Jump to content


Photo
- - - - -

Broken Cylinder Head Bolt


  • Please log in to reply
4 replies to this topic

#1 TOALing

TOALing

    1st Gear

  • Active Members
  • Pip
  • 14 posts

Posted 07 May 2012 - 11:10 PM

Posted Image

I accidentally broke one of the three that stick out of the cylinder head cover for my 92 Corolla while changing the head cover gasket. Is this going to be a difficult fix?

Edited by TOALing, 07 May 2012 - 11:20 PM.

#2 dom

dom

    04 Corolla CE 5spd

  • Active Members
  • PipPipPipPip
  • 923 posts

Posted 08 May 2012 - 08:02 AM

Thata's just a valve (head) cover stud... Remove valve cover for better access to the broken stud. Then remove broken stud from head with Vise-Grip pliers. Install new stud in the head, holding it on the smooth portion with Vise-Grips.
Toyota part number for the stud is 90116-06074 (80mm long including the broken off end). They retail for $1.47 each.


Part 11158
Posted Image

Edited by dom, 08 May 2012 - 08:07 AM.

#3 Papa Bear

Papa Bear

    2nd Gear

  • Active Members
  • PipPip
  • 150 posts

Posted 08 May 2012 - 08:42 AM

Be sure you don't over-tighten the bolt. Check the torque specs for installing it.
You shouldn't break a valve cover bolt.

#4 TOALing

TOALing

    1st Gear

  • Active Members
  • Pip
  • 14 posts

Posted 08 May 2012 - 09:58 AM

Thata's just a valve (head) cover stud... Remove valve cover for better access to the broken stud. Then remove broken stud from head with Vise-Grip pliers. Install new stud in the head, holding it on the smooth portion with Vise-Grips.
Toyota part number for the stud is 90116-06074 (80mm long including the broken off end). They retail for $1.47 each.


Part 11158
Posted Image

Awesome! THANK YOU for the detailed response.



You shouldn't break a valve cover bolt.


Yea, I blame my cheapness for this. I went out and bought two cheap clicker torque wrenches, a relabeled 1/2" Calhawk and a Duralast, that both never clicked when I hit my torque.


*Update*

I got the parts ordered from the dealer. The bolt ran me $5.15 while the nut cost me around $8 which amounts to the most costly nut and bolt I've bought in my life.

Edited by TOALing, 08 May 2012 - 10:40 AM.

#5 Bikeman982

Bikeman982

    Bikeman982

  • Active Members
  • PipPipPipPipPipPip
  • 9,211 posts

Posted 25 May 2012 - 07:14 PM

You could have bought the nut at a hardware store - same nut, lower price.