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Subaru Crank Bolt #4572156
11/12/17 07:03 PM
11/12/17 07:03 PM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Getting ready to do first timing belt on 2007 Outback 2.5 basic, non turbo @ 91k miles. Dealer replaced leaking head gaskets (under warranty) so I can't assume crank bolt is torqued to factory specs. I am expecting it may be a bear to remove as I do not have enough room between a/c condenser and pulley for my impact. Several folks on various Subaru forums say to insert a stout screw driver or socket extension in the flex plate inspection port to lock engine. I have heard about folks doing this on other engines too. My question/concern is overstressing or breaking the flex plate. What is the inspection port for? Is it there to allow someone to lock the engine? Can flex plate take the stress of removing a stubborn crank bolt?

Also, seems to be a lot of confusion about crank bolt torque. Some say 94, some say 130, some say oil threads, some say dry. Unfortunately, I do not have a FSM. Some of the confusion might be 2.2 vs 2.5 and/or SOHC vs DOHC. Anyone know for sure how to properly torque this crank bolt?

Thanks.

Re: Subaru Crank Bolt [Re: artbuc] #4572162
11/12/17 07:08 PM
11/12/17 07:08 PM
Joined: Dec 2005
Posts: 10,268
Upper Midwest
kschachn Offline
kschachn  Offline
Joined: Dec 2005
Posts: 10,268
Upper Midwest
Please don't take this as a snarky post, but I never, ever perform major maintenance on a car without the factory service manual, or a good substitute (Haynes or Alldata). There's just too much I can screw up and the questions you are asking would be answered with proper documentation. I would not trust anything else. You say you do not have anything but I would get it.


1994 BMW 530i, 238K
1996 Honda Accord, 266K
1999 Toyota Sienna, 407K
2000 Toyota ECHO, 280K
Re: Subaru Crank Bolt [Re: artbuc] #4572181
11/12/17 07:23 PM
11/12/17 07:23 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Assenmacher SU7250 Crank Pulley Holder


Re: Subaru Crank Bolt [Re: artbuc] #4572192
11/12/17 07:29 PM
11/12/17 07:29 PM
Joined: Sep 2015
Posts: 1,588
USA
mk378 Offline
mk378  Offline
Joined: Sep 2015
Posts: 1,588
USA
Use two breaker bars, one on the bolt and one on the pulley holder, and pull in opposite directions.

If the car is manual you can just shift into 5 and set the brake to keep the crank from turning.

Re: Subaru Crank Bolt [Re: artbuc] #4572213
11/12/17 07:51 PM
11/12/17 07:51 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA

Re: Subaru Crank Bolt [Re: artbuc] #4572257
11/12/17 08:29 PM
11/12/17 08:29 PM
Joined: Jan 2006
Posts: 2,690
Idaho
SubLGT Offline
SubLGT  Offline
Joined: Jan 2006
Posts: 2,690
Idaho
Originally Posted By: artbuc
Getting ready to do first timing belt on 2007 Outback 2.5 basic, non turbo @ 91k miles….Unfortunately, I do not have a FSM….


Download the manual:

https://techinfo.subaru.com/stis/#/login

Re: Subaru Crank Bolt [Re: artbuc] #4572311
11/12/17 10:26 PM
11/12/17 10:26 PM
Joined: Aug 2017
Posts: 660
MN
14Accent Offline
14Accent  Offline
Joined: Aug 2017
Posts: 660
MN
Easy peasy. Use a 22mm socket on a long breaker bar. Wedge the handle of the breaker bar on the ground, pointing towards the drivers side of the engine. Then, BRIEFLY engage the starter. You'll feel a slight jolt. Make sure and turn the key off immediately!

Works every time.


2013 Chevrolet Volt - Saves enough in fuel to pay for itself!

2003 Cadillac Seville STS - The winter "beater", it uses the Volt's fuel
Re: Subaru Crank Bolt [Re: artbuc] #4572358
11/13/17 03:36 AM
11/13/17 03:36 AM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Thanks for the responses but can anyone answer my question about the flex plate?

