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

- - - - -

Cam Cap Bolt Broke

  • Please log in to reply
3 replies to this topic

#1 SubieTrav


    USMB Regular

  • Members
  • 140 posts
  • Denver

Posted 21 March 2013 - 11:23 PM

I'm replacing the head gaskets on a 98 OB. One of the cam cap bolts broke off in the head. Any helpful ideas as to how to remove the broken part of the bolt that is still in the head.

#2 gbhrps


    20 Year Subie Fan

  • Members
  • 1,108 posts
  • Canada

Posted 22 March 2013 - 03:04 PM

The only way to get out a broken bolt is to drill down its centre far enough that a bolt exractor can be wound in, and then turn counter clockwise to wind out the broken section. I've done it many times over the years, but never on a head in the engine bay.


I suggest removing the head again, and using a drill press try the method I stated. Its a scary job, but you really don't have another option. Take it slow and be cautious. Be sure to buy a GOOD bolt extractor. Cheap ones often break off in the bolt making the job even more troublesome.


If you're inclined to not want to tackle the job yourself, a good machine shop should be able to do the job. Good Luck!

#3 1 Lucky Texan

1 Lucky Texan

    I read a lot about Subarus. '03H6OBW,'06WRX

  • Members
  • 7,956 posts
  • Texas

Posted 22 March 2013 - 11:11 PM

if you decide to drill, use a left-hand twist drill - might loosen the bolt as you drill, if not, you can still use the extractoer.



or try one of these if the bolt isn't flush;







#4 SubieTrav


    USMB Regular

  • Members
  • 140 posts
  • Denver

Posted 23 March 2013 - 04:23 PM

I went back to the shop that resurfaced the heads and they said they could dip it in a tank of solution and zap it with electicity to extract the bolt. Then they would put a helicoil in. All said and done it wuld cost more than $100. So I just went to the junk yard and pulled one off a car with the cams and lifters for $46 including core.


I did try to drill it out with an extractor drill bit, but it broke. I'll look around to find a good quality extractor bit and try again.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users