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2003 Subaru Outback H6-3.0 Bend Valves?

Posted: Tue Dec 29, 2015 9:34 am
by sbebenelli
We have a 2003 Subaru Outback H6-3.0 VIN 4S3BH806237606903 that has something wrong with the right timing chain. We have not pulled the cover to see what happened. Does anyone know if these bend valves when the chain breaks?

We do not see many Subaru's around here.

Re: 2003 Subaru Outback H6-3.0 Bend Valves?

Posted: Tue Dec 29, 2015 11:16 am
by Rich
I know a 4 cylinder would, not 100% sure on V6. I assume they will. Let me make a call

Re: 2003 Subaru Outback H6-3.0 Bend Valves?

Posted: Tue Dec 29, 2015 12:03 pm
by Rich
Wholesale parts guy at Subaru doesn't think it bends valves.

Re: 2003 Subaru Outback H6-3.0 Bend Valves?

Posted: Tue Dec 29, 2015 12:12 pm
by sbebenelli
OK thank you. Guess we'll pull it apart and see what happened.

Re: 2003 Subaru Outback H6-3.0 Bend Valves?

Posted: Tue Dec 29, 2015 1:18 pm
by Rich
Its a Subi, be gentle. :wink:

(I drive Subi)


Here is a link if you want to look at parts photos.

http://parts.serrasubaruoftraversecity.com/

Re: 2003 Subaru Outback H6-3.0 Bend Valves?

Posted: Tue Dec 29, 2015 2:30 pm
by sbebenelli
Rich wrote:Its a Subi, be gentle. :wink:

(I drive Subi)


Here is a link if you want to look at parts photos.

http://parts.serrasubaruoftraversecity.com/
OK thank you. Haven't had time to get to it yet. I'll let you know what I find. Might be next week with this being a short week.

Re: 2003 Subaru Outback H6-3.0 Bend Valves?

Posted: Thu Dec 31, 2015 2:43 am
by steven kiser
Cover Area


SOURCE: Subaru Tech Tips

TITLE: Engine Noise - All H6 Vehicles

APPLIES TO: All 6 cylinder vehicles except SVX

SERVICE TIP:

If you encounter an H6 engine with a noise coming from the front timing chain area and suspect it might be caused by the timing chain tensioner, please follow the instructions below. SOA has tried this procedure and found it to be an effective fix.

Repair Procedure:

1) Start the Engine
2) Raise engine RPM's under cold condition, up to 5000rpm 3 to 4 times.
3) Confirm whether the noise is eliminated.
4) If the noise still exists, repeat above procedure again.


If you cannot eliminate the noise with above procedure, replace Chain Tensioner.

© 2015 ALLDATA LLC. All rights reserved. Terms and Conditions

Forcing the tensioner like this isn't a proper repair as far as I can see. Improper oil, restricted port to tensioner feed, bad tensioner, bad guides or stretched chain comes to mind.