Welcome to the North American Subaru Impreza Owners Club Saturday August 19, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 05-11-2009, 12:04 PM   #1
Scooby Newbie
Member#: 189378
Join Date: Sep 2008
Default Bent Valves Question....

My Timing belt skipped after the Vibration Damper seperated. The Dampner, seperated at the rubber (5 years old and 110,000 miles) and the pully part of it, slipped into the Timing cover, melting the plastic, and the plastic get into the timing belt, causing the skip.

All 8 of the exhast valves are bent.

2002 - 2.5 - Non turbo.

The pistons have tiny impact marks (fingernail size and shape) barely 1/4 in long, and maybe 1/16 inches deep into the piston.

Any worry here, or does anyone have EXPERIANCE with the rods being damaged ( twisted) from the impact?

Any other info, or "Watch-out for's" that I should be watching out for?

I will have the valve guides inspected for cracking, and I will also be installing new Intake Valves too.

I will be using a new Perrin Pully, have one on my other two Subaru's, and I love them.

Thanks in advance. Mike
* Registered users of the site do not see these ads.
Mike_Subaru is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 05-11-2009, 12:51 PM   #2
Scooby Specialist
Member#: 74321
Join Date: Nov 2004
Chapter/Region: MWSOC
Location: clarksville AR
2004 wrx wag
black UTEC stg 4


the only damage I have seen from this kind of failure has been isolated to the valves. I haven't seen any bottom end damage.
crampfan is offline   Reply With Quote
Old 05-11-2009, 06:46 PM   #3
NASIOC Supporter
Member#: 165749
Join Date: Dec 2007
Chapter/Region: South East
Location: Central Floriderp

just replace the guides... even if they are not cracked they will be out of spec dimensionally and may lead to oil consumption to be on the conservative side. premature valve wear, bad sealing, etc etc are also likely. The parts are reasonably cheap and with the heads out to do the valve job, labor will be next to nothing.
GrundleJuice is offline   Reply With Quote

Thread Tools
Display Modes

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
Quick bent valve Question (engine in crash) DHRDAN Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 4 12-29-2009 11:01 AM
Bent/damaged valve question drfrink24 Pre-2002 Factory Turbo Powertrain 3 10-12-2007 11:01 AM
Bent Valves....Expense overrated? elhalisf Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 8 05-02-2004 03:54 PM
How 2 check 4 bent valves? serious Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 8 12-26-2003 06:23 PM
WRX w/ Bent valves need advise cky211 Service & Maintenance 10 02-05-2003 04:55 PM

All times are GMT -4. The time now is 05:44 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.