Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

Valve Questions

  • Please log in to reply
2 replies to this topic

#1 brat86


    USMB Regular

  • Members
  • PipPipPip
  • 36 posts
  • Gainesville Florida

Posted 03 December 2003 - 05:44 PM

I have a few questions about the in and ex valves in an EA-82.

1. What would cause the intake valves to become pitted on the cylinder side? The ex valves are not pitted.

2. Are the valves coated? After cleaning, one of the ex valves has a light spot that looks like bare metal. The rest of the valve face and the other 3 ex's are dark. Is this a factory coating or baked on oil like a cast iron frying pan?

3. What is the seat angle for the ex valves? I need to cut costs as much as possible so I may regrind the ex's depending on the answer to Q2.

#2 archemitis


    guy smiley

  • Members
  • 3,554 posts
  • the big minnie

Posted 03 December 2003 - 05:57 PM

they arent coated, as far as i know. the angle should be 45, or 46 degrees depending on how subaru lapped them in.

not sure grinding your valves would save you any money, because thats not part of the job that takes any time

#3 brat86


    USMB Regular

  • Members
  • PipPipPip
  • 36 posts
  • Gainesville Florida

Posted 03 December 2003 - 06:29 PM

Time I have. Money I don't. Broke my leg in June and am just now only working about half time. I'm looking at about $12 a valve from the local dealer. The in's are shot. But the ex's seem ok. I was going to lightly grind the seat margin to get a "factory fresh" seal. Probably not necessary, but I have access to an old Black and Decker valve grinder and have never done it. I will practice on the in's first though.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users