Re: Subaru Crank Bolt [Re: 14Accent] #4572359
11/13/17 03:38 AM
11/13/17 03:38 AM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Originally Posted By: 14Accent
Easy peasy. Use a 22mm socket on a long breaker bar. Wedge the handle of the breaker bar on the ground, pointing towards the drivers side of the engine. Then, BRIEFLY engage the starter. You'll feel a slight jolt. Make sure and turn the key off immediately!

Works every time.


Yes, have used this several times on my Toyota’s but am concerned to do this on my friend’s Subie cuz I have no confidence in how dealer reinstalled crank bolt when he did the head gasket job. Also, still need to hold crank pulley to torque.

Last edited by artbuc; 11/13/17 03:46 AM.
Re: Subaru Crank Bolt [Re: kschachn] #4572360
11/13/17 03:40 AM
11/13/17 03:40 AM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Originally Posted By: kschachn
Please don't take this as a snarky post, but I never, ever perform major maintenance on a car without the factory service manual, or a good substitute (Haynes or Alldata). There's just too much I can screw up and the questions you are asking would be answered with proper documentation. I would not trust anything else. You say you do not have anything but I would get it.


I agree. That is why I got the FSM before I did my wife’s MDX. However, after watching many excellent videos, this timing belt is not at all tricky...just want to confirm torque spec. Also, since Subaru makes service tools to hold the crank pulley, I am quite sure that is what the FSM would recommend. I believe the flex plate inspection port is there for one purpose, to inspect. However, if if can safely be used to lock engine, I would be willing to try it.

Last edited by artbuc; 11/13/17 03:42 AM.
Re: Subaru Crank Bolt [Re: Merkava_4] #4572361
11/13/17 03:44 AM
11/13/17 03:44 AM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Originally Posted By: Merkava_4


Have looked at that. Company23 also has a great video for this engine.

Re: Subaru Crank Bolt [Re: artbuc] #4572377
11/13/17 04:46 AM
11/13/17 04:46 AM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Just found this

https://www.gates.com/~/media/files/gates/automotive/resources/tech-tips-and-tsbs/subaru_loctite.pdf

Re: Subaru Crank Bolt [Re: 14Accent] #4572473
11/13/17 07:55 AM
11/13/17 07:55 AM
Joined: Sep 2015
Posts: 1,588
USA
mk378 Offline
mk378  Offline
Joined: Sep 2015
Posts: 1,588
USA
Originally Posted By: 14Accent
You'll feel a slight jolt. Make sure and turn the key off immediately!

You're serious?

I mean if you were to try what is described, you should at least disable the ignition system so there's not a chance the engine will start. Then there is the issue that the bolt can't be reinstalled and properly tightened this way.

Re: Subaru Crank Bolt [Re: artbuc] #4572480
11/13/17 08:06 AM
11/13/17 08:06 AM
Joined: Jan 2016
Posts: 29
Bothell, WA
Todari09 Offline
Todari09  Offline
Joined: Jan 2016
Posts: 29
Bothell, WA
This is how I removed and reinstalled the crank bolt.
https://www.youtube.com/watch?v=JnkcnqF_S3c
Torque is 138.2 ft-lbs according to Service Manual page H4SO-42.

Re: Subaru Crank Bolt [Re: Todari09] #4572577
11/13/17 09:37 AM
11/13/17 09:37 AM
Joined: Dec 2005
Posts: 1,183
West Chester, PA
artbuc Offline OP
artbuc  Offline OP
Joined: Dec 2005
Posts: 1,183
West Chester, PA
Originally Posted By: Todari09
This is how I removed and reinstalled the crank bolt.
https://www.youtube.com/watch?v=JnkcnqF_S3c
Torque is 138.2 ft-lbs according to Service Manual page H4SO-42.


Yikes! Is your alternator bearing screaming yet? I saw that video and quickly concluded that is not for me. I think you mean 132.8.

Last edited by artbuc; 11/13/17 09:41 AM.
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