________________ service manuals

12-06-2019, 05:37 PM	#5
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,867 Thanks: 52,127 Thanked 36,518 Times in 18,920 Posts Mentioned: 1106 Post(s) Tagged: 9 Thread(s)	When I first saw it I thought it would fail miserably. Was surprised and happy to see how well it held up. Surface prep is key. If it's a small enough leak, the RTV will cure before oil has a chance weep though. Nothing wrong with giving it a shot. __________________ service manuals

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Timing cover leak	sid94	DIY (Do-It-Yourself) Guides	4	04-03-2018 03:06 PM
Timing cover leak	sid94	DIY (Do-It-Yourself) Guides	5	12-16-2017 03:19 PM
Timing Cover Oil Leak	Keenercarguy	Issues \| Warranty \| Recalls / TSB	66	05-30-2016 11:59 PM
Oil Leak from either Timing Cover or Valve Cover	BRZY	Issues \| Warranty \| Recalls / TSB	5	04-06-2015 08:31 AM
oil leak at timing cover	choi0706	Issues \| Warranty \| Recalls / TSB	8	09-10-2014 06:25 PM

12-02-2019, 04:30 AM	#2
Boccaccio CAD monkey Join Date: Aug 2016 Drives: '15 GT86 Giallo - Supercharged Location: Slovenia Posts: 78 Thanks: 16 Thanked 66 Times in 36 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	A google search would net you the following thread: https://www.ft86club.com/forums/show...=125848&page=2 Also: - Disassembly: https://demos.starbase7.net/t3Portal...M000000T5703FX - Re-assembly: https://demos.starbase7.net/t3Portal...M000000T5303HX And for any future DIY maintenance, here's the Workshop manual ( @Ultramaroon , thank you ): https://demos.starbase7.net/t3Portal/ PS Be VERY careful when cleaning/removing the old seal packing. Do NOT drop any residue/remains into the upper portion of the oil pan/oil galleries/engine guts. I would cover the exposed timing chain area with a suitable, non-tearable protective foil/cloth/etc. to shield it against any scraped off residue.

12-06-2019, 05:16 PM	#4
FR & S Member Join Date: Nov 2019 Drives: 2015 FR-S - Automatic Location: United States Posts: 10 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks so much for the replies. Really good info. I gotta say, the "easier" fix posted by ZZT86 seems kind of tempting but not sure how lasting the fix would be. https://www.ft86club.com/forums/show...=125848&page=2

12-06-2019, 07:27 PM	#6
FR & S Member Join Date: Nov 2019 Drives: 2015 FR-S - Automatic Location: United States Posts: 10 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	ultramaroon...have you also tried this method or know of others who have? or is this based on ZZT86's feedback? thanks!

12-09-2019, 01:30 AM	#7
Boccaccio CAD monkey Join Date: Aug 2016 Drives: '15 GT86 Giallo - Supercharged Location: Slovenia Posts: 78 Thanks: 16 Thanked 66 Times in 36 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	This part of the engine/timing cover does not see high oil pressure (somebody correct me if that is not correct) so it should work Thoroughly degrease/clean the area before sealant application, just like Ultramaroon mentioned.

User Name		Remember Me?
Password