Broken valve cover bolt
#1
Broken valve cover bolt
By the title and what you see here can i get that out at this point? I tried drilling a hole but as you can see its off center. Or if any of you are in the north Houston area ill pay you 40 bucks to do it for me. Thanks
#2
Re: Broken valve cover bolt
Usually you center punch the broken bolt to create the start point for drilling, then you use a cobalt drill bit to drill into the hardened steel of the bolt.
Usually an easy out at that point will work as those bolts are typically broken from the user over torquing them and snapping them, not from corroding into place.
Usually an easy out at that point will work as those bolts are typically broken from the user over torquing them and snapping them, not from corroding into place.
#4
Re: Broken valve cover bolt
Punching first so you drill in the exact center is important. Get a left-handed drill bit. When it grabs the bolt, it will often back it out.
To drive somewhere you can put the cover on with the other bolts (do NOT overtighten) and put duct tape over the hole for this one.
To drive somewhere you can put the cover on with the other bolts (do NOT overtighten) and put duct tape over the hole for this one.
#5
Re: Broken valve cover bolt
Punching first so you drill in the exact center is important. Get a left-handed drill bit. When it grabs the bolt, it will often back it out.
To drive somewhere you can put the cover on with the other bolts (do NOT overtighten) and put duct tape over the hole for this one.
To drive somewhere you can put the cover on with the other bolts (do NOT overtighten) and put duct tape over the hole for this one.
OP: Left handed drill is also referred to as a reverse drill bit in case you have trouble finding one (which you shouldn't). Torque specs for valve cover bolts is (IIRC) 7-9 ft/lbs. A lot of foot/pounds torque wrenches don't start that low so you can use an inch/pound and convert foot/lbs to inch/pounds with an online calculator. A method I use is to tighten VC bolts with extension socket hand tight and then socket wrench drive another 3/4 turn for final tightening.
#6
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
murmur9
Honda Civic / Del Sol (1992 - 2000)
6
03-10-2006 05:06 PM
LoudAccord
Honda Civic / Del Sol (1992 - 2000)
2
01-09-2003 10:43 AM