what kind of bolt is this?

MX-3 Money · Post by **MX-3 Money** » April 13th, 2005, 6:26 pm

I was taking apart my old k8 and i'm stuck cuz i have no idea what like of socket i need to use on this bolt. Its like a star shaped bolt and looks like it have 12 sides to it. its under the vavle cover, right next to the vavle springs and ther are six total. anyone know what socket i need to use?
http://img.villagephotos.com/p/2005-4/9 ... P_0008.GIF
http://img.villagephotos.com/p/2005-4/9 ... P_0009.GIF
sorry for the crappy pics.

Tunes67 · Post by **Tunes67** » April 13th, 2005, 6:27 pm

Those are the head bolts. Use a 12 point 14mm socket (I think thats the size) or you can go to Mazda or Napa and request the proper socket.

Tunes67

PS - Also.. you may need to use a breaker bar (Big a-- bar with a 1/2" socket adapter) to get enough torque to break those suckers free.. depending on the condition of the engine.. if it was overheated.. could be a serious pain to get those bolts out.

babyblueMX3 · Post by **babyblueMX3** » April 13th, 2005, 7:27 pm

btw their's 8 bolts per heads..well on the kl at least..should be the same on the k8..
isn't 12mm ?? I really think it's 12

Tunes67 · Post by **Tunes67** » April 13th, 2005, 7:32 pm

Could be BabyBlue.. I was trying to guesstimate LOL I havent removed one of those bolts before so I couldnt really be positive

Tunes67

babyblueMX3 · Post by **babyblueMX3** » April 13th, 2005, 9:38 pm

lol ok I thought you were sure..
I am 95% positively sure it's 12mm
they're only 2 kind of bolts like that on the engine and they are the head bolts and rods bolts..
rod are 10mm IIRC

Tunes67 · Post by **Tunes67** » April 13th, 2005, 9:43 pm

I have never laid a wrench on a K series engine (yet.. I am sure I will help someone sometime or eventually get a GS of my own) But the bolts on my B2000 looked the same and those were a 14mm.. so I guessed

Tunes67

mrspanky79 · Post by **mrspanky79** » April 13th, 2005, 10:01 pm

i think they are 10mm in the heads and 12mm for the mains and dont buy the cheapo socket they are in there very tight

jimishadow · Post by **jimishadow** » April 14th, 2005, 9:59 am

they are 12 mm on the 4 cyl.probobly same on 6,get a good half inch drive they should be tight.

Spinkx79 · Post by **Spinkx79** » April 14th, 2005, 5:51 pm

12mm 100% sure

babyblueMX3 · Post by **babyblueMX3** » April 14th, 2005, 5:54 pm